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Н Новости

Исследуем возможности ИИ писать код. Часть 1

Оглавление

ИИ — одна из самых обсуждаемых тем последних лет. Многие считают, что он заменит разработчиков, сделав их ненужными. Я решил проверить, насколько это утверждение правдиво, и провести исследование возможностей ИИ в написании кода.

Эта статья — первая из цикла. В рамках исследования я ставлю перед собой несколько задач:

  1. Проверить, насколько качественный и жизнеспособный код генерирует ИИ.

  2. Разобраться, действительно ли ИИ способен заменить разработчиков и можно ли без технических знаний создать работающее приложение.

  3. Сравнить выдачу нескольких LLM (Anthropic Claude 3.5, OpenAI ChatGPT-4o, OpenAI ChatGPT o1-preview, Deepseek R1) и удобство работы с ними.

  4. Поделиться опытом работы с ИИ, используя различные техники промптинга для получения качественных результатов выдачи.

Методология

В качестве отправной точки будет подготовлен шаблон проекта Spring Boot.

Стек:

  • Java 17

  • Spring Boot с JPA

  • Liquibase, Hibernate, Lombok

Потребуется реализовать приложение, в котором доступны CRUD-операции:

  • Создание операции (Operation)

  • Обновление операции (Operation)

  • Поиск всех операций (Operation)

  • Поиск операции по ID (Operation)

  • Удаление операции (Operation) Также необходимо будет написать unit и MVC тесты на небольшой кусок логики.

Каждой модели ИИ будет дан одинаковый начальный промпт. Затем я буду запрашивать реализацию различных частей функционала. Я не буду бесконечно улучшать код: если он нерабочий, я попрошу исправить ошибки, а если рабочий — отмечу возможные улучшения.

Общение с ИИ будет происходить на английском. Когда я работал с Anthropic Claude впервые, он плохо понимал русский язык, из-за чего качество ответов значительно ухудшалось. Поэтому, чтобы условия были одинаковыми, я буду использовать английский для всех моделей.

Итак, первым испытуемым будет Anthropic Claude 3.5 — или просто Клод.

Клод: начало пути

Весь исходный код доступен на GitHub. Как я уже писал ранее, я создал заготовку проекта с помощью Spring Initializr. Именно её я буду наполнять кодом.

Сначала нужно создать промпт для Клода. Он задаст тон общению и повлияет на качество выдачи.

Что важно указать в промпте?

  • Роль модели и перечень технологий, с которыми она должна работать.

  • Цель общения — что я хочу от ИИ.

  • Правила взаимодействия — например, как он должен отвечать и уточнять вопросы.

Первоначальный промпт

You will be acting as a backend developer. 
You are have an expertise in the following technologies: 
Java 21+, Spring boot, Spring JPA, Hibernate, Lombok, Spring Web, REST API, SQL.
Your goal is to create a production-ready solution for the user and answer 
their questions. You should clarify questions to provide the best possible answer. 
If you have any questions, ask them first without providing a solution. 
Only after all questions have been clarified, you provide a solution for the user.

You should maintain a friendly and professional tone.

Here are some important rules of conduct:
 - If you're not sure how to respond, say: "Sorry, I didn't understand you. 
    Could you please rephrase your question, please?"
 - If you don't know the answer to a question, say: 
    "I am sorry, but I don't know that answer. 
    Can you please clarify your question for me?"

Here is the user question:
 I have already created an application using Spring Initializr with the following dependencies:
Lombok, Spring Web, Spring Data JPA, PostgreSQL Driver, Liquibase Migration. 

Write a Liquibase migration for the tables.
<table1>
Category table with columns: 
  - category_id (bigint), 
  - category_name (varchar), 
  - category_description (varchar)
<table1>
<table2>
Operation table with columns: 
  - operation_id (bigint), 
  - operation_public_id (varchar), 
  - operation_name (varchar), 
  - operation_amount(bigdecimal), 
  - operation_type (enum), 
  - category_id (FK to category table)
<table2>

Suggest how to store the operation_type. 
In the code, the operation type will be an Enum with the values (DEPOSIT, WITHDRAW).

Think about the answer first before responding. Think step-by-step.

Ключевые фразы, улучшающие выдачу

  1. "If you have any questions, ask them first without providing a solution." Эта фраза значительно улучшает ответы модели. Вместо того чтобы сразу выдавать решение, она сначала задаст уточняющие вопросы. Это позволяет добавить детали, которые могли быть упущены.

  2. "Think step-by-step." Фраза заставляет модель лучше продумывать ответ и уменьшает количество ошибок и домыслов.

Помимо базовых инструкций, я также попросил Клода написать миграцию таблиц с использованием Liquibase. Я указал, какие колонки мне нужны, и попросил предложить вариант хранения типов операций.

Промпт готов, первый вопрос задан. Отправляем его Клоду и ждём ответа.

Ответ Клода

Let me analyze your requirements:

  1. Database Structure:

    • Two tables: Category and Operation

    • Category is the parent table with a primary key referenced by Operation

    • Operation has an enum field operation_type

  2. Questions for clarification:

    1. Should category_id in both tables be auto-incrementing?

    2. What should be the maximum lengths for varchar fields (category_name, category_description, operation_public_id, operation_name)?

    3. Should any of these fields be nullable?

    4. For operation_amount, how many digits before and after decimal point do you need?

    5. Should operation_public_id be unique?

Before I provide the Liquibase migration script, please answer these questions so I can create the most appropriate solution for your needs.

Regarding the operation_type storage, I suggest two approaches:

  1. As a VARCHAR field with a check constraint limiting values to 'DEPOSIT' and 'WITHDRAW'

  2. As a custom ENUM type in PostgreSQL

The first approach is generally more flexible for future modifications and better portable across different databases. Would you like me to proceed with this approach, or would you prefer the PostgreSQL ENUM type?

Please provide your preferences so I can create a complete migration script.

Именно поэтому важно давать правильные инструкции. Клод не стал сразу выдавать решение, а уточнил детали. Он проговорил, что ему требуется сделать, и задал вопросы по структуре таблиц (некоторые детали я специально не указывал). Это хороший знак: теперь я могу рассчитывать на корректную миграцию.

Кроме того, Клод предложил несколько вариантов хранения operation_type и объяснил, какой из них предпочитает и почему.

Отвечаем на вопросы Клода и ждём финальный вариант миграции.

1. Correct
2. Questions for clarification:
	1. Yes, category_id and operation_id should be auto-incremented
	2. For category_name, operation_public_id and operation_name - varchar(255), and for category_description (varchar 1000)
	3. Nullable fields: category_name
	4. 20 digits before decimal point and 2 after
	5. Yes

Regarding the operation_type, let's take the first approach.

Ошибки, исправления и первый Pull Request

Ответ Клода

Thank you for the clarification. I'll create a Liquibase migration script that meets all these requirements.

<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog
        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
                      http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-4.20.xsd">

    <changeSet id="001_create_category_table" author="developer">
        <createTable tableName="category">
            <column name="category_id" type="bigint">
                <constraints primaryKey="true" nullable="false"/>
            </column>
            <column name="category_name" type="varchar(255)">
                <constraints nullable="true"/>
            </column>
            <column name="category_description" type="varchar(1000)">
                <constraints nullable="false"/>
            </column>
        </createTable>

        <addAutoIncrement tableName="category" columnName="category_id" columnDataType="bigint" startWith="1" incrementBy="1"/>
    </changeSet>

    <changeSet id="002_create_operation_table" author="developer">
        <createTable tableName="operation">
            <column name="operation_id" type="bigint">
                <constraints primaryKey="true" nullable="false"/>
            </column>
            <column name="operation_public_id" type="varchar(255)">
                <constraints nullable="false" unique="true"/>
            </column>
            <column name="operation_name" type="varchar(255)">
                <constraints nullable="false"/>
            </column>
            <column name="operation_amount" type="decimal(22,2)">
                <constraints nullable="false"/>
            </column>
            <column name="operation_type" type="varchar(255)">
                <constraints nullable="false"/>
            </column>
            <column name="category_id" type="bigint">
                <constraints nullable="false"
                           foreignKeyName="fk_operation_category"
                           referencedTableName="category"
                           referencedColumnNames="category_id"/>
            </column>
        </createTable>

        <addAutoIncrement tableName="operation" columnName="operation_id" columnDataType="bigint" startWith="1" incrementBy="1"/>
    </changeSet>

    <changeSet id="003_add_operation_type_constraint" author="developer">
        <sql>
            ALTER TABLE operation ADD CONSTRAINT check_operation_type 
            CHECK (operation_type IN ('DEPOSIT', 'WITHDRAW'));
        </sql>
    </changeSet>

</databaseChangeLog>

После уточнения деталей он выдал код миграции, но в формате XML. Ни я, ни он не уточнили, в каком формате нужен результат, поэтому я попросил его переделать миграцию используя YAML.

Could you re-write the migration using YAML instead of XML?
Ответ Клода

Here's the equivalent Liquibase migration using YAML format:

databaseChangeLog:
  - changeSet:
      id: 001_create_category_table
      author: developer
      changes:
        - createTable:
            tableName: category
            columns:
              - column:
                  name: category_id
                  type: bigint
                  constraints:
                    primaryKey: true
                    nullable: false
              - column:
                  name: category_name
                  type: varchar(255)
                  constraints:
                    nullable: true
              - column:
                  name: category_description
                  type: varchar(1000)
                  constraints:
                    nullable: false
        - addAutoIncrement:
            tableName: category
            columnName: category_id
            columnDataType: bigint
            startWith: 1
            incrementBy: 1

  - changeSet:
      id: 002_create_operation_table
      author: developer
      changes:
        - createTable:
            tableName: operation
            columns:
              - column:
                  name: operation_id
                  type: bigint
                  constraints:
                    primaryKey: true
                    nullable: false
              - column:
                  name: operation_public_id
                  type: varchar(255)
                  constraints:
                    nullable: false
                    unique: true
              - column:
                  name: operation_name
                  type: varchar(255)
                  constraints:
                    nullable: false
              - column:
                  name: operation_amount
                  type: decimal(22,2)
                  constraints:
                    nullable: false
              - column:
                  name: operation_type
                  type: varchar(255)
                  constraints:
                    nullable: false
              - column:
                  name: category_id
                  type: bigint
                  constraints:
                    nullable: false
                    foreignKeyName: fk_operation_category
                    references: category(category_id)
        - addAutoIncrement:
            tableName: operation
            columnName: operation_id
            columnDataType: bigint
            startWith: 1
            incrementBy: 1

  - changeSet:
      id: 003_add_operation_type_constraint
      author: developer
      changes:
        - sql:
            sql: ALTER TABLE operation ADD CONSTRAINT check_operation_type CHECK (operation_type IN ('DEPOSIT', 'WITHDRAW'));

Как и ожидалось, не всё прошло гладко. Клод не добавил миграцию в databaseChangelogMaster (и даже не создал этот файл). Ну, с кем не бывает. Я тоже допустил ошибку в промпте: Клод сделал category_name nullable, а надо было category_description. Исправлять это я буду вручную.

Я хвалил Клода за уточняющие вопросы перед генерацией миграции, но, кажется, он мог запросить уточняющую информацию о планируемой работе с данными, что могло бы позволить заранее настроить индексы. Однако он этого не сделал, а я, в рамках эксперимента, решил "не знать" об индексах и игнорировать этот момент.

Настраиваем соединение с БД

Миграция готова, но прежде чем её запустить, нужно настроить соединение с базой данных. Просим Клода помочь.

Write the configuration to connect the application to the PostgreSQL database.
Ответ Клода

I'll help you configure the database connection. Let me write the configuration for both development and production environments using YAML format.

# src/main/resources/application.yml

spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/your_database_name
    username: your_username
    password: your_password
    driver-class-name: org.postgresql.Driver
  jpa:
    hibernate:
      ddl-auto: validate  # validates the schema, makes no changes to the database
    show-sql: false       # set to true if you want to see SQL queries in logs
    properties:
      hibernate:
        dialect: org.hibernate.dialect.PostgreSQLDialect
        format_sql: true  # formats SQL queries in logs if show-sql is true
  liquibase:
    change-log: classpath:db/changelog/db.changelog-master.yaml
    enabled: true        # enables Liquibase auto-deployment of changes

# Connection pool properties (using HikariCP - Spring Boot default)
    hikari:
      minimum-idle: 5
      maximum-pool-size: 20
      idle-timeout: 300000   # 5 minutes
      pool-name: HikariPool
      max-lifetime: 1200000  # 20 minutes
      connection-timeout: 20000 # 20 seconds

For different environments, you can create separate configuration files:

# src/main/resources/application-dev.yml
spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/dev_database
    username: dev_user
    password: dev_password
  jpa:
    show-sql: true

# src/main/resources/application-prod.yml
spring:
  datasource:
    url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
    username: ${DB_USERNAME}
    password: ${DB_PASSWORD}
  jpa:
    show-sql: false

Клод предложил настроить несколько профилей, что, возможно, избыточно на старте, но полезно для production-ready кода. Также он добавил базовый connection-pool и дал рекомендации по настройке продового окружения.

Но не обошлось без проблем: Клод неправильно объявил connection-pool в application.yaml, из-за чего Hikari не заработает. Ошибка не критическая, но и неочевидная — Spring просто выдаст предупреждение в логе при запуске. Такие баги самые неприятные, потому что они не приводят к явному падению, но могут сказаться на работе приложения позже.

Вывод: Всегда проверяйте настройки, предложенные ИИ. Он не гарантирует работоспособность кода.

Правильный вариант:

spring:  
  datasource:  
    url: jdbc:postgresql://localhost:5432/anthropic_claude?currentSchema=anthropic_claude  
    username: anthropic_claude_app  
    password: strongPassword  
    driver-class-name: org.postgresql.Driver  
    # Connection pool properties (using HikariCP - Spring Boot default)  
    hikari:  
      minimum-idle: 5  
      maximum-pool-size: 20  
      idle-timeout: 300000   # 5 minutes  
      pool-name: HikariPool  
      max-lifetime: 1200000  # 20 minutes  
      connection-timeout: 20000 # 20 seconds

Создаём init.sql и поднимаем БД в Docker

Следующий шаг — создание init.sql для удобства локальной разработки. Я попросил Клода создать файл с настройкой прав доступа.

Write init.sql with the following information:
  - Create an "app" role with a login password of 'strongPassword'.
  - Create a schema "my_app_schema" and authorize the "app" role to use it.
  - Grant all privileges to the "app" role on the "my_app_schema"
Ответ Клода

Here's the init.sql script that sets up the database role, schema, and permissions:

-- Create role with login capability
CREATE ROLE app WITH 
    LOGIN
    PASSWORD 'strongPassword'
    NOSUPERUSER
    INHERIT
    NOCREATEDB
    NOCREATEROLE
    NOREPLICATION;

-- Create schema
CREATE SCHEMA my_app_schema;

-- Grant usage on schema to app role
GRANT USAGE ON SCHEMA my_app_schema TO app;

-- Grant all privileges on all tables in schema to app role
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA my_app_schema TO app;

-- Grant all privileges on all sequences in schema to app role
GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA my_app_schema TO app;

-- Make sure new tables and sequences will be accessible by app role
ALTER DEFAULT PRIVILEGES IN SCHEMA my_app_schema 
    GRANT ALL PRIVILEGES ON TABLES TO app;
ALTER DEFAULT PRIVILEGES IN SCHEMA my_app_schema 
    GRANT ALL PRIVILEGES ON SEQUENCES TO app;

-- Set search path for the app role
ALTER ROLE app SET search_path TO my_app_schema;

Now you should update your application.yml to use this schema:

spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/your_database_name?currentSchema=my_app_schema
    username: app
    password: strongPassword

Клод сделал всё правильно: создал ограниченную роль для приложения и напомнил, что нужно обновить application.yaml. Это приятно.

Теперь нужно поднять PostgreSQL в Docker. Я решил не тратить время и написал docker-compose.yaml вручную:

version: '3.1'

services:
  anthropic-claude-db:
    container_name: anthropic-claude-postgres
    image: postgres:15
    restart: always
    environment:
      POSTGRES_USER: anthropic_claude_user
      POSTGRES_PASSWORD: strongUserPassword
      POSTGRES_DB: anthropic_claude
    volumes:
      - ./db-volume:/var/lib/postgresql
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
    ports:
      - "5432:5432"

Попробуем запустить.

Первая серьёзная ошибка

Ожидаемо, Liquibase не смог найти db.changelog-master.yaml (Liquibase failed to start because no changelog could be found at 'classpath:/db/changelog/db.changelog-master.yaml). Почему? Потому что Клод забыл его создать. Пишу ему об этом и прошу исправить.

When I start the application, I get an error. 
Liquibase failed to start because no changelog could be found at
'classpath:/db/changelog/db.changelog-master.yaml'.
Ответ Клода

You need to create the changelog directory structure and the master changelog file. Here's what you need to do:

Create the following directory structure in your project:

src/
└── main/
    └── resources/
        └── db/
            └── changelog/
                ├── db.changelog-master.yaml
                └── changes/
                    └── 001-initial-schema.yaml

Create the master changelog file (db.changelog-master.yaml):

databaseChangeLog:
  - include:
      file: changes/001-initial-schema.yaml
      relativeToChangelogFile: true

Move the migration we created earlier into 001-initial-schema.yaml under the changes directory.

Here's the full command sequence if you're using a Unix-like system:

mkdir -p src/main/resources/db/changelog/changes
touch src/main/resources/db/changelog/db.changelog-master.yaml
touch src/main/resources/db/changelog/changes/001-initial-schema.yaml

After creating these files and directories:

  1. Put the master changelog content into db.changelog-master.yaml

  2. Put the table creation changelog we created earlier into 001-initial-schema.yaml

Now when you start the application, Liquibase should be able to find and execute your changelog files.

Клод добавил db.changelog-master.yaml файл и даже предложил структуру хранения миграций. Однако теперь возникла новая проблема — ошибка доступа к схеме.

Клод начинает "мудрить"

Пытаемся вместе с Клодом решить эту проблему.

