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Исследуем возможности ИИ писать код. Часть 1
ОглавлениеОтвет КлодаОтвет КлодаОтвет Клода
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:
Проверить, насколько качественный и жизнеспособный код генерирует ИИ.
Разобраться, действительно ли ИИ способен заменить разработчиков и можно ли без технических знаний создать работающее приложение.
Сравнить выдачу нескольких LLM (Anthropic Claude 3.5, OpenAI ChatGPT-4o, OpenAI ChatGPT o1-preview, Deepseek R1) и удобство работы с ними.
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
"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.
"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 КлодаLet me analyze your requirements:
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
Questions for clarification:
Should category_id in both tables be auto-incrementing?
What should be the maximum lengths for varchar fields (category_name, category_description, operation_public_id, operation_name)?
Should any of these fields be nullable?
For operation_amount, how many digits before and after decimal point do you need?
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:
As a VARCHAR field with a check constraint limiting values to 'DEPOSIT' and 'WITHDRAW'
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 КлодаThank 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?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.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 secondsFor 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: falseКлод 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 secondsСоздаём 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"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: strongPasswordКлод 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'.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.yamlCreate the master changelog file (db.changelog-master.yaml):
databaseChangeLog:
- include:
file: changes/001-initial-schema.yaml
relativeToChangelogFile: trueMove 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.yamlAfter creating these files and directories:
Put the master changelog content into
db.changelog-master.yamlPut 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.
Ответ КлодаI've added a changelog to the master file, but when I run the application, a new error occurs: permission denied for schema anthropic_claude
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.sqlAfter 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.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
Categoryпропало полеdescription.В
Operationнеожиданно появилосьoperationDate.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
@EqualsAndHashCodeи@Dataнеявно 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.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:
It provides consistent behavior with database identity
It avoids issues with lazy loading
It works well with collections and hibernate's first-level cache
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 = 0дляid = null, что может снизить производительностьHashSetиHashMap, если там будет множество объектов сhashCode = 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 CREATE – контроллер → 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 КлодаI'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(() -> 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> 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– разделилreadOnly-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
idкатегории), но это ещё хуже – создаётся ложное ощущение, что всё работает правильно.
Не уточнил, какие поля должны быть в DTO.
Из-за этого он вытянул
categoryIdнаружу, хотя это не критично.
Ошибся с
@Transactional.Я явно указал DAO-слой, но Клод повесил
@Transactionalна 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 текстYou 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:
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
Questions for clarification:
Should category_id in both tables be auto-incrementing?
What should be the maximum lengths for varchar fields (category_name, category_description, operation_public_id, operation_name)?
Should any of these fields be nullable?
For operation_amount, how many digits before and after decimal point do you need?
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:
As a VARCHAR field with a check constraint limiting values to 'DEPOSIT' and 'WITHDRAW'
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
Questions for clarification:
Yes, category_id and operation_id should be auto-incremented
For category_name, operation_public_id and operation_name - varchar(255), and for category_description (varchar 1000)
Nullable fields: category_description
20 digits before decimal point and 2 after
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 secondsFor 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: falseTo use these profiles, you can:
Add in your main application.yml:
spring:
profiles:
active: dev # or prodOr set it via command line:
java -jar your-app.jar --spring.profiles.active=devOr set it via environment variable:
export SPRING_PROFILES_ACTIVE=devFor production environment, it's recommended to:
Use environment variables for sensitive data
Never commit real credentials to version control
Use strong passwords
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 && 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 && 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:
ИИ зашёл в тупик и выдаёт некорректные решения.
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 КлодаThank 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(() -> 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:
Создание всех CRUD-операций сразу.
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.Let me design the UPDATE logic step by step:
Components needed:
Controller endpoint for PUT/PATCH request
Service method for update logic
DTO for update request
Mapper update method
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(() -> 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:
Единый
ExceptionHandler– можно обрабатыватьNotFoundException, а не кучу отдельных классов.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:
Получение всех операций с пагинацией.
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.Let me design the FIND logic step by step:
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)
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<>();
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(() -> 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:
Get a paginated list of operations:
GET /api/v1/operations?page=0&size=20&sortBy=operation_id&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
}
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:
PageResponseсделан 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.Let me design the DELETE logic step by step:
Components needed:
Controller endpoint for DELETE request
Service method for delete operation
Repository method (will use existing findByPublicId)
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 КлодуThis 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 && id.equals(operation.id);
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : super.hashCode();
}
}