I've added a changelog to the master file, but when I run the application, a new error occurs: permission denied for schema anthropic_claude

Ответ Клода

This error means the 'app' role doesn't have sufficient permissions on the schema. Let's fix the permissions by running additional SQL commands as a superuser (postgres):

-- Connect as superuser (postgres) and run these commands:

-- Make sure the role and schema exist
CREATE ROLE app WITH LOGIN PASSWORD 'strongPassword' NOSUPERUSER INHERIT NOCREATEDB NOCREATEROLE NOREPLICATION;
CREATE SCHEMA IF NOT EXISTS my_app_schema;

-- Grant all necessary permissions
GRANT ALL ON SCHEMA my_app_schema TO app;
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA my_app_schema TO app;
GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA my_app_schema TO app;

-- This is important for Liquibase to be able to create new tables
ALTER DEFAULT PRIVILEGES IN SCHEMA my_app_schema GRANT ALL ON TABLES TO app;
ALTER DEFAULT PRIVILEGES IN SCHEMA my_app_schema GRANT ALL ON SEQUENCES TO app;

-- Make app the owner of the schema (optional, but can help avoid permission issues)
ALTER SCHEMA my_app_schema OWNER TO app;

-- Set the search path
SET search_path TO my_app_schema;
ALTER ROLE app SET search_path TO my_app_schema;

You can run these commands using psql or your preferred PostgreSQL client tool:

psql -U postgres -d your_database_name -f permissions.sql

After running these commands, restart your application and the permission error should be resolved.

Я уже не раз встречался с таким поведением: если LLM сталкивается с несколькими ошибками подряд, он начинает "фантазировать" и предлагать плохие решения. Причём каждое следующее исправление бывает хуже предыдущего. Это типичная проблема всех LLM — они не анализируют историю взаимодействия глобально, а просто пытаются найти ближайшее возможное исправление. Иногда каждое следующее исправление хуже предыдущего. В таких случаях лучше остановиться, пересмотреть ситуацию вручную и задать более конкретные инструкции.

Его предложенное исправление оказалось неверным. Я не стал его мучить и просто добавил фикс вручную:

CREATE SCHEMA my_schema_app AUTHORIZATION app;

После этого приложение запустилось без проблем.

Какие можно сделать выводы?

  • Чем больше ошибок, тем хуже становится выдача. LLM не анализирует всю историю взаимодействий, а просто пытается угадать следующее исправление.

  • Проверяйте настройки инфраструктуры. Ошибки могут быть незаметными, но критичными.

Первый ПР готов
https://github.com/nzinovev/anthropic-claude/pull/1

Создаём сущности

Приложение успешно запускается, таблицы созданы, миграции накатываются. Следующий шаг — создать сущности.

Кроме того, я попросил Клода предложить структуру пакетов, чтобы понимать, где хранить код.

Write entities for operation and category tables.
Provide a path to the package where I should create the entities.
Ответ Клода

Create these entities in the src/main/java/com/yourcompany/domain/entity package. Here are the entities:

// src/main/java/com/yourcompany/domain/entity/Category.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.util.Set;

@Entity
@Table(name = "category", schema = "my_app_schema")
@Getter
@Setter
public class Category {
    
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "name", nullable = false)
    private String name;

    @OneToMany(mappedBy = "category")
    private Set operations;
}
// src/main/java/com/yourcompany/domain/entity/Operation.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.math.BigDecimal;
import java.time.LocalDateTime;

@Entity
@Table(name = "operation", schema = "my_app_schema")
@Getter
@Setter
public class Operation {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "operation_type", nullable = false)
    @Enumerated(EnumType.STRING)
    private OperationType operationType;

    @Column(name = "amount", nullable = false)
    private BigDecimal amount;

    @Column(name = "description")
    private String description;

    @Column(name = "operation_date", nullable = false)
    private LocalDateTime operationDate;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "category_id", nullable = false)
    private Category category;
}
// src/main/java/com/yourcompany/domain/entity/OperationType.java

package com.yourcompany.domain.entity;

public enum OperationType {
    DEPOSIT,
    WITHDRAW
}

Make sure you have the following dependencies in your pom.xml:


    
        org.projectlombok
        lombok
        true
    
    
        org.springframework.boot
        spring-boot-starter-data-jpa
    

Directory structure should look like this:

src/
└── main/
    └── java/
        └── com/
            └── yourcompany/
                └── domain/
                    └── entity/
                        ├── Category.java
                        ├── Operation.java
                        └── OperationType.java

Ошибки в генерации сущностей

Первое, что заметил — Клод начал терять контекст:

  • В Category пропало поле description.

  • В Operation неожиданно появилось operationDate.

  • Он изменил названия колонок, из-за чего приложение перестало запускаться.

Пришлось вручную исправлять названия колонок. Далее буду добавлять недостающую информацию в контекст, чтобы избежать таких ошибок.

Проблема с equals() & hashCode()

Ещё одна ошибка — не переопределены equals() и hashCode().

Клод использует Set для Operation, что без корректного equals() может привести к дублированию одинаковых объектов с разными ссылками.

Я попросил его переопределить equals() и hashCode(), чтобы проверить, не добавит ли он в эти методы объекты OneToMany / ManyToOne и не создаст ли циклическую зависимость (что может привести к OutOfMemory).

Почему важно переопределять equals() и hashCode()?

  • Если этого не делать, объекты сравниваются по ссылке, что может привести к багам.

  • Lombok-аннотации @EqualsAndHashCode и @Data неявно переопределяют эти методы используя все имеющиеся свойства класса (например, могут учитывать связанные сущности, что приведёт к рекурсии).

  • Лучший вариант — переопределять вручную.

Прошу переопределить equals() & hashCode()

Override equals and hashCode for Category and Operation entites.
Ответ Клода

Here are the updated entities with equals and hashCode methods:

// src/main/java/com/yourcompany/domain/entity/Category.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.util.Set;
import java.util.Objects;

@Entity
@Table(name = "category", schema = "my_app_schema")
@Getter
@Setter
public class Category {
    
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "name", nullable = false)
    private String name;

    @OneToMany(mappedBy = "category")
    private Set operations;

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Category category = (Category) o;
        if (id == null || category.id == null) return false;
        return Objects.equals(id, category.id);
    }

    @Override
    public int hashCode() {
        return id != null ? id.hashCode() : 0;
    }
}
// src/main/java/com/yourcompany/domain/entity/Operation.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.Objects;

@Entity
@Table(name = "operation", schema = "my_app_schema")
@Getter
@Setter
public class Operation {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(name = "operation_type", nullable = false)
    @Enumerated(EnumType.STRING)
    private OperationType operationType;

    @Column(name = "amount", nullable = false)
    private BigDecimal amount;

    @Column(name = "description")
    private String description;

    @Column(name = "operation_date", nullable = false)
    private LocalDateTime operationDate;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "category_id", nullable = false)
    private Category category;

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Operation operation = (Operation) o;
        if (id == null || operation.id == null) return false;
        return Objects.equals(id, operation.id);
    }

    @Override
    public int hashCode() {
        return id != null ? id.hashCode() : 0;
    }
}

I've implemented equals and hashCode methods using the database identifier (id) field only. This is a common practice for JPA entities because:

  1. It provides consistent behavior with database identity

  2. It avoids issues with lazy loading

  3. It works well with collections and hibernate's first-level cache

  4. It prevents infinite recursion with bidirectional relationships

Note that the implementation:

  • Returns false if either object's ID is null

  • Only compares IDs when both objects are non-null and of the same class

  • Uses the ID field for hashCode calculation

Ошибки в реализации equals() и hashCode()

Клод почти справился, но есть нюансы:

  • Он избежал циклической зависимости и учёл ленивые загрузки. Однако есть две проблемы:

  • Использование hashCode = 0 для id = null, что может снизить производительность HashSet и HashMap, если там будет множество объектов с hashCode = 0.

  • Проверка классов через getClass(), т.к. в проекте используется Hibernate, сущности будут использоваться в прокси-объектах, следовательно, данный вызов может некорректно отрабатывать. Лучше использовать instanceof.

Исправленный вариант equals() и hashCode()

@Override  
public boolean equals(Object o) {  
    if (this == o) return true;  
    if (!(o instanceof Category category)) return false; // Лучше, чем getClass() для прокси объектов
    return id != null && id.equals(category.id); // Без дополнительной проверки id == null  
}  
  
@Override  
public int hashCode() {  
    return id != null ? id.hashCode() : super.hashCode(); // Использование super.hashCode() для уникальности несохранённых объектов
}

Ошибка с EAGER-загрузкой

Клод также по умолчанию сделал EAGER-связь между Category и Operation. На данном этапе это избыточно. Лучше следовать правилу: "Всегда LAZY, если нет необходимости в EAGER".

PR с исправлениями
https://github.com/nzinovev/anthropic-claude/pull/2
https://github.com/nzinovev/anthropic-claude/pull/3

Сущности готовы, следующий этап — создание CRUD-операций.

Пробуем CRUD. Часть 1 (неудачно)

Я рискнул и попросил Клода сразу создать полный цикл для операции CREATEконтроллер → сервис → DAO. Если всё пройдёт гладко, таким же способом реализую и остальные операции (READ, UPDATE, DELETE).

Я не уточнял, какую DTO использовать на вход и выход, чтобы проверить, поймёт ли это Клод самостоятельно или будет работать с сущностями в контроллере.

Чтобы избежать усложнения задачи, я сразу уточнил, что валидация полей не нужна – иначе Клод может потерять фокус и ухудшить качество выдачи.

Ошибка в промпте: мы с Клодом не поняли друг друга

Write a logic for the Operation entity (Controller - Service - DAO). 
In the first iteration, skip validation of all fields.

Что пошло не так? Практически всё.

Я не добавил слово CREATE, а Клод не стал уточнять детали.
В результате он сгенерировал весь CRUD (включая READ, UPDATE, DELETE) – с ошибками.

Исправлять этот код дальше будет неудобно. Легче делать всё шаг за шагом. Именно поэтому я просил Клода не добавлять валидацию – чтобы не перегружать контекст.

Придётся очистить контекст и перезапустить задачу. Покажу, как это сделать без потери истории.

Но сначала разберём ошибки в коде.

Разбор кода Клода

Ответ Клода

I'll create a complete operation management logic layer by layer. Here's the implementation:

// src/main/java/com/yourcompany/dao/OperationRepository.java

package com.yourcompany.dao;

import com.yourcompany.domain.entity.Operation;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface OperationRepository extends JpaRepository {
}
// src/main/java/com/yourcompany/service/OperationService.java

package com.yourcompany.service;

import com.yourcompany.domain.entity.Operation;
import java.util.List;

public interface OperationService {
    Operation createOperation(Operation operation);
    Operation getOperation(Long id);
    List getAllOperations();
    Operation updateOperation(Long id, Operation operation);
    void deleteOperation(Long id);
}
// src/main/java/com/yourcompany/service/impl/OperationServiceImpl.java

package com.yourcompany.service.impl;

import com.yourcompany.dao.OperationRepository;
import com.yourcompany.domain.entity.Operation;
import com.yourcompany.service.OperationService;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@RequiredArgsConstructor
public class OperationServiceImpl implements OperationService {

    private final OperationRepository operationRepository;

    @Override
    @Transactional
    public Operation createOperation(Operation operation) {
        return operationRepository.save(operation);
    }

    @Override
    @Transactional(readOnly = true)
    public Operation getOperation(Long id) {
        return operationRepository.findById(id)
                .orElseThrow(() -&gt; new RuntimeException("Operation not found"));
    }

    @Override
    @Transactional(readOnly = true)
    public List getAllOperations() {
        return operationRepository.findAll();
    }

    @Override
    @Transactional
    public Operation updateOperation(Long id, Operation operation) {
        Operation existingOperation = getOperation(id);
        
        existingOperation.setOperationType(operation.getOperationType());
        existingOperation.setAmount(operation.getAmount());
        existingOperation.setDescription(operation.getDescription());
        existingOperation.setOperationDate(operation.getOperationDate());
        existingOperation.setCategory(operation.getCategory());

        return operationRepository.save(existingOperation);
    }

    @Override
    @Transactional
    public void deleteOperation(Long id) {
        operationRepository.deleteById(id);
    }
}
// src/main/java/com/yourcompany/dto/OperationDto.java

package com.yourcompany.dto;

import com.yourcompany.domain.entity.OperationType;
import lombok.Data;
import java.math.BigDecimal;
import java.time.LocalDateTime;

@Data
public class OperationDto {
    private Long id;
    private OperationType operationType;
    private BigDecimal amount;
    private String description;
    private LocalDateTime operationDate;
    private Long categoryId;
}
// src/main/java/com/yourcompany/mapper/OperationMapper.java

package com.yourcompany.mapper;

import com.yourcompany.domain.entity.Operation;
import com.yourcompany.dto.OperationDto;
import org.springframework.stereotype.Component;

@Component
public class OperationMapper {
    
    public OperationDto toDto(Operation operation) {
        OperationDto dto = new OperationDto();
        dto.setId(operation.getId());
        dto.setOperationType(operation.getOperationType());
        dto.setAmount(operation.getAmount());
        dto.setDescription(operation.getDescription());
        dto.setOperationDate(operation.getOperationDate());
        dto.setCategoryId(operation.getCategory().getId());
        return dto;
    }

    public Operation toEntity(OperationDto dto) {
        Operation operation = new Operation();
        operation.setOperationType(dto.getOperationType());
        operation.setAmount(dto.getAmount());
        operation.setDescription(dto.getDescription());
        operation.setOperationDate(dto.getOperationDate());
        return operation;
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java

package com.yourcompany.controller;

import com.yourcompany.domain.entity.Operation;
import com.yourcompany.dto.OperationDto;
import com.yourcompany.mapper.OperationMapper;
import com.yourcompany.service.CategoryService;
import com.yourcompany.service.OperationService;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/api/operations")
@RequiredArgsConstructor
public class OperationController {

    private final OperationService operationService;
    private final CategoryService categoryService;
    private final OperationMapper operationMapper;

    @PostMapping
    public ResponseEntity createOperation(@RequestBody OperationDto operationDto) {
        Operation operation = operationMapper.toEntity(operationDto);
        operation.setCategory(categoryService.getCategory(operationDto.getCategoryId()));
        
        Operation savedOperation = operationService.createOperation(operation);
        return ResponseEntity.ok(operationMapper.toDto(savedOperation));
    }

    @GetMapping("/{id}")
    public ResponseEntity getOperation(@PathVariable Long id) {
        Operation operation = operationService.getOperation(id);
        return ResponseEntity.ok(operationMapper.toDto(operation));
    }

    @GetMapping
    public ResponseEntity&gt; getAllOperations() {
        List operations = operationService.getAllOperations()
                .stream()
                .map(operationMapper::toDto)
                .collect(Collectors.toList());
        return ResponseEntity.ok(operations);
    }

    @PutMapping("/{id}")
    public ResponseEntity updateOperation(
            @PathVariable Long id,
            @RequestBody OperationDto operationDto) {
        Operation operation = operationMapper.toEntity(operationDto);
        operation.setCategory(categoryService.getCategory(operationDto.getCategoryId()));
        
        Operation updatedOperation = operationService.updateOperation(id, operation);
        return ResponseEntity.ok(operationMapper.toDto(updatedOperation));
    }

    @DeleteMapping("/{id}")
    public ResponseEntity deleteOperation(@PathVariable Long id) {
        operationService.deleteOperation(id);
        return ResponseEntity.noContent().build();
    }
}

Note that this implementation assumes you have a CategoryService with a getCategory(Long id) method. You'll need to implement that as well.

The directory structure should look like this:

src/
└── main/
    └── java/
        └── com/
            └── yourcompany/
                ├── controller/
                │   └── OperationController.java
                ├── dao/
                │   └── OperationRepository.java
                ├── dto/
                │   └── OperationDto.java
                ├── mapper/
                │   └── OperationMapper.java
                └── service/
                    ├── OperationService.java
                    └── impl/
                        └── OperationServiceImpl.java

Что Клод сделал хорошо:

  • Корректно расставил @Transactional – разделил readOnly-транзакции и полноценные.

  • Добавил DTO – не вернул наружу сущность.

  • Указал структуру проекта – значит, часть контекста сохранилась.

  • Предложил дальнейшие шаги.

Что Клод сделал плохо:

  • Сущность "просочилась" в контроллер – маппинг в DTO происходит на уровне контроллера (вне транзакции), что может вызвать LazyInitializationException.

    • Сейчас ошибки не будет (мы берём только id категории), но это ещё хуже – создаётся ложное ощущение, что всё работает правильно.

  • Не уточнил, какие поля должны быть в DTO.

    • Из-за этого он вытянул categoryId наружу, хотя это не критично.

  • Ошибся с @Transactional.

    • Я явно указал DAO-слой, но Клод повесил @Transactional на сервис.

    • Это проблема, потому что бизнес-логика (сервис) может вызывать сторонние API – и в таком варианте всё это будет выполняться внутри транзакции, что неэффективно.

Можно ли исправить эти ошибки позднее? Конечно. Но если сделать сразу правильно, это сэкономит много времени в будущем.

Почему я очищаю контекст

Когда LLM изменяет большой кусок кода, он часто редактирует даже те части, которые не нужно трогать.

Это приводит к:

  • "Захламлению" контекста

  • Порче логики даже в тех местах, где её не нужно менять

  • Ухудшению качества последующих ответов

Поэтому проще очистить контекст и задать задачу заново. Я задам новый промпт и поправлю выдачу Клода, чтобы избежать ошибок.

Этот подход показывает, что важно разбивать сложные задачи на этапы.
Очистка контекста – полезный инструмент, если модель начала терять логику.

Дальше попробую создать CREATE-операцию по шагам, чтобы минимизировать ошибки.

Пробуем CRUD. Часть 2

Отчищаем контекст и задаём промпт с историей

Подготавливаю новый промпт с историей взаимодействия:

Скрытый текст

You will be acting as a backend developer. You are have an expertise in the following technologies: Java 21+, Spring boot, Spring JPA, Hibernate, Lombok, Spring Web, REST API, SQL. Your goal is to create a production-ready solution for the user and answer their questions. You should clarify questions to provide the best possible answer. If you have any questions, ask them first without providing a solution. Only after all questions have been clarified, you provide a solution for the user.

You should maintain a friendly and professional tone.

Here are some important rules of conduct:
- If you're not sure how to respond, say: "Sorry, I didn't understand you. Could you please rephrase your question, please?"
- If you don't know the answer to a question, say: "I am sorry, but I don't know that answer. Can you please clarify your question for me?"

Here is the history (between you and user) before the question:

<history>
user: "I have already created an application using Spring Initializr with the following dependencies: Lombok, Spring Web, Spring Data JPA, PostgreSQL Driver, Liquibase Migration. Write a Liquibase migration for the tables.
<table1>
Category table with columns: category_id (bigint), category_name (varchar), category_description (varchar)
</table1>
<table2>
Operation table with columns: operation_id (bigint), operation_public_id (varchar), operation_name (varchar), operation_amount(bigdecimal), operation_type (enum), category_id (FK to category table)
</table2>

Suggest how to store the operation_type. In the code, the operation type will be an Enum with the values (DEPOSIT, WITHDRAW)."

You: "Let me analyze your requirements:

  1. Database Structure:

    • Two tables: Category and Operation

    • Category is the parent table with a primary key referenced by Operation

    • Operation has an enum field operation_type

  2. Questions for clarification:

    1. Should category_id in both tables be auto-incrementing?

    2. What should be the maximum lengths for varchar fields (category_name, category_description, operation_public_id, operation_name)?

    3. Should any of these fields be nullable?

    4. For operation_amount, how many digits before and after decimal point do you need?

    5. Should operation_public_id be unique?

Before I provide the Liquibase migration script, please answer these questions so I can create the most appropriate solution for your needs.

Regarding the operation_type storage, I suggest two approaches:

  1. As a VARCHAR field with a check constraint limiting values to 'DEPOSIT' and 'WITHDRAW'

  2. As a custom ENUM type in PostgreSQL

The first approach is generally more flexible for future modifications and better portable across different databases. Would you like me to proceed with this approach, or would you prefer the PostgreSQL ENUM type?

Please provide your preferences so I can create a complete migration script."

user: "1. Correct

  1. Questions for clarification:

    1. Yes, category_id and operation_id should be auto-incremented

    2. For category_name, operation_public_id and operation_name - varchar(255), and for category_description (varchar 1000)

    3. Nullable fields: category_description

    4. 20 digits before decimal point and 2 after

    5. Yes

Regarding the operation_type, let's take the first approach."

you: "Thank you for the clarification. I'll create a Liquibase migration script that meets all these requirements.

databaseChangeLog:
  - changeSet:
      id: 001_create_category_table
      author: developer
      changes:
        - createTable:
            tableName: category
            columns:
              - column:
                  name: category_id
                  type: bigint
                  constraints:
                    primaryKey: true
                    nullable: false
              - column:
                  name: category_name
                  type: varchar(255)
                  constraints:
                    nullable: false
              - column:
                  name: category_description
                  type: varchar(1000)
                  constraints:
                    nullable: true
        - addAutoIncrement:
            tableName: category
            columnName: category_id
            columnDataType: bigint
            startWith: 1
            incrementBy: 1

  - changeSet:
      id: 002_create_operation_table
      author: developer
      changes:
        - createTable:
            tableName: operation
            columns:
              - column:
                  name: operation_id
                  type: bigint
                  constraints:
                    primaryKey: true
                    nullable: false
              - column:
                  name: operation_public_id
                  type: varchar(255)
                  constraints:
                    nullable: false
                    unique: true
              - column:
                  name: operation_name
                  type: varchar(255)
                  constraints:
                    nullable: false
              - column:
                  name: operation_amount
                  type: decimal(22,2)
                  constraints:
                    nullable: false
              - column:
                  name: operation_type
                  type: varchar(255)
                  constraints:
                    nullable: false
              - column:
                  name: category_id
                  type: bigint
                  constraints:
                    nullable: false
                    foreignKeyName: fk_operation_category
                    references: category(category_id)
        - addAutoIncrement:
            tableName: operation
            columnName: operation_id
            columnDataType: bigint
            startWith: 1
            incrementBy: 1

  - changeSet:
      id: 003_add_operation_type_constraint
      author: developer
      changes:
        - sql:
            sql: ALTER TABLE operation ADD CONSTRAINT check_operation_type CHECK (operation_type IN ('DEPOSIT', 'WITHDRAW'));

Would you like me to explain the different parts of this migration script?"
user: "Write the configuration to connect the application to the PostgreSQL database."

you: "I'll help you configure the database connection. Let me write the configuration for both development and production environments using YAML format.

# src/main/resources/application.yml

spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/your_database_name
    username: your_username
    password: your_password
    driver-class-name: org.postgresql.Driver
  jpa:
    hibernate:
      ddl-auto: validate  # validates the schema, makes no changes to the database
    show-sql: false       # set to true if you want to see SQL queries in logs
    properties:
      hibernate:
        dialect: org.hibernate.dialect.PostgreSQLDialect
        format_sql: true  # formats SQL queries in logs if show-sql is true
  liquibase:
    change-log: classpath:db/changelog/db.changelog-master.yaml
    enabled: true        # enables Liquibase auto-deployment of changes

# Connection pool properties (using HikariCP - Spring Boot default)
    hikari:
      minimum-idle: 5
      maximum-pool-size: 20
      idle-timeout: 300000   # 5 minutes
      pool-name: HikariPool
      max-lifetime: 1200000  # 20 minutes
      connection-timeout: 20000 # 20 seconds

For different environments, you can create separate configuration files:

# src/main/resources/application-dev.yml
spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/dev_database
    username: dev_user
    password: dev_password
  jpa:
    show-sql: true

# src/main/resources/application-prod.yml
spring:
  datasource:
    url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
    username: ${DB_USERNAME}
    password: ${DB_PASSWORD}
  jpa:
    show-sql: false

To use these profiles, you can:

  1. Add in your main application.yml:

spring:
  profiles:
    active: dev  # or prod
  1. Or set it via command line:

java -jar your-app.jar --spring.profiles.active=dev
  1. Or set it via environment variable:

export SPRING_PROFILES_ACTIVE=dev

For production environment, it's recommended to:

  1. Use environment variables for sensitive data

  2. Never commit real credentials to version control

  3. Use strong passwords

  4. Consider using connection encryption (SSL)

Would you like me to explain any part of this configuration in more detail?"

user: "Write entities for operation and category tables. Provide a path to the package where I should create the entities."

you: "Create these entities in the src/main/java/com/yourcompany/domain/entity package. Here are the entities:

// src/main/java/com/yourcompany/domain/entity/Category.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.util.Set;

@Entity
@Table(name = "category", schema = "my_app_schema")
@Getter
@Setter
public class Category {  
  
    @Id  
    @Column(name = "category_id")  
    @GeneratedValue(strategy = GenerationType.IDENTITY)  
    private Long id;  
  
    @Column(name = "category_name", nullable = false)  
    private String name;  
  
    @Column(name = "category_description")  
    private String description;  
  
    @OneToMany(mappedBy = "category", fetch = FetchType.LAZY)  
    private Set operations;  
  
    @Override  
    public boolean equals(Object o) {  
        if (this == o) return true;  
        if (!(o instanceof Category category)) return false;
        return id != null &amp;&amp; id.equals(category.id); 
    }  
  
    @Override  
    public int hashCode() {  
        return id != null ? id.hashCode() : super.hashCode();
    }  
}
// src/main/java/com/yourcompany/domain/entity/Operation.java

package com.yourcompany.domain.entity;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.math.BigDecimal;
import java.time.LocalDateTime;

@Entity
@Table(name = "operation", schema = "my_app_schema")
@Getter
@Setter
public class Operation {  
  
    @Id  
    @Column(name = "operation_id")  
    @GeneratedValue(strategy = GenerationType.IDENTITY)  
    private Long id;  
  
    @Column(name = "operation_public_id", nullable = false, unique = true)  
    private String publicId;  
  
    @Column(name = "operation_name", nullable = false)  
    private String name;  
  
    @Column(name = "operation_type", nullable = false)  
    @Enumerated(EnumType.STRING)  
    private OperationType type;  
  
    @Column(name = "operation_amount", nullable = false)  
    private BigDecimal amount;  
  
    @ManyToOne(fetch = FetchType.LAZY)  
    @JoinColumn(name = "category_id", nullable = false)  
    private Category category;  
  
    @Override  
    public boolean equals(Object o) {  
        if (this == o) return true;  
        if (!(o instanceof Operation operation)) return false;  
        return id != null &amp;&amp; id.equals(operation.id);  
    }  
  
    @Override  
    public int hashCode() {  
        return id != null ? id.hashCode() : super.hashCode();  
    }  
}
// src/main/java/com/yourcompany/domain/entity/OperationType.java

package com.yourcompany.domain.entity;

public enum OperationType {
    DEPOSIT,
    WITHDRAW
}

Make sure you have the following dependencies in your pom.xml:

<dependencies>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
</dependencies>

Directory structure should look like this:

src/
└── main/
    └── java/
        └── com/
            └── yourcompany/
                └── domain/
                    └── entity/
                        ├── Category.java
                        ├── Operation.java
                        └── OperationType.java

Would you like me to explain any part of these entities or their relationships?"
</history>
Here is the user question:

<question>
Write a CREATE logic for the Operation entity (Controller - Service - DAO). In the first iteration, skip validation of all fields.
</question>

Think about the answer first before responding. Think step-by-step.

Пришлось два раза переписывать промпт — из-за ошибок в формулировке.

В первый раз Клод уточнял детали, и код получился чуть качественнее, но здесь я разберу второй вариант, так как именно он был отправлен в работу.

Сброс контекста и обновление промпта помогают ИИ вспомнить начальные установки.

Это один из способов повысить точность ответа, но у него есть минус — такой подход требует больше времени, так как приходится собирать историю общения с моделью (тег <history> в промпте).

Я советую использовать теги <history></history> только в двух случаях:

  1. ИИ зашёл в тупик и выдаёт некорректные решения.

  2. Были ошибки в промпте и хочется избавиться от ошибок.

Преимущество этого метода — возможность редактировать историю общения, а также восстановление изначальных требований по взаимодействию модели с пользователем, что в конечном счёте улучшает итоговый результат.

Ответ Клода

Thank you for the clarification. I'll create a complete solution for the operation creation logic.

// src/main/java/com/yourcompany/dto/request/CreateOperationRequest.java
package com.yourcompany.dto.request;

import lombok.Data;
import java.math.BigDecimal;

@Data
public class CreateOperationRequest {
    private String operationName;
    private String operationType;
    private BigDecimal amount;
    private String categoryName;
}
// src/main/java/com/yourcompany/dto/response/OperationDto.java
package com.yourcompany.dto.response;

import lombok.Data;
import java.math.BigDecimal;

@Data
public class OperationDto {
    private String operationPublicId;
    private String operationName;
    private String operationType;
    private BigDecimal amount;
    private String categoryName;
}
// src/main/java/com/yourcompany/mapper/OperationMapper.java
package com.yourcompany.mapper;

import com.yourcompany.domain.entity.Operation;
import com.yourcompany.dto.response.OperationDto;
import org.springframework.stereotype.Component;

@Component
public class OperationMapper {
    
    public OperationDto toDto(Operation operation) {
        OperationDto dto = new OperationDto();
        dto.setOperationPublicId(operation.getOperationPublicId());
        dto.setOperationName(operation.getOperationName());
        dto.setOperationType(operation.getOperationType().name());
        dto.setAmount(operation.getAmount());
        dto.setCategoryName(operation.getCategory().getName());
        return dto;
    }
}
// src/main/java/com/yourcompany/repository/OperationRepository.java
package com.yourcompany.repository;

import com.yourcompany.domain.entity.Operation;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface OperationRepository extends JpaRepository {
}
// src/main/java/com/yourcompany/repository/CategoryRepository.java
package com.yourcompany.repository;

import com.yourcompany.domain.entity.Category;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import java.util.Optional;

@Repository
public interface CategoryRepository extends JpaRepository {
    Optional findByName(String name);
}
// src/main/java/com/yourcompany/service/OperationService.java
package com.yourcompany.service;

import com.yourcompany.domain.entity.Category;
import com.yourcompany.domain.entity.Operation;
import com.yourcompany.domain.entity.OperationType;
import com.yourcompany.dto.request.CreateOperationRequest;
import com.yourcompany.dto.response.OperationDto;
import com.yourcompany.mapper.OperationMapper;
import com.yourcompany.repository.CategoryRepository;
import com.yourcompany.repository.OperationRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.server.ResponseStatusException;
import java.util.UUID;

@Service
@RequiredArgsConstructor
public class OperationService {

    private final OperationRepository operationRepository;
    private final CategoryRepository categoryRepository;
    private final OperationMapper operationMapper;

    @Transactional
    public OperationDto createOperation(CreateOperationRequest request) {
        Category category = categoryRepository.findByName(request.getCategoryName())
            .orElseThrow(() -&gt; new ResponseStatusException(HttpStatus.NOT_FOUND, 
                "Category not found: " + request.getCategoryName()));

        Operation operation = new Operation();
        operation.setOperationPublicId(UUID.randomUUID().toString());
        operation.setOperationName(request.getOperationName());
        operation.setOperationType(OperationType.valueOf(request.getOperationType()));
        operation.setAmount(request.getAmount());
        operation.setCategory(category);

        Operation savedOperation = operationRepository.save(operation);
        return operationMapper.toDto(savedOperation);
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java
package com.yourcompany.controller;

import com.yourcompany.dto.request.CreateOperationRequest;
import com.yourcompany.dto.response.OperationDto;
import com.yourcompany.service.OperationService;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {

    private final OperationService operationService;

    @PostMapping
    public ResponseEntity createOperation(@RequestBody CreateOperationRequest request) {
        OperationDto response = operationService.createOperation(request);
        return ResponseEntity.ok(response);
    }
}

Что получилось лучше по сравнению с первой попыткой

Ограничение задачи позволило Клоду улучшить качество кода:

  • Теперь сервис не возвращает сущность в контроллер.

  • Код стал чище, а выдача качественнее.

  • Добавлены простейшие бизнес-обработки.

Но не обошлось без недостатков - Нет @JsonProperty в DTO. Наличие этой аннотации делает безопасным изменения полей DTO в коде без влияния на API-контракт.

Тестируем работоспособность

Отправляем запрос:

{
    "name": "Заправка",
    "amount": 125.23,
    "type": "WITHDRAW",
    "categoryId": 1
}

Получаем ответ:

{
	"publicId":"31cf0666-38b6-4aa3-9c6d-2547fe15e237",
	 "name":"Заправка",
	 "amount":125.23,
	 "type":"WITHDRAW",
	 "categoryId":1
}

Выбираем стратегию для остальных CRUD-операций

Я попробовал два подхода:

  1. Создание всех CRUD-операций сразу.

  2. Создание каждой операции по отдельности.

Второй вариант оказался качественнее, поэтому по нему будут реализованы READ, UPDATE, DELETE.

PR на создание операции
https://github.com/nzinovev/anthropic-claude/pull/5/files

Реализуем UPDATE-логику для операций

Write an UPDATE logic for the Operation entity (Controller - Service - DAO). 
In the first iteration, skip validation of all fields.
Ответ Клода

Let me design the UPDATE logic step by step:

  1. Components needed:

    • Controller endpoint for PUT/PATCH request

    • Service method for update logic

    • DTO for update request

    • Mapper update method

  2. Flow:

    • Find operation by publicId (more secure than using internal ID)

    • Update only provided fields

    • Return updated operation

Here's the implementation:

// src/main/java/com/yourcompany/dto/OperationUpdateRequest.java

package com.yourcompany.dto;

import com.yourcompany.domain.entity.OperationType;
import lombok.Data;
import java.math.BigDecimal;

@Data
public class OperationUpdateRequest {
    private String name;
    private BigDecimal amount;
    private OperationType type;
    private Long categoryId;
}
// src/main/java/com/yourcompany/mapper/OperationMapper.java
// Add this method to the existing OperationMapper class

package com.yourcompany.mapper;

public class OperationMapper {
    // ... existing methods ...

    public void updateEntityFromDto(OperationUpdateRequest request, Operation operation) {
        if (request.getName() != null) {
            operation.setName(request.getName());
        }
        if (request.getAmount() != null) {
            operation.setAmount(request.getAmount());
        }
        if (request.getType() != null) {
            operation.setType(request.getType());
        }
    }
}
// src/main/java/com/yourcompany/repository/OperationRepository.java
// Add this method to the existing OperationRepository interface

package com.yourcompany.repository;

public interface OperationRepository extends JpaRepository {
    Optional findByPublicId(String publicId);
}
// src/main/java/com/yourcompany/service/OperationService.java
// Add these methods to the existing OperationService class

package com.yourcompany.service;

@Service
@RequiredArgsConstructor
public class OperationService {
    // ... existing methods ...

    @Transactional
    public OperationResponse updateOperation(String publicId, OperationUpdateRequest request) {
        Operation operation = operationRepository.findByPublicId(publicId)
            .orElseThrow(() -&gt; new RuntimeException("Operation not found"));

        operationMapper.updateEntityFromDto(request, operation);

        if (request.getCategoryId() != null) {
            Category category = categoryRepository.getReferenceById(request.getCategoryId());
            operation.setCategory(category);
        }

        Operation updatedOperation = operationRepository.save(operation);
        return operationMapper.toDto(updatedOperation);
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java
// Add this method to the existing OperationController class

package com.yourcompany.controller;

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {
    // ... existing methods ...

    @PutMapping("/{publicId}")
    public OperationResponse updateOperation(
            @PathVariable String publicId,
            @RequestBody OperationUpdateRequest request) {
        return operationService.updateOperation(publicId, request);
    }
}
// src/main/java/com/yourcompany/exception/OperationNotFoundException.java

package com.yourcompany.exception;

import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ResponseStatus;

@ResponseStatus(HttpStatus.NOT_FOUND)
public class OperationNotFoundException extends RuntimeException {
    public OperationNotFoundException(String message) {
        super(message);
    }
}

Now you can update an operation by making a PUT request to /api/v1/operations/{publicId} with a JSON body containing the fields you want to update. For example:

{
    "name": "Updated Operation Name",
    "amount": 150.00,
    "type": "DEPOSIT",
    "categoryId": 2
}

OperationMapper.updateEntityFromDto — что это вообще?

Клод добавил какую-то странную конструкцию:

operationMapper.updateEntityFromDto(operation, dto);

Звучит логично, но есть несколько проблем:

  • Вынес в маппер логику, которая к нему не относится.

  • Разделил её по разным слоям: три параметра проставляются в маппере, а один — в сервисе.

Это плохой дизайн, потому что маппер должен просто преобразовывать DTO в сущность и обратно, а не вносить изменения в объект.

OperationNotFoundException, но... не совсем

Клод добавил кастомное исключение:

public class OperationNotFoundException extends RuntimeException { ... }

На первый взгляд, всё правильно, но есть один нюанс — он его нигде не использует!

Там, где должно было бросаться OperationNotFoundException, Клод выбрасывает обычный RuntimeException. В итоге, хорошая идея, но не реализованная до конца.

Проблема с обработкой NotFound ошибок

Далее будут появятся другие исключения в том же стиле (например CategoryNotFoundException). В итоге каждое исключение будет уникальным — это усложнит поддержку. Лучше сделать одно NotFoundException, а при необходимости — наследовать от него:

public class NotFoundException extends RuntimeException {
    public NotFoundException(String message) {
        super(message);
    }
}

А затем:

public class OperationNotFoundException extends NotFoundException {
    public OperationNotFoundException() {
        super("Operation not found");
    }
}

Такой подход даёт два преимущества:

  1. Единый ExceptionHandler – можно обрабатывать NotFoundException, а не кучу отдельных классов.

  2. Чище код – если появится новый тип NotFound, его не нужно будет добавлять в обработчик.

Несмотря на эти проблемы, Клод справился с задачей. Код рабочий, даже был предложен тестовый JSON для проверки.

Теперь переходим к поиску операций (READ).

PR на обновление операции
https://github.com/nzinovev/anthropic-claude/pull/6

Реализуем READ-логику для операций

Попросил Клода создать два эндпоинта:

  1. Получение всех операций с пагинацией.

  2. Поиск операции по publicId.

Write a FIND logic for the Operation entity (Controller - Service - DAO). 
In the first iteration, skip validation of all fields. 
You need to add two endpoints, the first one that finds all operations with pagination, 
and the second one that finds an operation by publicId.
Ответ Клода

Let me design the FIND logic step by step:

  1. Components needed:

    • Controller endpoints for GET requests (findAll with pagination and findByPublicId)

    • Service methods for both operations

    • Repository method for finding by publicId (already exists)

    • DTO for pagination criteria (optional parameters like page, size, sort)

  2. Flow:

    • Accept pagination parameters

    • Convert Page to Page

    • Return paginated response or single operation

Here's the implementation:

// src/main/java/com/yourcompany/dto/PageResponse.java

package com.yourcompany.dto;

import lombok.Data;
import org.springframework.data.domain.Page;
import java.util.List;

@Data
public class PageResponse {
    private List content;
    private int pageNumber;
    private int pageSize;
    private long totalElements;
    private int totalPages;
    private boolean last;
    
    public static  PageResponse from(Page page) {
        PageResponse response = new PageResponse&lt;&gt;();
        response.setContent(page.getContent());
        response.setPageNumber(page.getNumber());
        response.setPageSize(page.getSize());
        response.setTotalElements(page.getTotalElements());
        response.setTotalPages(page.getTotalPages());
        response.setLast(page.isLast());
        return response;
    }
}
// src/main/java/com/yourcompany/service/OperationService.java
// Add these methods to the existing OperationService class

package com.yourcompany.service;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

@Service
@RequiredArgsConstructor
public class OperationService {
    // ... existing methods ...

    @Transactional(readOnly = true)
    public PageResponse findAll(Pageable pageable) {
        Page operationPage = operationRepository.findAll(pageable);
        Page responsePage = operationPage.map(operationMapper::toDto);
        return PageResponse.from(responsePage);
    }

    @Transactional(readOnly = true)
    public OperationResponse findByPublicId(String publicId) {
        Operation operation = operationRepository.findByPublicId(publicId)
            .orElseThrow(() -&gt; new OperationNotFoundException(
                String.format("Operation with publicId %s not found", publicId)));
        return operationMapper.toDto(operation);
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java
// Add these methods to the existing OperationController class

package com.yourcompany.controller;

import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {
    // ... existing methods ...

    @GetMapping
    public PageResponse findAll(
            @RequestParam(defaultValue = "0") int page,
            @RequestParam(defaultValue = "20") int size,
            @RequestParam(defaultValue = "operation_id") String sortBy,
            @RequestParam(defaultValue = "DESC") Sort.Direction direction) {
        
        PageRequest pageRequest = PageRequest.of(
            page,
            size,
            Sort.by(direction, sortBy)
        );
        
        return operationService.findAll(pageRequest);
    }

    @GetMapping("/{publicId}")
    public OperationResponse findByPublicId(@PathVariable String publicId) {
        return operationService.findByPublicId(publicId);
    }
}

Now you can:

  1. Get a paginated list of operations:

GET /api/v1/operations?page=0&amp;size=20&amp;sortBy=operation_id&amp;direction=DESC

Response example:

{
    "content": [
        {
            "publicId": "550e8400-e29b-41d4-a716-446655440000",
            "name": "Operation 1",
            "amount": 100.00,
            "type": "DEPOSIT",
            "categoryId": 1
        },
        // ... more operations
    ],
    "pageNumber": 0,
    "pageSize": 20,
    "totalElements": 100,
    "totalPages": 5,
    "last": false
}
  1. Get a single operation by publicId:

GET /api/v1/operations/550e8400-e29b-41d4-a716-446655440000

Response example:

{
    "publicId": "550e8400-e29b-41d4-a716-446655440000",
    "name": "Operation 1",
    "amount": 100.00,
    "type": "DEPOSIT",
    "categoryId": 1
}

Как Клод реализовал задачу?

Клод использовал пагинацию Spring JPA, что логично, так как мы работаем с Hibernate.

Код получился почти идеальным:

  • PageResponse сделан дженериком – можно переиспользовать для любых ответов.

  • Контекст сохраняется – Клод не дублирует уже написанный код.

Минусы реализации

Проблема с sortBy — Клод ссылается на колонку в БД, а не на поле сущности. В таком виде сортировка не будет работать, т.к. JPA для сортировки использует именно название полей сущности.

Spring Data JPA использует рефлексию для работы с сущностями. Когда мы передаем параметр сортировки sortBy, Spring Data JPA пытается найти соответствующее поле по имени внутри класса сущности. JPA ищет свойство (field) внутри Java-класса Operation, а не колонку в базе данных.

Исправляем и переходим к DELETE.

PR на поиск операций
https://github.com/nzinovev/anthropic-claude/pull/7

DELETE – логика для операций

Финальная часть CRUD-операций – удаление. Прошу Клода написать эндпоинт, который удаляет операцию по publicId.

Write a DELETE logic for the Operation entity (Controller - Service - DAO). 
In the first iteration, skip validation of all fields.
Ответ Клода

Let me design the DELETE logic step by step:

  1. Components needed:

    • Controller endpoint for DELETE request

    • Service method for delete operation

    • Repository method (will use existing findByPublicId)

  2. Flow:

    • Find operation by publicId

    • Delete operation if exists

    • Return appropriate response status

Here's the implementation:

// src/main/java/com/yourcompany/service/OperationService.java
// Add this method to the existing OperationService class

package com.yourcompany.service;

@Service
@RequiredArgsConstructor
public class OperationService {
    // ... existing methods ...

    @Transactional
    public void deleteOperation(String publicId) {
        Operation operation = operationRepository.findByPublicId(publicId)
            .orElseThrow(() -> new OperationNotFoundException(
                String.format("Operation with publicId %s not found", publicId)));
            
        operationRepository.delete(operation);
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java
// Add this method to the existing OperationController class

package com.yourcompany.controller;

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {
    // ... existing methods ...

    @DeleteMapping("/{publicId}")
    @ResponseStatus(HttpStatus.NO_CONTENT)
    public void deleteOperation(@PathVariable String publicId) {
        operationService.deleteOperation(publicId);
    }
}

Now you can delete an operation by making a DELETE request to:

DELETE /api/v1/operations/{publicId}

Результат

Клод справился без проблем – здесь всё очевидно, комментировать особо нечего.

PR на удаление операции
https://github.com/nzinovev/anthropic-claude/pull/8

Добавляем валидацию

CRUD для operation готов, но пока он довольно примитивен. Кроме того, у нас вообще нет тестов – а это важная часть качественной разработки. Чтобы не растягивать статью, я не буду покрывать тестами и валидацией все эндпоинты.

Я выберу один – CREATE Operation – и попрошу Клода добавить:

  • Валидацию запроса

  • Unit-тесты для сервисного слоя

  • MVC-тест для контроллера

Погнали!

Добавляем валидацию для CREATE-операции

Напоминаю Клоду, как выглядит логика, связанная с созданием операции и прошу добавить валидацию для CREATE-операции.

Запрос Клоду

This is how the "create operation" is implemented at the moment.
<example>

@Data  
public class OperationCreateRequest {  
    private String name;  
    private BigDecimal amount;  
    private OperationType type;  
    private Long categoryId;  
}
@RestController  
@RequestMapping("/api/v1/operations")  
@RequiredArgsConstructor  
public class OperationController {
	private final OperationService operationService;  
  
	@PostMapping  
	@ResponseStatus(HttpStatus.CREATED)  
	public OperationResponse createOperation(@RequestBody OperationCreateRequest request) {  
	    return operationService.createOperation(request);  
	}
}
@Service  
@RequiredArgsConstructor  
public class OperationService {
	private final OperationRepository operationRepository;  
	private final CategoryRepository categoryRepository;  
	private final OperationMapper operationMapper;  
  
	@Transactional  
	public OperationResponse createOperation(OperationCreateRequest request) {  
	    Category category = categoryRepository.getReferenceById(request.getCategoryId());  
  
	    Operation operation = operationMapper.toEntity(request);  
	    operation.setCategory(category);  
  
	    Operation savedOperation = operationRepository.save(operation);  
	    return operationMapper.toDto(savedOperation);  
	}
}
@Entity  
@Table(name = "operation", schema = "anthropic_claude")  
@Getter  
@Setter  
public class Operation {  
  
    @Id  
    @Column(name = "operation_id")  
    @GeneratedValue(strategy = GenerationType.IDENTITY)  
    private Long id;  
  
    @Column(name = "operation_public_id", nullable = false, unique = true)  
    private String publicId;  
  
    @Column(name = "operation_name", nullable = false)  
    private String name;  
  
    @Column(name = "operation_type", nullable = false)  
    @Enumerated(EnumType.STRING)  
    private OperationType type;  
  
    @Column(name = "operation_amount", nullable = false)  
    private BigDecimal amount;  
  
    @ManyToOne(fetch = FetchType.LAZY)  
    @JoinColumn(name = "category_id", nullable = false)  
    private Category category;  
  
    @Override  
    public boolean equals(Object o) {  
        if (this == o) return true;  
        if (!(o instanceof Operation operation)) return false;  
        return id != null &amp;&amp; id.equals(operation.id);  
    }  
  
    @Override  
    public int hashCode() {  
        return id != null ? id.hashCode() : super.hashCode();  
    }  
}

</example>

Add validation for "create operation" logic.

Ответ Клода

I'll add validation for the create operation logic. Let's implement it step by step:

  1. Field validations needed:

    • name: not blank, max length 255

    • amount: not null, positive

    • type: not null, valid enum value

    • categoryId: not null, must exist in database

    • business rule: category must exist

  2. Changes needed:

    • Add validation annotations to DTO

    • Add custom exception classes

    • Add validation in service layer

    • Add global exception handler

Here's the implementation:

// src/main/java/com/yourcompany/exception/CategoryNotFoundException.java

package com.yourcompany.exception;

import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ResponseStatus;

@ResponseStatus(HttpStatus.NOT_FOUND)
public class CategoryNotFoundException extends RuntimeException {
    public CategoryNotFoundException(String message) {
        super(message);
    }
}
// src/main/java/com/yourcompany/exception/ValidationErrorResponse.java

package com.yourcompany.exception;

import lombok.Data;
import java.util.ArrayList;
import java.util.List;

@Data
public class ValidationErrorResponse {
    private List errors = new ArrayList&lt;&gt;();

    @Data
    public static class ValidationError {
        private final String field;
        private final String message;
    }
}
// src/main/java/com/yourcompany/exception/GlobalExceptionHandler.java

package com.yourcompany.exception;

import org.springframework.http.HttpStatus;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public ValidationErrorResponse handleValidationException(MethodArgumentNotValidException ex) {
        ValidationErrorResponse response = new ValidationErrorResponse();
        
        ex.getBindingResult().getFieldErrors().forEach(error -&gt; 
            response.getErrors().add(new ValidationErrorResponse.ValidationError(
                error.getField(), 
                error.getDefaultMessage()
            ))
        );
        
        return response;
    }

    @ExceptionHandler(CategoryNotFoundException.class)
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public ValidationErrorResponse handleCategoryNotFoundException(CategoryNotFoundException ex) {
        ValidationErrorResponse response = new ValidationErrorResponse();
        response.getErrors().add(new ValidationErrorResponse.ValidationError(
            "categoryId", 
            ex.getMessage()
        ));
        return response;
    }
}
// src/main/java/com/yourcompany/dto/OperationCreateRequest.java

package com.yourcompany.dto;

import com.yourcompany.domain.entity.OperationType;
import jakarta.validation.constraints.*;
import lombok.Data;
import java.math.BigDecimal;

@Data
public class OperationCreateRequest {
    @NotBlank(message = "Operation name is required")
    @Size(max = 255, message = "Operation name must not exceed 255 characters")
    private String name;

    @NotNull(message = "Amount is required")
    @Positive(message = "Amount must be positive")
    @Digits(integer = 20, fraction = 2, message = "Amount must have at most 20 digits and 2 decimal places")
    private BigDecimal amount;

    @NotNull(message = "Operation type is required")
    private OperationType type;

    @NotNull(message = "Category ID is required")
    @Positive(message = "Category ID must be positive")
    private Long categoryId;
}
// src/main/java/com/yourcompany/service/OperationService.java

@Service
@RequiredArgsConstructor
public class OperationService {
    private final OperationRepository operationRepository;
    private final CategoryRepository categoryRepository;
    private final OperationMapper operationMapper;

    @Transactional
    public OperationResponse createOperation(OperationCreateRequest request) {
        // Check if category exists
        Category category = categoryRepository.findById(request.getCategoryId())
            .orElseThrow(() -&gt; new CategoryNotFoundException(
                String.format("Category with id %d not found", request.getCategoryId())));

        Operation operation = operationMapper.toEntity(request);
        operation.setCategory(category);

        Operation savedOperation = operationRepository.save(operation);
        return operationMapper.toDto(savedOperation);
    }
}
// src/main/java/com/yourcompany/controller/OperationController.java

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {
    private final OperationService operationService;

    @PostMapping
    @ResponseStatus(HttpStatus.CREATED)
    public OperationResponse createOperation(@Valid @RequestBody OperationCreateRequest request) {
        return operationService.createOperation(request);
    }
}

Now when creating an operation:

  1. If validation fails, you'll get a 400 Bad Request with details about what went wrong:

{
    "errors": [
        {
            "field": "name",
            "message": "Operation name is required"
        },
        {
            "field": "amount",
            "message": "Amount must be positive"
        }
    ]
}
  1. If category is not found, you'll get a 404 Not Found:

{
    "errors": [
        {
            "field": "categoryId",
            "message": "Category with id 123 not found"
        }
    ]
}

Результат: плюсы и минусы

Клод реализовал грамотную обработку ошибок:

  • Все ошибки возвращаются сразу – пользователю не нужно отправлять несколько запросов.

  • Добавлен ExceptionHandler – обработка ошибок централизована.

Но валидация не работает.

Проблема: отсутствуют зависимости

Клод не добавил нужные зависимости:

<!-- Чтобы заработала аннотация Valid и Spring начал валидацию -->
<dependency>  
   <groupId>org.springframework.boot</groupId>  
   <artifactId>spring-boot-starter-validation</artifactId>  
</dependency>
<!-- Для аннотаций NotBlank, NotNull, etc. -->
<dependency>  
   <groupId>jakarta.validation</groupId>  
   <artifactId>jakarta.validation-api</artifactId>  
   <version>3.1.0</version>  
</dependency>

Если необходимость jakarta.validation ещё можно догадаться по импорту аннотаций в DTO, то spring-boot-starter-validation менее очевиден.

А я ведь имитирую разработчика с минимальным опытом, и без документации мне сложно понять, почему валидация не работает.

Ошибка с обработкой NotFound-исключений

Как и в CRUD-логике, Клод добавил специфичное исключение:

public class CategoryNotFoundException extends RuntimeException { ... }

Такой подход требует:

  • Создавать отдельное исключение для каждой сущности.

  • Добавлять его обработку в ExceptionHandler.

Лучше использовать единое NotFoundException и наследоваться от него (это уже обсуждалось ранее).

Кроме того, добавлена лишняя аннотация:

@ResponseStatus(HttpStatus.NOT_FOUND)

Это избыточно, потому что исключение уже обрабатывается глобальным ExceptionHandler.

Попытка исправить – новая проблема

Попросил Клода исправить ошибки:

I've added annotations to OperationCreateRequest. 
However, when I send a request with incorrect data, 
the application does not respond with a validation error. 
The app ignores all annotations relating to validation and passes the request on.
Ответ Клода

The issue is likely because the validation dependencies and configuration are missing. Let's fix this:

  1. First, add the validation dependency to your pom.xml:


    org.springframework.boot
    spring-boot-starter-validation

  1. Make sure your application configuration enables validation. Create or update the configuration class:

// src/main/java/com/yourcompany/config/WebConfig.java

package com.yourcompany.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class WebConfig implements WebMvcConfigurer {
    // Additional web configuration can be added here if needed
}
  1. Double-check that your controller has the @Valid annotation on the request parameter:

@RestController
@RequestMapping("/api/v1/operations")
@RequiredArgsConstructor
public class OperationController {
    private final OperationService operationService;

    @PostMapping
    @ResponseStatus(HttpStatus.CREATED)
    public OperationResponse createOperation(@Valid @RequestBody OperationCreateRequest request) {
        return operationService.createOperation(request);
    }
}
  1. Verify that your DTO has all the necessary validation annotations:

@Data
public class OperationCreateRequest {
    @NotBlank(message = "Operation name is required")
    @Size(max = 255, message = "Operation name must not exceed 255 characters")
    private String name;

    @NotNull(message = "Amount is required")
    @Positive(message = "Amount must be positive")
    @Digits(integer = 20, fraction = 2, message = "Amount must have at most 20 digits and 2 decimal places")
    private BigDecimal amount;

    @NotNull(message = "Operation type is required")
    private OperationType type;

    @NotNull(message = "Category ID is required")
    @Positive(message = "Category ID must be positive")
    private Long categoryId;
}
  1. Make sure you have the exception handler properly configured:

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public ValidationErrorResponse handleValidationException(MethodArgumentNotValidException ex) {
        ValidationErrorResponse response = new ValidationErrorResponse();
        
        ex.getBindingResult().getFieldErrors().forEach(error -&gt; 
            response.getErrors().add(new ValidationErrorResponse.ValidationError(
                error.getField(), 
                error.getDefaultMessage()
            ))
        );
        
        return response;
    }

    // Add logging to help with debugging
    public GlobalExceptionHandler() {
        log.info("GlobalExceptionHandler initialized");
    }

    @ExceptionHandler(Exception.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public ValidationErrorResponse handleAllUncaughtException(Exception ex) {
        log.error("Uncaught exception", ex);
        ValidationErrorResponse response = new ValidationErrorResponse();
        response.getErrors().add(new ValidationErrorResponse.ValidationError(
            "global", 
            "An unexpected error occurred"
        ));
        return response;
    }
}
  1. Test the validation with an invalid request:

curl -X POST http://localhost:8080/api/v1/operations \
-H "Content-Type: application/json" \
-d '{
    "name": "",
    "amount": -100,
    "type": null,
    "categoryId": null
}'

You should receive a response like:

{
    "errors": [
        {
            "field": "name",
            "message": "Operation name is required"
        },
        {
            "field": "amount",
            "message": "Amount must be positive"
        },
        {
            "field": "type",
            "message": "Operation type is required"
        },
        {
            "field": "categoryId",
            "message": "Category ID is required"
        }
    ]
}

If you're still not seeing validation errors, you can add debug logging to verify the validation is being triggered:

@PostMapping
@ResponseStatus(HttpStatus.CREATED)
public OperationResponse createOperation(@Valid @RequestBody OperationCreateRequest request) {
    log.debug("Received operation create request: {}", request);
    return operationService.createOperation(request);
}

Also, you can enable debug logging for Spring validation in application.yml:

logging:
  level:
    org.springframework.web: DEBUG
    org.springframework.validation: DEBUG
    com.yourcompany: DEBUG

Would you like me to help you debug this further or explain any part of the validation setup in more detail?

Ответ дан, но слишком избыточен. Модель начала добавлять ненужный код, в том числе:

// src/main/java/com/yourcompany/config/WebConfig.java

package com.yourcompany.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class WebConfig implements WebMvcConfigurer {
    // Additional web configuration can be added here if needed
}

Этот класс вообще не нужен – валидация работает без него. Это конфигурация для MVC приложения, а у нас REST API.

Проблема знакомая – при сложных запросах LLM начинает генерировать лишний код.

Можно было очистить контекст и пересоздать промпт, но я решил продолжить с текущим вариантом. Валидация готова, переходим к тестам.

PR с валидацией
https://github.com/nzinovev/anthropic-claude/pull/9

Юнит-тесты для OperationService

Попросил Клода написать позитивные и негативные тесты для OperationService

Запрос к Клоду

This is a reminder of what code is contained in the OperationService class:

@Service
@RequiredArgsConstructor
public class OperationService {

    private final OperationRepository operationRepository;
    private final CategoryRepository categoryRepository;
    private final OperationMapper operationMapper;

    @Transactional
    public OperationResponse createOperation(OperationCreateRequest request) {
        final var category = categoryRepository.findById(request.getCategoryId())
                .orElseThrow(() -&gt; new CategoryNotFoundException(
                        String.format("Category with id %d not found", request.getCategoryId())));

        final var operation = operationMapper.toEntity(request);
        operation.setCategory(category);

        final var savedOperation = operationRepository.save(operation);
        return operationMapper.toDto(savedOperation);
    }

    @Transactional
    public OperationResponse updateOperation(String publicId, OperationUpdateRequest request) {
        return operationRepository.findByPublicId(publicId)
                .map(operation -&gt; updateOperation(operation, request))
                .orElseThrow(() -&gt; new RuntimeException("Operation not found"));
    }

    @Transactional(readOnly = true)
    public PageResponse findAll(Pageable pageable) {
        final var operationPage = operationRepository.findAll(pageable);
        final var responsePage = operationPage.map(operationMapper::toDto);
        return PageResponse.from(responsePage);
    }

    @Transactional(readOnly = true)
    public OperationResponse findByPublicId(String publicId) {
        final var operation = operationRepository.findByPublicId(publicId)
                .orElseThrow(() -&gt; new RuntimeException("Operation not found"));
        return operationMapper.toDto(operation);
    }

    @Transactional
    public void deleteOperation(String publicId) {
        final var operation = operationRepository.findByPublicId(publicId)
                .orElseThrow(() -&gt; new RuntimeException(
                        String.format("Operation with publicId %s not found", publicId)));

        operationRepository.delete(operation);
    }

    private OperationResponse updateOperation(Operation operation, OperationUpdateRequest request) {
        if (request.getName() != null) {
            operation.setName(request.getName());
        }
        if (request.getAmount() != null) {
            operation.setAmount(request.getAmount());
        }
        if (request.getType() != null) {
            operation.setType(request.getType());
        }
        if (request.getCategoryId() != null) {
            final var category = categoryRepository.getReferenceById(request.getCategoryId());
            operation.setCategory(category);
        }

        final var updatedOperation = operationRepository.save(operation);

        return operationMapper.toDto(updatedOperation);
    }
}

Write unit-tests for OperationService. You should write positive and negative tests where it's needed (for example: check that an exception will be thrown)

Ответ Клода

I'll write comprehensive unit tests for the OperationService class. We'll use JUnit 5 and Mockito for testing.

// src/test/java/com/yourcompany/service/OperationServiceTest.java

package com.yourcompany.service;

import com.yourcompany.domain.entity.Category;
import com.yourcompany.domain.entity.Operation;
import com.yourcompany.domain.entity.OperationType;
import com.yourcompany.dto.OperationCreateRequest;
import com.yourcompany.dto.OperationResponse;
import com.yourcompany.dto.OperationUpdateRequest;
import com.yourcompany.dto.PageResponse;
import com.yourcompany.exception.CategoryNotFoundException;
import com.yourcompany.mapper.OperationMapper;
import com.yourcompany.repository.CategoryRepository;
import com.yourcompany.repository.OperationRepository;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.PageRequest;

import java.math.BigDecimal;
import java.util.List;
import java.util.Optional;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.*;

@ExtendWith(MockitoExtension.class)
class OperationServiceTest {

    @Mock
    private OperationRepository operationRepository;

    @Mock
    private CategoryRepository categoryRepository;

    @Mock
    private OperationMapper operationMapper;

    @InjectMocks
    private OperationService operationService;

    private Operation operation;
    private Category category;
    private OperationResponse operationResponse;
    private OperationCreateRequest createRequest;
    private OperationUpdateRequest updateRequest;

    @BeforeEach
    void setUp() {
        category = new Category();
        category.setId(1L);

        operation = new Operation();
        operation.setId(1L);
        operation.setPublicId("test-public-id");
        operation.setName("Test Operation");
        operation.setAmount(BigDecimal.valueOf(100));
        operation.setType(OperationType.DEPOSIT);
        operation.setCategory(category);

        operationResponse = new OperationResponse();
        operationResponse.setPublicId("test-public-id");
        operationResponse.setName("Test Operation");
        operationResponse.setAmount(BigDecimal.valueOf(100));
        operationResponse.setType(OperationType.DEPOSIT);
        operationResponse.setCategoryId(1L);

        createRequest = new OperationCreateRequest();
        createRequest.setName("Test Operation");
        createRequest.setAmount(BigDecimal.valueOf(100));
        createRequest.setType(OperationType.DEPOSIT);
        createRequest.setCategoryId(1L);

        updateRequest = new OperationUpdateRequest();
        updateRequest.setName("Updated Operation");
        updateRequest.setAmount(BigDecimal.valueOf(200));
        updateRequest.setType(OperationType.WITHDRAWAL);
        updateRequest.setCategoryId(1L);
    }

    @Test
    void createOperation_Success() {
        // Arrange
        when(categoryRepository.findById(1L)).thenReturn(Optional.of(category));
        when(operationMapper.toEntity(createRequest)).thenReturn(operation);
        when(operationRepository.save(any(Operation.class))).thenReturn(operation);
        when(operationMapper.toDto(operation)).thenReturn(operationResponse);

        // Act
        OperationResponse result = operationService.createOperation(createRequest);

        // Assert
        assertThat(result).isNotNull();
        assertThat(result.getPublicId()).isEqualTo("test-public-id");
        verify(categoryRepository).findById(1L);
        verify(operationRepository).save(any(Operation.class));
    }

    @Test
    void createOperation_CategoryNotFound() {
        // Arrange
        when(categoryRepository.findById(1L)).thenReturn(Optional.empty());

        // Act &amp; Assert
        assertThrows(CategoryNotFoundException.class,
                () -&gt; operationService.createOperation(createRequest));
        verify(operationRepository, never()).save(any(Operation.class));
    }

    @Test
    void updateOperation_Success() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.of(operation));
        when(categoryRepository.getReferenceById(1L)).thenReturn(category);
        when(operationRepository.save(any(Operation.class))).thenReturn(operation);
        when(operationMapper.toDto(operation)).thenReturn(operationResponse);

        // Act
        OperationResponse result = operationService.updateOperation("test-public-id", updateRequest);

        // Assert
        assertThat(result).isNotNull();
        verify(operationRepository).save(any(Operation.class));
    }

    @Test
    void updateOperation_NotFound() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.empty());

        // Act &amp; Assert
        assertThrows(RuntimeException.class,
                () -&gt; operationService.updateOperation("test-public-id", updateRequest));
        verify(operationRepository, never()).save(any(Operation.class));
    }

    @Test
    void findAll_Success() {
        // Arrange
        PageRequest pageRequest = PageRequest.of(0, 10);
        List operations = List.of(operation);
        Page operationPage = new PageImpl&lt;&gt;(operations, pageRequest, 1);
        
        when(operationRepository.findAll(pageRequest)).thenReturn(operationPage);
        when(operationMapper.toDto(operation)).thenReturn(operationResponse);

        // Act
        PageResponse result = operationService.findAll(pageRequest);

        // Assert
        assertThat(result).isNotNull();
        assertThat(result.getContent()).hasSize(1);
        assertThat(result.getTotalElements()).isEqualTo(1);
    }

    @Test
    void findByPublicId_Success() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.of(operation));
        when(operationMapper.toDto(operation)).thenReturn(operationResponse);

        // Act
        OperationResponse result = operationService.findByPublicId("test-public-id");

        // Assert
        assertThat(result).isNotNull();
        assertThat(result.getPublicId()).isEqualTo("test-public-id");
    }

    @Test
    void findByPublicId_NotFound() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.empty());

        // Act &amp; Assert
        assertThrows(RuntimeException.class,
                () -&gt; operationService.findByPublicId("test-public-id"));
    }

    @Test
    void deleteOperation_Success() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.of(operation));

        // Act
        operationService.deleteOperation("test-public-id");

        // Assert
        verify(operationRepository).delete(operation);
    }

    @Test
    void deleteOperation_NotFound() {
        // Arrange
        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.empty());

        // Act &amp; Assert
        assertThrows(RuntimeException.class,
                () -&gt; operationService.deleteOperation("test-public-id"));
        verify(operationRepository, never()).delete(any(Operation.class));
    }

    @Test
    void updateOperation_PartialUpdate() {
        // Arrange
        OperationUpdateRequest partialRequest = new OperationUpdateRequest();
        partialRequest.setName("Updated Name");  // Only update name

        when(operationRepository.findByPublicId("test-public-id")).thenReturn(Optional.of(operation));
        when(operationRepository.save(any(Operation.class))).thenReturn(operation);
        when(operationMapper.toDto(operation)).thenReturn(operationResponse);

        // Act
        OperationResponse result = operationService.updateOperation("test-public-id", partialRequest);

        // Assert
        assertThat(result).isNotNull();
        verify(operationRepository).save(any(Operation.class));
        verify(categoryRepository, never()).getReferenceById(any());  // Category should not be updated
    }
}

Тесты проходят успешно, но есть нюансы.

Дублирование verify & when

В тесте createOperation_Success дублируются verify и when.

Почему это плохо?

  • when(...) уже проверяет вызов метода.

  • verify(...) имеет смысл только если проверяются все вызовы в createOperation.

Как лучше?

  • Либо использовать verify только на void методах.

  • Либо проверять все вызовы, а не только часть.

Проблема с any(Operation.class)

Тест не проверяет содержимое объекта, только его тип.

when(operationRepository.save(any(Operation.class))).thenReturn(operation);

Это значит, что если внутри createOperation объект Operation изменится, тест этого не заметит.

Пример ошибки:

  • В коде забыли проставить категорию перед сохранением.

  • Тест всё равно проходит.

    @Transactional  
    public OperationResponse createOperation(OperationCreateRequest request) {  
        final var category = categoryRepository.findById(request.getCategoryId())  
                .orElseThrow(() -> new CategoryNotFoundException(  
                        String.format("Category with id %d not found", request.getCategoryId())));  
  
        final var operation = operationMapper.toEntity(request);  
//        operation.setCategory(category);  // ОШИБКА!  

        final var savedOperation = operationRepository.save(operation);  
        return operationMapper.toDto(savedOperation);  
    }

Тест не обнаружит эту ошибку! Как исправить? Использовать ArgumentCaptor, чтобы перехватить объект, переданный в save().

Исправленный вариант теста с ArgumentCaptor

@Captor  
ArgumentCaptor operationArgumentCaptor;

@Test  
void createOperation_Success() {  
    // Arrange  
    when(categoryRepository.findById(1L)).thenReturn(Optional.of(category));  
    when(operationMapper.toEntity(createRequest)).thenReturn(operation);  
    when(operationRepository.save(any(Operation.class))).thenReturn(operation);  
    when(operationMapper.toDto(operation)).thenReturn(operationResponse);  
  
    // Act  
    OperationResponse result = operationService.createOperation(createRequest);  
  
    // Assert  
    assertThat(result).isNotNull();  
    assertThat(result.getPublicId()).isEqualTo("test-public-id");  

    // Перехватываем переданный в save объект
    //captor можно вставить в verify блоке или в when блоке и там и там он отработает корректно
    verify(operationRepository).save(operationArgumentCaptor.capture());  
    assertEquals(1, operationArgumentCaptor.getAllValues().size());  

    // Проверяем, что категория была установлена  
    var savedOperation = operationArgumentCaptor.getValue();  
    assertEquals(category, savedOperation.getCategory());  
}

Теперь тест проверяет корректность объекта, а не просто его тип.

Избыточные данные в setUp методе

Рассмотрим всё тот же тест createOperation_Success(). Как createOperation() работает в коде:

  1. Ищет категорию в БД

  2. Маппит OperationCreateRequest в Operation

  3. Устанавливает категорию в объект Operation

  4. Сохраняет объект Operaion

В тесте объект Operation создаётся один раз в setUp()но уже с установленной категорией. Затем этот объект возвращается в моке

when(operationMapper.toEntity(createRequest)).thenReturn(operation);

Данная реализация снижает качество теста: часть логики createOperation() не проверяется. В будущем это может привести к багам, которые останутся незамеченными.

Кодстайл и "вкусовщина"

  • Тестируемый класс назван operationService вместо sut (System Under Test), по второму варианту сразу видно, какой сервис тестируется

  • Генерация тестовых данных вынесена в @BeforeEach, но не все данные нужны в каждом тесте. Лучше вынести в приватный метод и вызывать в нужных местах.

private OperationCreateRequest buildCreateRequest() {
    return new OperationCreateRequest("Тест", 100.0, "WITHDRAW", 1L);
}

Так тесты будут чище и понятнее.

PR с unit тестами
https://github.com/nzinovev/anthropic-claude/pull/10

MVC-тесты

Юнит-тесты готовы, теперь попросил Клода написать MVC-тесты для контроллера.

Запрос к Клоду

Write a MVC-tests for OperationController. This is a reminder of what code is contained in the OperationController

@RestController  
@RequestMapping("/api/v1/operations")  
@RequiredArgsConstructor  
public class OperationController {  
  
    private final OperationService operationService;  
  
    @PostMapping  
    @ResponseStatus(HttpStatus.CREATED)  
    public OperationResponse createOperation(@Valid @RequestBody OperationCreateRequest request) {  
        return operationService.createOperation(request);  
    }  
  
    @PutMapping("/{publicId}")  
    public OperationResponse updateOperation(  
            @PathVariable String publicId,  
            @RequestBody OperationUpdateRequest request) {  
        return operationService.updateOperation(publicId, request);  
    }  
  
    @GetMapping  
    public PageResponse<OperationResponse> findAll(  
            @RequestParam(defaultValue = "0") int page,  
            @RequestParam(defaultValue = "20") int size,  
            @RequestParam(defaultValue = "publicId") String sortBy,  
            @RequestParam(defaultValue = "DESC") Sort.Direction direction) {  
        final var pageRequest = PageRequest.of(  
                page,  
                size,  
                Sort.by(direction, sortBy)  
        );  
  
        return operationService.findAll(pageRequest);  
    }  
  
    @GetMapping("/{publicId}")  
    public OperationResponse findByPublicId(@PathVariable String publicId) {  
        return operationService.findByPublicId(publicId);  
    }  
  
    @DeleteMapping("/{publicId}")  
    @ResponseStatus(HttpStatus.NO_CONTENT)  
    public void deleteOperation(@PathVariable String publicId) {  
        operationService.deleteOperation(publicId);  
    }  
}

@Data  
public class OperationResponse {  
    private String publicId;  
    private String name;  
    private BigDecimal amount;  
    private OperationType type;  
    private Long categoryId;  
}

@Data  
public class OperationCreateRequest {  
    @NotBlank(message = "Operation name is required")  
    @Size(max = 255, message = "Operation name must not exceed 255 characters")  
    private String name;  
    @NotNull(message = "Amount is required")  
    @Positive(message = "Amount must be positive")  
    @Digits(integer = 20, fraction = 2, message = "Amount must have at most 20 digits and 2 decimal places")  
    private BigDecimal amount;  
    @NotNull(message = "Operation type is required")  
    private OperationType type;  
    @NotNull(message = "Category ID is required")  
    @Positive(message = "Category ID must be positive")  
    private Long categoryId;  
}

@Data  
public class OperationUpdateRequest {  
    private String name;  
    private BigDecimal amount;  
    private OperationType type;  
    private Long categoryId;  
}
Ответ Клода

I'll write comprehensive MVC tests for the OperationController using Spring's MockMvc:

// src/test/java/com/yourcompany/controller/OperationControllerTest.java

package com.yourcompany.controller;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.yourcompany.domain.entity.OperationType;
import com.yourcompany.dto.*;
import com.yourcompany.exception.CategoryNotFoundException;
import com.yourcompany.service.OperationService;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;

import java.math.BigDecimal;
import java.util.List;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

@WebMvcTest(OperationController.class)
class OperationControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @Autowired
    private ObjectMapper objectMapper;

    @MockBean
    private OperationService operationService;

    private OperationCreateRequest createRequest;
    private OperationUpdateRequest updateRequest;
    private OperationResponse operationResponse;
    private PageResponse pageResponse;

    @BeforeEach
    void setUp() {
        createRequest = new OperationCreateRequest();
        createRequest.setName("Test Operation");
        createRequest.setAmount(BigDecimal.valueOf(100));
        createRequest.setType(OperationType.DEPOSIT);
        createRequest.setCategoryId(1L);

        updateRequest = new OperationUpdateRequest();
        updateRequest.setName("Updated Operation");
        updateRequest.setAmount(BigDecimal.valueOf(200));
        updateRequest.setType(OperationType.WITHDRAWAL);
        updateRequest.setCategoryId(2L);

        operationResponse = new OperationResponse();
        operationResponse.setPublicId("test-public-id");
        operationResponse.setName("Test Operation");
        operationResponse.setAmount(BigDecimal.valueOf(100));
        operationResponse.setType(OperationType.DEPOSIT);
        operationResponse.setCategoryId(1L);

        pageResponse = new PageResponse&lt;&gt;();
        pageResponse.setContent(List.of(operationResponse));
        pageResponse.setPageNumber(0);
        pageResponse.setPageSize(20);
        pageResponse.setTotalElements(1);
        pageResponse.setTotalPages(1);
        pageResponse.setLast(true);
    }

    @Test
    void createOperation_Success() throws Exception {
        when(operationService.createOperation(any(OperationCreateRequest.class)))
                .thenReturn(operationResponse);

        mockMvc.perform(post("/api/v1/operations")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(createRequest)))
                .andExpect(status().isCreated())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                .andExpect(jsonPath("$.publicId").value("test-public-id"))
                .andExpect(jsonPath("$.name").value("Test Operation"))
                .andExpect(jsonPath("$.amount").value(100))
                .andExpect(jsonPath("$.type").value("DEPOSIT"))
                .andExpect(jsonPath("$.categoryId").value(1));

        verify(operationService).createOperation(any(OperationCreateRequest.class));
    }

    @Test
    void createOperation_ValidationFailure() throws Exception {
        createRequest.setName("");
        createRequest.setAmount(BigDecimal.valueOf(-100));
        createRequest.setType(null);
        createRequest.setCategoryId(null);

        mockMvc.perform(post("/api/v1/operations")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(createRequest)))
                .andExpect(status().isBadRequest())
                .andExpect(jsonPath("$.errors").isArray())
                .andExpect(jsonPath("$.errors.length()").value(4));

        verify(operationService, never()).createOperation(any());
    }

    @Test
    void createOperation_CategoryNotFound() throws Exception {
        when(operationService.createOperation(any()))
                .thenThrow(new CategoryNotFoundException("Category not found"));

        mockMvc.perform(post("/api/v1/operations")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(createRequest)))
                .andExpect(status().isNotFound())
                .andExpect(jsonPath("$.errors[0].message").value("Category not found"));
    }

    @Test
    void updateOperation_Success() throws Exception {
        when(operationService.updateOperation(eq("test-public-id"), any(OperationUpdateRequest.class)))
                .thenReturn(operationResponse);

        mockMvc.perform(put("/api/v1/operations/test-public-id")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(updateRequest)))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                .andExpect(jsonPath("$.publicId").value("test-public-id"));

        verify(operationService).updateOperation(eq("test-public-id"), any(OperationUpdateRequest.class));
    }

    @Test
    void updateOperation_NotFound() throws Exception {
        when(operationService.updateOperation(eq("non-existent-id"), any()))
                .thenThrow(new RuntimeException("Operation not found"));

        mockMvc.perform(put("/api/v1/operations/non-existent-id")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(updateRequest)))
                .andExpect(status().isInternalServerError());
    }

    @Test
    void findAll_Success() throws Exception {
        PageRequest expectedPageRequest = PageRequest.of(0, 20, Sort.by(Sort.Direction.DESC, "publicId"));
        when(operationService.findAll(expectedPageRequest)).thenReturn(pageResponse);

        mockMvc.perform(get("/api/v1/operations"))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                .andExpect(jsonPath("$.content").isArray())
                .andExpect(jsonPath("$.content.length()").value(1))
                .andExpect(jsonPath("$.pageNumber").value(0))
                .andExpect(jsonPath("$.pageSize").value(20))
                .andExpect(jsonPath("$.totalElements").value(1));

        verify(operationService).findAll(any(PageRequest.class));
    }

    @Test
    void findAll_WithCustomPagination() throws Exception {
        PageRequest customPageRequest = PageRequest.of(1, 10, Sort.by(Sort.Direction.ASC, "name"));
        when(operationService.findAll(any(PageRequest.class))).thenReturn(pageResponse);

        mockMvc.perform(get("/api/v1/operations")
                        .param("page", "1")
                        .param("size", "10")
                        .param("sortBy", "name")
                        .param("direction", "ASC"))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON));

        verify(operationService).findAll(any(PageRequest.class));
    }

    @Test
    void findByPublicId_Success() throws Exception {
        when(operationService.findByPublicId("test-public-id")).thenReturn(operationResponse);

        mockMvc.perform(get("/api/v1/operations/test-public-id"))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                .andExpect(jsonPath("$.publicId").value("test-public-id"));

        verify(operationService).findByPublicId("test-public-id");
    }

    @Test
    void findByPublicId_NotFound() throws Exception {
        when(operationService.findByPublicId("non-existent-id"))
                .thenThrow(new RuntimeException("Operation not found"));

        mockMvc.perform(get("/api/v1/operations/non-existent-id"))
                .andExpect(status().isInternalServerError());
    }

    @Test
    void deleteOperation_Success() throws Exception {
        doNothing().when(operationService).deleteOperation("test-public-id");

        mockMvc.perform(delete("/api/v1/operations/test-public-id"))
                .andExpect(status().isNoContent());

        verify(operationService).deleteOperation("test-public-id");
    }

    @Test
    void deleteOperation_NotFound() throws Exception {
        doThrow(new RuntimeException("Operation not found"))
                .when(operationService).deleteOperation("non-existent-id");

        mockMvc.perform(delete("/api/v1/operations/non-existent-id"))
                .andExpect(status().isInternalServerError());
    }
}

Что пошло не так?

Все тесты проходят, кроме трёх:

  • findByPublicId_NotFound

  • deleteOperation_NotFound

  • updateOperation_NotFound

И здесь очень интересны момент, Клод ожидает, что сервис вернёт 500-ю ошибку, но на самом деле он должен отвечать 404-й (и название теста на это намекает). Тест изначально не проходил, потому что Клод никогда не добавлял обработку 500-х ошибок в ExceptionHandler. Если бы тест ожидал 404-ю ошибку, то он всё равно бы падал, т.к. при обработке валидации, была добавлена обработка лишь CategoryNotFoundException, но есть и плюс: тесты падают, а значит, их нельзя игнорировать. Это даёт шанс исправить ошибку вовремя.

Исправляем: добавляем общее исключение NotFoundException и обработку RuntimeException:

@ExceptionHandler(NotFoundException.class)  
@ResponseStatus(HttpStatus.NOT_FOUND)  
public ValidationErrorResponse handleCategoryNotFoundException(NotFoundException ex) {  
    ValidationErrorResponse response = new ValidationErrorResponse();  
    response.getErrors().add(new ValidationErrorResponse.ValidationError(  
            "id",  
            ex.getMessage()  
    ));  
    return response;  
}  
  
@ExceptionHandler(Exception.class)  
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)  
public ErrorDto handleException(Exception ex) {  
    return new ErrorDto(ex.getMessage());  
}  
  
private record ErrorDto(String message){}

Теперь сервис корректно возвращает 404 в случае отсутствия объекта.

Разбираем тесты

Клод в целом справился, но есть несколько проблем. Тест createOperation_Success проверяет результат через jsonPath:

.andExpect(jsonPath("$.publicId").value("test-public-id"))  
.andExpect(jsonPath("$.name").value("Test Operation"))  
.andExpect(jsonPath("$.amount").value(100))  

Проверки через jsonPath неудобны, их тяжелее читать, особенно если в модели присутствует вложенность или массив данных. Вариант с хранением json-файла с ожидаемым результатом будет намного проще.

Тест findAll_WithCustomPagination совсем не проверяет возвращаемый результат, он подготовлен, но не добавлен в проверку. findByPublicId_Success проверяет лишь id, хотя в beforeEach подготовлен целый объект.

На первый взгляд может показаться, что Клод справился хорошо но если приглядеться– не хватает проверок, а кое-где они просто отсутствуют.

PR с MVC тестами
https://github.com/nzinovev/anthropic-claude/pull/11

Итоги

Мы прошли по минимальному циклу разработки, используя ИИ:

  • Создали БД, таблицы и сущности.

  • Реализовали взаимодействие с БД через Spring JPA.

  • Написали CRUD-операции и обработку ошибок.

  • Добавили юнит-тесты и MVC-тесты.

Впечатления

Справился ли Клод с поставленной задачей?

Да, он выдал рабочий код, который можно было довести до финального состояния.

Написал ли он код уровня сеньора?

Нет. Код требовал исправлений и доработок. Клод допускал ошибки, которые опытный разработчик избежал бы сразу.

Может ли человек без опыта программирования получить такую же выдачу?

Нет, Клод справился только потому, что получал чёткие требования и правильную настройку. ИИ может писать код, но только если задающий понимает, что именно он хочет получить.

ИИ в разработке: помощник или замена?

Можно ли использовать ИИ в реальной работе?
Не просто можно, а нужно. ИИ существенно ускоряет разработку, но важно понимать его ограничения.

Ключевые принципы работы с ИИ

Чем лучше подготовлен промпт, тем лучше выдача

  • Если промпт размытый – код будет неполным или некорректным.

  • Если задать чёткий запрос – модель выдаст качественный код.

Чем меньше задача, тем выше качество

  • ИИ отлично справляется с небольшими блоками кода.

  • Если же попросить его реализовать большой модуль, он может упустить детали или перегрузить выдачу.

ИИ эффективен как помощник в написании небольших фрагментов кода, но для сложных задач нужен контроль со стороны разработчика.

Риски использования ИИ в разработке

ИИ не гарантирует идеальный код и может нести потенциальные риски.

Не стоит слепо доверять выдаче.

ИИ не анализирует код так, как разработчик. Он может допустить ошибки, которые незаметны сразу, но в будущем приведут к багам.

Конфиденциальность данных.

При работе с большими моделям такими как ChatGPT и Claude нужно быть осторожными с чувствительными и корпоративными данными. Передача кода в публичные LLM-модели несёт риск утечки данных.

Как защитить данные?

Не отправляйте коммерчески важный код в LLM. Если же вы это делаете, обязательно анонимизируйте данные перед отправкой.

Если конфиденциальность критична и анонимизация затруднена, рассмотрите вариант использования локальных LLM. Большой плюс таких моделей, что они локальны, следовательно, ваши данные не покинут просторы вашего ПК.

Нестабильное качество выдачи.

Код от ИИ бывает отличным, средним или откровенно плохим. Качество зависит не от модели, а от того, кто задаёт вопросы. ИИ – мощный инструмент, но бездумное использование может привести к проблемам.

Заменит ли ИИ разработчиков?

Когда-то – возможно. Но точно не сейчас.

ИИ пишет код, но не понимает его так, как человек.
Самая сложная часть разработки – архитектура, бизнес-логика, работа с требованиямиостаются за человеком.

ИИ – не замена, а мощный инструмент. Разработчик, который использует ИИ, будет писать код быстрее, эффективнее и качественнее. Разработчик, который не использует ИИ, будет работать дольше и медленнее.

ИИ – это не враг, а помощник, который ускоряет работу и снимает рутину.

Что дальше?

Мы рассмотрели три из четырёх поставленных вопросов. Осталось ответить на последний, какая модель лучше для программирования? Anthropic Claude? ChatGPT? DeepSeek?

Об этом – в следующей части.

Оставайтесь на связи.

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  • 19.11.25 08:11 JuneWatkins

    I’m June Watkins from California. I never thought I’d lose my life savings in Bitcoin. One wrong click, a fake wallet update, and $187,000 vanished in seconds. I cried for days, felt stupid, ashamed, and completely hopeless. But God wouldn’t let me stay silent or defeated. A friend sent me a simple message: “Contact Mbcoin Recovery Group, they specialize in this.” I was skeptical (there are so many scammers), but something in my spirit said “try.” I reached out to Mbcoin Recovery Group through their official site and within minutes their team responded with kindness and clarity. They walked with me step by step, and stayed in constant contact. Three days later, I watched in tears as every single Bitcoin returned to my wallet, 100% recovered. God turned my mess into a message and my shame into a testimony! If you’ve lost crypto and feel it’s gone forever, don’t give up. I’m living proof that recovery is possible. Thank you, Mbcoin Recovery Group, and thank You, Jesus, for never leaving me stranded. contact: (https://mbcoinrecoverygrou.wixsite.com/mb-coin-recovery) (Email: [email protected]) (Call Number: +1 346 954-1564)

  • 19.11.25 08:26 elizabethmadison

    My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) (Email [email protected])

  • 19.11.25 08:27 elizabethmadison

    My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site (Email [email protected])

  • 19.11.25 16:30 marcushenderson624

    Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 19.11.25 16:30 marcushenderson624

    Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 20.11.25 15:55 mariotuttle94

    HIRE THE BEST HACKER ONLINE FOR CRYPTO BITCOIN SCAM RECOVERY / iFORCE HACKER RECOVERY After a security breach, my husband lost $133,000 in Bitcoin. We sought help from a professional cybersecurity team iForce Hacker Recovery they guided us through each step of the recovery process. Their expertise allowed them to trace the compromised funds and help us understand how the breach occurred. The experience brought us clarity, restored a sense of stability, and reminded us of the importance of strong digital asset and security practices.  Website: ht tps:/ /iforcehackers. c om WhatsApp: +1 240-803-3706 Email: iforcehk @ consultant. c om

  • 21.11.25 10:56 marcushenderson624

    Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 21.11.25 10:56 marcushenderson624

    Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 22.11.25 04:41 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I got connected to the best female expert AGENT Jasmine Lopez,,( [email protected] ) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

  • 22.11.25 22:04 wendytaylor015

    My name is Wendy Taylor, I'm from Los Angeles, i want to announce to you Viewer how Capital Crypto Recover help me to restore my Lost Bitcoin, I invested with a Crypto broker without proper research to know what I was hoarding my hard-earned money into scammers, i lost access to my crypto wallet or had your funds stolen? Don’t worry Capital Crypto Recover is here to help you recover your cryptocurrency with cutting-edge technical expertise, With years of experience in the crypto world, Capital Crypto Recover employs the best latest tools and ethical hacking techniques to help you recover lost assets, unlock hacked accounts, Whether it’s a forgotten password, Capital Crypto Recover has the expertise to help you get your crypto back. a security company service that has a 100% success rate in the recovery of crypto assets, i lost wallet and hacked accounts. I provided them the information they requested and they began their investigation. To my surprise, Capital Crypto Recover was able to trace and recover my crypto assets successfully within 24hours. Thank you for your service in helping me recover my $647,734 worth of crypto funds and I highly recommend their recovery services, they are reliable and a trusted company to any individuals looking to recover lost money. Contact email [email protected] OR Telegram @Capitalcryptorecover Call/Text Number +1 (336)390-6684 his contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 22.11.25 22:04 wendytaylor015

    My name is Wendy Taylor, I'm from Los Angeles, i want to announce to you Viewer how Capital Crypto Recover help me to restore my Lost Bitcoin, I invested with a Crypto broker without proper research to know what I was hoarding my hard-earned money into scammers, i lost access to my crypto wallet or had your funds stolen? Don’t worry Capital Crypto Recover is here to help you recover your cryptocurrency with cutting-edge technical expertise, With years of experience in the crypto world, Capital Crypto Recover employs the best latest tools and ethical hacking techniques to help you recover lost assets, unlock hacked accounts, Whether it’s a forgotten password, Capital Crypto Recover has the expertise to help you get your crypto back. a security company service that has a 100% success rate in the recovery of crypto assets, i lost wallet and hacked accounts. I provided them the information they requested and they began their investigation. To my surprise, Capital Crypto Recover was able to trace and recover my crypto assets successfully within 24hours. Thank you for your service in helping me recover my $647,734 worth of crypto funds and I highly recommend their recovery services, they are reliable and a trusted company to any individuals looking to recover lost money. Contact email [email protected] OR Telegram @Capitalcryptorecover Call/Text Number +1 (336)390-6684 his contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 22.11.25 22:05 wendytaylor015

    My name is Wendy Taylor, I'm from Los Angeles, i want to announce to you Viewer how Capital Crypto Recover help me to restore my Lost Bitcoin, I invested with a Crypto broker without proper research to know what I was hoarding my hard-earned money into scammers, i lost access to my crypto wallet or had your funds stolen? Don’t worry Capital Crypto Recover is here to help you recover your cryptocurrency with cutting-edge technical expertise, With years of experience in the crypto world, Capital Crypto Recover employs the best latest tools and ethical hacking techniques to help you recover lost assets, unlock hacked accounts, Whether it’s a forgotten password, Capital Crypto Recover has the expertise to help you get your crypto back. a security company service that has a 100% success rate in the recovery of crypto assets, i lost wallet and hacked accounts. I provided them the information they requested and they began their investigation. To my surprise, Capital Crypto Recover was able to trace and recover my crypto assets successfully within 24hours. Thank you for your service in helping me recover my $647,734 worth of crypto funds and I highly recommend their recovery services, they are reliable and a trusted company to any individuals looking to recover lost money. Contact email [email protected] OR Telegram @Capitalcryptorecover Call/Text Number +1 (336)390-6684 his contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 23.11.25 03:34 Matt Kegan

    SolidBlock Forensics are absolutely the best Crypto forensics team, they're swift to action and accurate

  • 23.11.25 09:54 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 23.11.25 18:01 mosbygerry

    I recently had the opportunity to work with a skilled programmer who specialized in recovering crypto assets, and the results were nothing short of impressive. The experience not only helped me regain control of my investments but also provided valuable insight into the intricacies of cryptocurrency technology and cybersecurity. The journey began when I attempted to withdraw $183,000 from an investment firm, only to encounter a series of challenges that made it impossible for me to access my funds. Despite seeking assistance from individuals claiming to be Bitcoin miners, I was unable to recover my investments. The situation was further complicated by the fact that all my deposits were made using various cryptocurrencies that are difficult to trace. However, I persisted in my pursuit of recovery, driven by the determination to reclaim my losses. It was during this time that I discovered TechY Force Cyber Retrieval, a team of experts with a proven track record of successfully recovering crypto assets. With their assistance, I was finally able to recover my investments, and in doing so, gained a deeper understanding of the complex mechanisms that underpin cryptocurrency transactions. The experience taught me that with the right expertise and guidance, even the most seemingly insurmountable challenges can be overcome. I feel a sense of obligation to share my positive experience with others who may have fallen victim to cryptocurrency scams or are struggling to recover their investments. If you find yourself in a similar situation, I highly recommend seeking the assistance of a trustworthy and skilled programmer, such as those at TechY Force Cyber Retrieval. WhatsApp (+1561726 3697) or (+1561726 3697). Their expertise and dedication to helping individuals recover their crypto assets are truly commendable, and I have no hesitation in endorsing their services to anyone in need. By sharing my story, I hope to provide a beacon of hope for those who may have lost faith in their ability to recover their investments and to emphasize the importance of seeking professional help when navigating the complex world of cryptocurrency.

  • 24.11.25 11:43 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 24.11.25 11:43 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 24.11.25 16:34 Mundo

    I wired 120k in crypto to the wrong wallet. One dumb slip-up, and poof gone. That hit me hard. Lost everything I had built up. Crypto moves on the blockchain. It's like a public record book. Once you send, that's it. No take-backs. Banks can fix wire mistakes. Not here. Transfers stick forever. a buddy tipped me off right away. Meet Sylvester Bryant. Guy's a pro at pulling back lost crypto. Handles cases others can't touch, he spots scammer moves cold. Follows money down secret paths. Mixers. Fake trades. Hidden swaps. You name it, he tracks it. this happens to tons of folks. Fat-finger a key. Miss one digit in the address. Boom. Billions vanish like that each year. I panicked. Figured my stash was toast for good. Bryant flipped the script. He jumps on hard jobs quick. Digs deep. Cracks the trail. Got my funds back safe. You're in the same boat? Don't sit there. Hit him up today. Email [email protected]. WhatsApp +1 512 577 7957. Or +44 7428 662701. Time's your enemy here. Scammers spend fast. Chains churn non-stop. Move now. Grab your cash back home.

  • 25.11.25 05:15 michaeldavenport218

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 25.11.25 13:31 mickaelroques52

    CRYPTO TRACING AND INVESTIGATION EXPERT: HOW TO RECOVER STOLEN CRYPTO_HIRE RAPID DIGITAL RECOVERY

  • 25.11.25 13:31 mickaelroques52

    I’ve always considered myself a careful person when it comes to money, but even the most cautious people can be fooled. A few months ago, I invested some of my Bitcoin into what I believed was a legitimate platform. Everything seemed right, professional website, live chat support and even convincing testimonials. I thought I had done my homework. But when I tried to withdraw my funds, everything fell apart. My account was blocked, the so-called support team disappeared and I realized I had been scammed. The shock was overwhelming. I couldn’t believe I had fallen for it. That Bitcoin represented years of savings and sacrifices and it felt like everything had been stolen from me in seconds. I didn’t sleep for days and I was angry at myself for trusting the wrong people. In my desperation, I started searching for solutions and came across Rapid Digital Recovery. At first, I thought it was just another promise that would lead nowhere. But after speaking with them, I realized this was different. They were professional, clear and understanding. They explained exactly how they track stolen funds through blockchain forensics and what steps would be taken in my case. I gave them all the transaction details and they immediately got to work. What impressed me most was their transparency, they gave me updates regularly and kept me involved in the process. After weeks of investigation, they achieved what I thought was impossible: they recovered my stolen Bitcoin and safely returned it to my wallet. The relief I felt that day is indescribable. I went from feeling hopeless and broken to feeling like I had been given a second chance. I am forever grateful to Rapid Digital Recovery. They didn’t just recover my money, they restored my peace of mind. If you’re reading this because you’ve been scammed, please know you’re not alone and that recovery is possible. I’m living proof that with the right help, you can get your funds back... Contact Info Below WhatSapp:  + 1 414 807 1485 Email:  rapiddigitalrecovery (@) execs. com Telegram:  + 1 680 5881 631

  • 26.11.25 18:18 harristhomas7376

    "In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 26.11.25 18:20 harristhomas7376

    "In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 26.11.25 19:13 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site

  • 26.11.25 19:13 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site

  • 26.11.25 19:13 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site

  • 27.11.25 10:56 harristhomas7376

    "In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 27.11.25 10:56 harristhomas7376

    "In the crypto world, this is great news I want to share. Last year, I fell victim to a scam disguised as a safe investment option. I have invested in crypto trading platforms for about 10yrs thinking I was ensuring myself a retirement income, only to find that all my assets were either frozen, I believed my assets were secure — until I discovered that my BTC funds had been frozen and withdrawals were impossible. It was a devastating moment when I realized I had been scammed, and I thought my Bitcoin was gone forever, Everything changed when a close friend recommended the Capital Crypto Recover Service. Their professionalism, expertise, and dedication enabled me to recover my lost Bitcoin funds back — more than €560.000 DEM to my BTC wallet. What once felt impossible became a reality thanks to their support. If you have lost Bitcoin through scams, hacking, failed withdrawals, or similar challenges, don’t lose hope. I strongly recommend Capital Crypto Recover Service to anyone seeking a reliable and effective solution for recovering any wallet assets. They have a proven track record of successful reputation in recovering lost password assets for their clients and can help you navigate the process of recovering your funds. Don’t let scammers get away with your hard-earned money – contact Email: [email protected] Phone CALL/Text Number: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 27.11.25 20:04 deborah113

    Scammed Crypto Asset Recovery Solution Hire iFORCE HACKER RECOVERY When I traded online, I lost both my investment money and the anticipated gains.  Before permitting any withdrawals, the site kept requesting more money, and soon I recognized I had been duped.  It was really hard to deal with the loss after their customer service ceased responding.  I saw a Facebook testimonial about how iForce Hacker Recovery assisted a victim of fraud in getting back the bitcoin she had transferred to con artists.  I contacted iForce Hacker Recovery, submitted all relevant case paperwork, and meticulously followed the guidelines.  I'm relieved that I was eventually able to get my money back, including the gains that were initially displayed on my account. I'm sharing my story to let others who have been conned know that you can recover your money. WhatsApp: +1 240-803-3706 Email: iforcehk @ consultant. c om Website: ht tps:/ /iforcehackers. c om

  • 27.11.25 23:48 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 27.11.25 23:48 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 28.11.25 00:08 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected])WhatsApp at +44 736-644-5035. ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it.

  • 28.11.25 11:15 robertalfred175

    CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 28.11.25 11:15 robertalfred175

    CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 28.11.25 11:43 elizabethmadison

    My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site (Email [email protected])

  • 28.11.25 11:43 elizabethmadison

    My name is Elizabeth Madison currently living in New York. There was a time I felt completely broken. I had trusted a fraudulent bitcoin investment organization, who turned out to be a fraudster. I sent money, believing their sweet words and promises on the interest rate I will get back in return, only to realize later that I’ve been scammed. On the day of withdrawal there was no money in my account. The pain hit deep. I couldn’t sleep, I kept asking myself how I could have been so careless, meanwhile my mom was battling with a stroke and the expenses were too much. For days, I cried and blamed myself. The betrayal, the disappointment and my mom's health issues all of this stress made me want to give up on life. But one day, I decided that sitting in pain wouldn’t solve anything. I picked myself up and chose to fight for what I lost then I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how he helped people recover their funds from online fraud. I emailed all the transactions and paperwork I had with the fraudulent organization and they helped me recover all my lost money in just five days. If you have ever fallen victim to scammers, contact GREAT WHIP RECOVERY CYBER SERVICES to help you recover every penny you have lost. (Text +1(406)2729101) Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site (Email [email protected])

  • 29.11.25 12:35 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 29.11.25 12:35 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 29.11.25 12:35 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 30.11.25 20:37 robertalfred175

    CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: 📧 Email: [email protected] 📱 Telegram: @Capitalcryptorecover Contact: [email protected] 📞 Call/Text: +1 (336) 390-6684 🌐 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 01.12.25 12:27 Thomas Muller

    YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with,  website https://greatwhiprecoveryc.wixsite.com/greatwhip-site  text +1(406)2729101 email [email protected]

  • 01.12.25 12:27 Thomas Muller

    YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with,  website https://greatwhiprecoveryc.wixsite.com/greatwhip-site  text +1(406)2729101 email [email protected]

  • 01.12.25 23:45 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 01.12.25 23:45 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 02.12.25 02:21 donald121

    In 2025 alone, hackers stole over $1.5 billion in digital assets from users worldwide. That's a wake-up call for anyone holding crypto. Theft hits hard because once funds move, they're tough to get back. Common ways it happens include phishing emails that trick you into giving up keys, big exchange breaches, or malware sneaking into your wallet. Marie guide walks you through steps to recover stolen cryptocurrency. You'll learn quick actions to stop more loss, how to trace funds, and ways to fight back legally. Plus, tips to avoid this mess next time. reach her (infocyberrecoveryinc@gmail com and whatsapp:+1 7127594675)

  • 02.12.25 15:05 Matt Kegan

    Reach out to SolidBlock Forensics if you want to get back your coins from fake crypto investment or your wallet was compromised and all your coins gone. SolidBlock Forensics provide deep ethical analysis and investigation that enables them to trace these schemes, and recover all your funds. Their services are professional and reliable. 

  • 03.12.25 09:22 tyrelldavis1

    I still recall the day I fell victim to an online scam, losing a substantial amount of money to a cunning fraudster. The feeling of helplessness and despair that followed was overwhelming, and I thought I had lost all hope of ever recovering my stolen funds. However, after months of searching for a solution, I stumbled upon a beacon of hope - GRAYWARE TECH SERVICE, a highly reputable and exceptionally skilled investigative and recovery firm. Their team of expert cybersecurity professionals specializes in tracking and retrieving money lost to internet fraud, and I was impressed by their unwavering dedication to helping victims like me. With their extensive knowledge and cutting-edge technology, they were able to navigate the complex world of online finance and identify the culprits behind my loss. What struck me most about GRAYWARE TECH SERVICE was their unparalleled expertise and exceptional customer service. They took the time to understand my situation, provided me with regular updates, and kept me informed throughout the entire recovery process. Their transparency and professionalism were truly reassuring, and I felt confident that I had finally found a reliable partner to help me recover my stolen money. Thanks to GRAYWARE TECH SERVICE, I was able to recover a significant portion of my lost funds, and I am forever grateful for their assistance. Their success in retrieving my money not only restored my financial stability but also restored my faith in the ability of authorities to combat online fraud. If you have fallen victim to internet scams, I highly recommend reaching out to GRAYWARE TECH SERVICE - their expertise and dedication to recovering stolen funds are unparalleled, and they may be your only hope for retrieving what is rightfully yours. You can reach them on whatsapp+18582759508 web at ( https://graywaretechservice.com/ )    also on Mail: ([email protected]

  • 03.12.25 21:01 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

  • 03.12.25 22:17 Tonerdomark

    I lost $300,000 in USDC to a phishing scam. Scammers tricked me with a fake wallet link. They drained my account fast. I felt hopeless. No way to get it back. Then Sylvester stepped in. His skills traced the funds. He recovered every bit. USDC is a stablecoin tied to the dollar. Phishing scams hit hard in crypto. They fool you with urgent emails or sites. Billions vanish each year this way. Sylvester knows blockchain tracks. He used tools to follow the trail. I got my money back in weeks. Skills like his turn loss to win. Don't wait if scammed. Contact Mr. Sylvester now. Email: yt7cracker@gmail. com. WhatsApp only: + 1 512 577 7957 or + 44 7428 662701. He helped me. He can help you.

  • 04.12.25 01:37 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 04.12.25 01:37 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 04.12.25 04:35 Tonerdomark

    I lost $300,000 in USDC to a phishing scam. Scammers tricked me with a fake wallet link. They drained my account fast. I felt hopeless. No way to get it back. Then Sylvester stepped in. His skills traced the funds. He recovered every bit. USDC is a stablecoin tied to the dollar. Phishing scams hit hard in crypto. They fool you with urgent emails or sites. Billions vanish each year this way. Sylvester knows blockchain tracks. He used tools to follow the trail. I got my money back in weeks. Skills like his turn loss to win. Don't wait if scammed. Contact Mr. Sylvester now. Email: [email protected]. WhatsApp only: + 1 512 577 7957 or + 44 7428 662701. He helped me. He can help you.

  • 04.12.25 10:32 Tonerdomark

    I lost $300,000 in USDC to a phishing scam. Scammers tricked me with a fake wallet link. They drained my account fast. I felt hopeless. No way to get it back. Then Sylvester stepped in. His skills traced the funds. He recovered every bit. USDC is a stablecoin tied to the dollar. Phishing scams hit hard in crypto. They fool you with urgent emails or sites. Billions vanish each year this way. Sylvester knows blockchain tracks. He used tools to follow the trail. I got my money back in weeks. Skills like his turn loss to win. Don't wait if scammed. Contact Mr. Sylvester now. Email: [email protected]. WhatsApp only: + 1 512 577 7957 or + 44 7428 662701. He helped me. He can help you.

  • 04.12.25 18:25 smithhazael

    Hire Proficient Expert Consultant For any form of lost crypto "A man in Indonesia tragically took his own life after losing his family's savings to a scam. The shame and blame were too much to bear. It's heartbreaking to think he might still be alive if he knew help existed. "PROFICIENT EXPERT CONSULTANTS, I worked alongside PROFICIENT EXPERT CONSULTANTS when I lost my funds to an investment platform on Telegram. PROFICIENT EXPERT CONSULTANTS did a praiseworthy job, tracked and successfully recovered all my lost funds a total of $770,000 within 48hours after contacting them, with their verse experience in recovery issues and top tier skills they were able to transfer back all my funds into my account, to top it up I had full access to my account and immediately converted it to cash, they handled my case with professionalism and empathy and successfully recovered all my lost funds, with so many good reviews about PROFICIENT EXPERT CONSULTANTS, I’m glad I followed my instincts after reading all the reviews and I was able to recovery everything I thought I had lost, don’t commit suicide if in any case you are caught in the same situation, contact: Proficientexpert@consultant. com Telegram: @ PROFICIENTEXPERT, the reliable experts in recovery.

  • 04.12.25 21:45 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 04.12.25 21:45 elizabethrush89

    God bless Capital Crypto Recover Services for the marvelous work you did in my life, I have learned the hard way that even the most sensible investors can fall victim to scams. When my USD was stolen, for anyone who has fallen victim to one of the bitcoin binary investment scams that are currently ongoing, I felt betrayal and upset. But then I was reading a post on site when I saw a testimony of Wendy Taylor online who recommended that Capital Crypto Recovery has helped her recover scammed funds within 24 hours. after reaching out to this cyber security firm that was able to help me recover my stolen digital assets and bitcoin. I’m genuinely blown away by their amazing service and professionalism. I never imagined I’d be able to get my money back until I complained to Capital Crypto Recovery Services about my difficulties and gave all of the necessary paperwork. I was astounded that it took them 12 hours to reclaim my stolen money back. Without a doubt, my USDT assets were successfully recovered from the scam platform, Thank you so much Sir, I strongly recommend Capital Crypto Recover for any of your bitcoin recovery, digital funds recovery, hacking, and cybersecurity concerns. You reach them Call/Text Number +1 (336)390-6684 His Email: [email protected] Contact Telegram: @Capitalcryptorecover Via Contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 05.12.25 08:35 into11

    The digital world of cryptocurrency offers big chances, but it also hides tricky scams. Losing your crypto to fraud feels awful. It can leave you feeling lost and violated. This guide tells you what to do right away if a crypto scam has hit you. These steps can help you get funds back or stop more trouble. Knowing what to do fast can change everything,reach marie ([email protected] and whatsapp:+1 7127594675)

  • 05.12.25 08:48 Tonerdomark

    SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]

  • 06.12.25 01:44 Tonerdomark

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  • 06.12.25 01:48 Tonerdomark

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  • 06.12.25 10:36 Thomas Muller

    YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with,  website https://greatwhiprecoveryc.wixsite.com/greatwhip-site  text +1(406)2729101 email [email protected]

  • 06.12.25 10:36 Thomas Muller

    YOU CAN REACH OUT TO GREAT WHIP RECOVERY CYBER SERVICES FOR HELP TO RECOVER YOUR STOLEN BTC OR ETH BACK WHATSAPP +1(208)713-0697 I once fell victim to online investment scheme that cost me a devastating €254,000. I’m Thomas Muller from Berlin, Germany. The person I trusted turned out to be a fraud, and the moment I realized I’d been deceived, my entire world stopped. I immediately began searching for legitimate ways to recover my funds and hold the scammer accountable. During my search, I came across several testimonies of how Great Whip Recovery Cyber Services helped some people recover money they lost to cyber fraud, I contacted Great Whip Recovery Cyber Service team and provided all the evidence I had. Within about 36 hours, the experts traced the digital trail left by the fraudster, the individual was eventually tracked down and I recovered all my money back. You can contact them with,  website https://greatwhiprecoveryc.wixsite.com/greatwhip-site  text +1(406)2729101 email [email protected]

  • 06.12.25 10:39 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 06.12.25 10:42 michaeldavenport238

    I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR Call Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1

  • 07.12.25 08:43 Tonerdomark

    SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]

  • 08.12.25 02:17 liam

    I recently fell a victim of cryptocurrency investment and mining scam, I lost almost all my life savings to BTC scammers. I almost gave up because the amount of crypto I lost was too much. So I spoke to a friend who told me about ANTHONYDAVIESTECH company. I Contacted them through their email and i provided them with the necessary information they requested from me and they told me to be patient and wait to see the outcome of their job. I was shocked after two days my Bitcoin was returned to my Wallet. All thanks to them for their genius work. I Contacted them via Email: anthonydaviestech @ gmail . com all thanks to my friend who saved my life

  • 08.12.25 09:07 Tonerdomark

    SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = [email protected]

  • 09.12.25 00:18 swanky

    For a long time, I had heard tales of individuals striking it rich through cryptocurrency investments, but I had little knowledge of how the system operated. The potential for financial gain piqued my interest, and I decided to dive in and invest. To help me navigate this complex landscape, I joined a group of online traders who promised to guide me through the investment process. Their confidence and expertise made me feel reassured about my decision.After spending some time learning from them and observing their trading strategies, I felt compelled to invest a substantial amount of money to which i lost, now in search of recovering my funds i got referred to anthonydavies on telegram a funds recovery specialist with his team help i was able to get back $300000 of my usdc back. you can reach him via anthonydaviestech AT gmail dot com

  • 09.12.25 01:01 Tonerdomark

    SYLVESTER BRYANT WAS A PROFESSIONAL/ RELIABLE HACKER AND HIGHLY RECOMMENDED I’m very excited to speak about him as a Bitcoin Recovery agent, this cyber security company was able to assist me in recovering my stolen funds in cryptocurrency. I’m truly amazed by their excellent service and professional work. I never thought I could get back my funds until I approached them with my problems and provided all the necessary information. It took them time to recover my funds and I was amazed. Without any doubt, I highly recommend Sylvester for your BITCOIN, USDC, USDT, ETH Recovery, for all Cryptocurrency recovery, digital funds recovery, hacking Related issues, contact Sylvester Bryant professional services waapp only= +1 512 577 7957 or + 44 7428 662701 EMAIL = Yt7CRACKER@gmail. com

  • 09.12.25 05:44 swanky

    For a long time, I had heard tales of individuals striking it rich through cryptocurrency investments, but I had little knowledge of how the system operated. The potential for financial gain piqued my interest, and I decided to dive in and invest. To help me navigate this complex landscape, I joined a group of online traders who promised to guide me through the investment process. Their confidence and expertise made me feel reassured about my decision.After spending some time learning from them and observing their trading strategies, I felt compelled to invest a substantial amount of money to which i lost, now in search of recovering my funds i got referred to anthonydavies on telegram a funds recovery specialist with his team help i was able to get back $300000 of my usdc back. you can reach him via anthonydaviestech AT gmail dot com

  • 09.12.25 10:24 lane3215

    It is distressing to lose USDT to a bitcoin wallet hack. Although challenging, recovering stolen USDT is feasible. Your chances increase if you move swiftly and strategically. Marie can help you with reporting the theft, recovering USDT, and taking immediate action. You can reach her via mail at [email protected], WhatsApp at +1 7127594675.

  • 09.12.25 10:25 lane3215

    It is distressing to lose USDT to a bitcoin wallet hack. Although challenging, recovering stolen USDT is feasible. Your chances increase if you move swiftly and strategically. Marie can help you with reporting the theft, recovering USDT, and taking immediate action. You can reach her via mail at [email protected], WhatsApp at +1 7127594675.

  • 09.12.25 14:16 Matt Kegan

    Grateful i came across SolidBlock Forensics. After investing in crypto trade and couldn't make withdrawals, it dawned on me something was wrong. They kept on asking for taxes, fees for maintenance, and more money for admin reasons. But being represented by SolidBlock Forensics, i was able to file reports, and finally, received all my investments with returns. Its great to know we have professionals that handle such issues and get the job done. 

  • 12.12.25 22:38 swanky

    After reading some reviews on how [anthonydaviestech AT gmail dot (c om) helps people recover money and Cryptocurrencies lost to scammers, I decided to contact him to help me recover mine which I lost in february 2025. To my surprise he was able to trace the USDT from the first wallet to all the wallets it has been sent to. He moved them out of those wallets and returned them back to mine and even added extra to me, it felt like magic.

  • 13.12.25 08:22 Natasha Williams

    I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101

  • 13.12.25 08:23 Natasha Williams

    I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101

  • 13.12.25 08:28 Natasha Williams

    I am Natasha Williams from Dallas. I want to share my testimony to encourage anyone who has ever fallen victim to a scam or fraud. Some time ago, I was defrauded by some fraudulent cryptocurrency investment organization online, I was a victim and I lost a huge amount of money, $382,000. I felt angry, disappointed and helpless but I refused to give up and stay calm. I came across this agency, GREAT WHIP RECOVERY CYBER SERVICES.. who helped people recover their money from scammers and the testimonies I saw were quite amazing. And I decided to contact them. I gathered every piece of evidence, chats, receipts, account details, and messages and reported the case to the agency, GREAT WHIP RECOVERY CYBER SERVICES. After 73hours of follow up and not losing faith, the fraudster was traced and held accountable and I recovered all my money back. I highly recommend, GREAT WHIP RECOVERY CYBER SERVICES agency if you have ever fallen victim to scammers, you can contact them. Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site email: [email protected] Call Line: +1(406)2729101

  • 13.12.25 15:29 Anthonymorphy30

    ⬛️ ARE YOU SEEKING TO RECOVER YOUR LOST FUNDS FROM INVESTMENT/TRADING SCAM OR ROMANCE SCAM??? OR YOU NEED LEGIT HACKING SERVICES SUCH AS PHONE HACK, WEBSITE HACK AND MORE????? TAKE YOUR TIME TO READ ⬛️ ⬛️ We have received numerous complaints of fraud associated with Romance Scam, websites that offers opportunities for Capital Investments, bitcoin investments and Trading on an Internet-based trading platforms. Most Of theese complaints falls into these theee categories: 1. 🔘Refusal to credit customers accounts or reimburse funds to customers: These complaints typically involves customers who have deposited money into their trading or investment account and eventually got deprived from withdrawing their capital and profits by the trading platforms. 2. 🔘Manipulation of software to generate losing trades: These complaints alleged that the Internet-based Investment and trading platforms manipulate the trading software to distort the Trading prices and payouts in order to ensure that the trade results in a Loss. 3. 🔘 Romance Scam where a scammer pretends to have romantic interest in someone to gain their trust—and then uses that trust to steal money or personal information. ⬛️ Most people have lost their hard earned money through these types of Scams but don’t know how to get a Legitimate Funds Recovery Expert. Truth be told, the only Specialists that is capable of retrieving your lost funds to these scams are Team of professional hackers and cyber forensic experts and this is where FUNDS RETRIEVAL PANEL comes in. FUNDS RETRIEVAL PANEL is an amalgamation of top notch Hackers, Cyber forensic Experts, Software Engineers and Backend Gurus who are dedicated to helping victims retrieve their Lost funds from online scams and frauds. We are the Leading Funds Recovery Expert who know various Retrieval Techniques and Strategies that suits different scenarios of Scam. With years of experience in the financial and tech sectors, we are the trusted solution for individuals looking to recover lost money. CONTACT US NOW to schedule your free consultation and start the process of recovering your funds. 🌍 www.fundsretrievalpanel.com 🌍 📩 [email protected]✉️ ☑️ We Also have a segregated Department that focuses on other LEGIT HACKING SERVICES SUCH AS: ▪️ PHONE HACKING & CLONING : very useful for getting evidence from someone else’s phone by gaining full access to all they do on their phones. ▪️ WEBSITE AND DATABASE HACKING 💻 ▪️ SOCIAL MEDIA ACCOUNTS HACKING 📱 ▪️LOCATION TRACKING 📌 CONTACT: 📩 [email protected]

  • 13.12.25 18:52 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101

  • 13.12.25 18:54 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101

  • 18.12.25 12:12 Anthony Irvin

    I forgot my password 🔑 -- But they helped me recover my entire wallet. Successful Brute-Force Hack... On January 16, 2023, INTELLIGENCE CYBER WIZARD successfully hacked my Langerhans.DAT Android DOGECOIN wallet to recover the lost/forgotten spending PIN, necessary for spending funds. It took them only three (3) days to complete the task. It turned out that the spending PIN was only ten (10) digits long, which I had mistakenly believed to be twelve. Once Intelligence Cyber Wizard discovered and recited the full ten-digit PIN to me, based on "clues" I had given them and that only I knew, it reminded me a bit of when I set up the PIN back in 2015. In my case, I made the mistake of not writing it down. The wallet file in this case contained a little over 10.5 million DOGECOINs installed on it, spread across a total of 15 DOGE public wallet addresses and their corresponding private keys. When I acquired the 10.5 million coins in 2015, the total cost to me was only around $1,500, based on the current face value of DOGE at the time, which was approximately $0.0001 per coin. The wallet file had been inaccessible to me since December 27, 2015, after I realized I had forgotten my spending PIN. Before finding Intelligence Cyber Wizard, I had had several other encounters with people who were unsuccessful in recovering the wallet's spending PIN. So, as it turned out, I actually ended up much better off financially because I had forgotten my spending PIN. Had I not forgotten, I would have traded or sold the 10.5 million coins in question during the 2017 cryptocurrency bull run, along with another 40 million DOGECOIN that I sold that year. Even after accounting for a portion of the recovered coins that was awarded to Intelligence Cyber Wizard for their efforts, I still gained a significant financial advantage. Therefore, I am deeply grateful to Intelligence Cyber Wizard, for the swift and successful recovery of my wallet. Their efforts have undoubtedly had a truly transformative impact on my life in the long run. I highly recommend Intelligence Cyber Wizard services if you or someone you know has a wallet that needs hacking and whose password or spending PIN has been lost or forgotten. Contact Intelligence Cyber Wizard via WhatsApp or email. WhatsApp +1 (219) 424-7566 Email: intelligencecyberwizard @ gmail.com Email: intelligencecyberwizard @ cyber-wizard.com Website: https: //intelligence-cyber-wizard.web node.page

  • 18.12.25 13:24 Regency Victorian

    I was scammed and left penniless, until a cryptocurrency recovery expert helped me. INTELLIGENCE CYBER WIZARD - Cryptocurrency Recovery. I was scammed out of a huge amount of money and, devastated, I started looking for help. Someone recommended an expert and private investigator, Intelligence Cyber Wizard. I emailed him, and as soon as I explained what had happened, he immediately told me it had all been a setup. He put my case together, and within a few days, we got a result: I recovered all my money! Intelligence Cyber Wizard was amazing, professional, and efficient; he guided me through the entire process. I can't thank him and his forensic team enough. I can live again! His contact information is below. WhatsApp +1 (219) 424-7566 Email: [email protected] Email: [email protected] Website: https://intelligence-cyber-wizard.webnode.page

  • 18.12.25 20:54 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101

  • 18.12.25 20:55 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101

  • 18.12.25 21:02 James Robert

    This company call GREAT WHIP RECOVERY CYBER SERVICES was honest from the beginning. No false promises – just results. Call:+1(406)2729101

  • 18.12.25 21:02 James Robert

    I am James Robert from Chicago. Few months ago, I fell victim to an online Bitcoin investment scheme that promised high returns within a short period. At first, everything seemed legitimate, their website looked professional, and the people behind it were very convincing. I invested a significant amount of money about $440,000 with the way they talk to me into investing on their bitcoin platform. Two months later I realized that it was a scam when I could no longer have  access to  my account and couldn’t withdraw my money. At first, I lost hope that I wouldn't be able to get my money back, I cried and was angry at how I even fell victim to a scam. For days after doing some research and seeking professional help online, I came across GREAT WHIP RECOVERY CYBER SERVICES and saw how they have helped people recover their money back from scammers. I reported the case immediately to them and gather every transaction detail, documentation and sent it to them. Today, I’m very happy because the GREAT WHIP RECOVERY CYBER SERVICES help me recover all my money I was scammed. You can contact GREAT WHIP RECOVERY CYBER SERVICES if you have ever fallen victim to scam. Email: [email protected] or Website https://greatwhiprecoveryc.wixsite.com/greatwhip-site or Call +1(406)2729101

  • 20.12.25 16:03 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

  • 06.01.26 00:54 justineluscacio

    I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin.  I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900) 

  • 06.01.26 15:05 justineluscacio

    I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin.  I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900) 

  • 06.01.26 16:06 justineluscacio

    Successful Bitcoin Recovery Testimonials in Europe, USA, UK, Asia, Canada, South Africa.

  • 06.01.26 16:07 justineluscacio

    Successful Bitcoin Recovery Testimonials in Europe, USA, UK, Asia, Canada, South Africa. BITCOIN RECOVERY EXPERT USDT RECOVERY EXPERT ETH RECOVERY EXPERT How do I hire a hacker to help me recover my lost funds? How to Recover Money Lost to an Online Scam How to recover lost or stolen cryptocurrency Best recovery experts for cryptocurrency DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)

  • 06.01.26 16:14 justineluscacio

    I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin.  I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900) 

  • 06.01.26 17:03 Matt Kegan

    Reach out to SolidBlock Forensics if you want to get back your coins from fake crypto investment or your wallet was compromised and all your coins gone. SolidBlock Forensics provide deep ethical analysis and investigation that enables them to trace these schemes, and recover all your funds. Their services are professional and reliable.  http://www.solidblockforensics.com

  • 09.01.26 17:11 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

  • 10.01.26 14:28 justineluscacio

    I hope this review gets to as many as possible because I am sure it will save many. On March 15, I received a message on Telegram inviting me to join a Cryptocurrency investment group. At first, I thought it was a harmless invitation. I joined and began to see how a specific crypto and forex trader was helping many people and even gifting out Bitcoin to his loyal followers. I was thrilled; many people in the group were reporting their daily successes and how they were earning a substantial amount. I was jealous; I saw people making a lot of money, but not me. I became furious and decided to contact the group's admin, not realizing I had fallen for their trap. That Telegram channel was a hoax, controlled by an organized team of scammers. Within 3 months of being on that platform, I had given out a whopping 11 Bitcoin in total. I was lost when I was logged out of the investment website and blocked from accessing their Telegram channel. I tried all the means I could think of at that moment, all to no avail. It went from days to weeks, and I still couldn't get back my lost Bitcoin. I was on Medium when I came across a review about digital assets recovery companies. There were quite a few of them, but DuneNectarOnlineExpert caught my attention. I copied their email ( Support @ Dunenectaronlineexpert . Com ), filed a report, and my task was attended to with utmost urgency. After back and forth with this team of cybersecurity experts, DuneNectarOnlineExpert successfully traced the Bitcoin to the scammers' wallet, and it was successfully reclaimed. The team of DuneNectarOnlineExpert was incredibly helpful in recovering my lost Bitcoin. Telegram: T.me/Dunenectarwebexpert WhatApp: +(1252-271-8900)

  • 11.01.26 03:16 austinjarvis

    I lost £75,000 in a Bitcoin scam. Scammers used deepfake videos to make it seem like Elon Musk himself pitched the deal. These deepfakes swap faces onto real people with AI. They look so real you can't spot the trick at first. They drew me in with talk of fast cash. Double your money in weeks, they said. Videos showed Musk explaining simple steps to join. I bit. Sent my Bitcoin bit by bit. First small amounts worked. Then I dumped my full savings. Boom. Funds vanished. No more contact. My bank account empty. Bills piled up. Loans to cover rent and food. Sleep gone. Stress hit hard. Felt like my whole life crashed. A mate saw my pain. He shared his own story from last year. Same scam type. He pointed me to Sylvester, a recovery agent. Reach him at Yt7cracker@gmail . com. Or WhatsApp + 1 512 577 7957. Or + 44 7428 662701. Sylvester got to work fast. Tracked the blockchain trails. Dealt with exchanges. Fought the scammers' tricks. Weeks later, my Bitcoin came back. Even the profits they promised. Debt lifted. Life back on track. If you're hit, contact him now.

  • 12.01.26 16:24 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

  • 13:04 Kelvin Alfons

    Hello everyone. I’d like to share my personal experience from one of the most challenging times in my life. I’m based in Sydney, Australia, and on November 13, 2025, I fell victim to a fraudulent cryptocurrency investment platform that promised substantial financial growth.  Believing their claims, I invested a total of $220,000 with the expectation of earning solid returns. However, when I attempted to withdraw my funds, all communication abruptly stopped. My calls were ignored, my emails went unanswered, and I was left feeling completely powerless. Like many others, I had heard that Bitcoin transactions are impossible to trace, so I assumed my money was lost forever.  After some time, I discovered information about GREAT WHIP RECOVERY CYBER SERVICES, a reputable digital asset recovery firm. I decided to reach out to them, and to my astonishment, they were able to help me recover the full amount I had lost.  I’m sharing my story in the hope that it may help someone else who is going through a similar situation and looking for support. Their contact is, Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site Email:[email protected] Call: +1(406)2729101

  • 13:05 Kelvin Alfons

    Hello everyone. I’d like to share my personal experience from one of the most challenging times in my life. I’m based in Sydney, Australia, and on November 13, 2025, I fell victim to a fraudulent cryptocurrency investment platform that promised substantial financial growth.  Believing their claims, I invested a total of $220,000 with the expectation of earning solid returns. However, when I attempted to withdraw my funds, all communication abruptly stopped. My calls were ignored, my emails went unanswered, and I was left feeling completely powerless. Like many others, I had heard that Bitcoin transactions are impossible to trace, so I assumed my money was lost forever.  After some time, I discovered information about GREAT WHIP RECOVERY CYBER SERVICES, a reputable digital asset recovery firm. I decided to reach out to them, and to my astonishment, they were able to help me recover the full amount I had lost.  I’m sharing my story in the hope that it may help someone else who is going through a similar situation and looking for support. Their contact is, Website: https://greatwhiprecoveryc.wixsite.com/greatwhip-site Email:[email protected] Call: +1(406)2729101

  • 15:53 VERONICAFREDDIE809

    Earlier this year, I made a mistake that changed everything. I downloaded what I thought was a legitimate trading app I’d found through a Telegram channel. At first, everything looked real until I tried to withdraw. My entire investment vanished into a bot account, and that’s when the truth hit me: I had been scammed. I can’t describe the feeling. It was as if the ground dropped out from under me. I blamed myself. I felt stupid, ashamed, helpless every painful emotion at once. For a while, I couldn’t even talk about it. I thought no one would understand. But then I found someone Agent Jasmine Lopez ([email protected]) ,She didn’t brush me off or judge me. She took my fear seriously. She followed leads I didn’t even know existed, and identified multiple off-chain indicators and wallet clusters linked to the scammer network, she helped me understand what had truly happened behind the scenes. For the first time since everything fell apart, I felt hope. Hearing that other people students, parents, hardworking people had been targeted the same way made me realize I wasn’t alone. What happened to us wasn’t stupidity. It was a coordinated attack. We were prey in a system built to deceive. And somehow, through all the chaos, Agent Jasmine stepped in and shined a light into the darkest moment of my life. I’m still healing from the experience. It changed me. But it also reminded me that even when you think you’re at the end, sometimes a lifeline appears where you least expect it. Contact her at [email protected] WhatsApp at +44 736-644-5035.

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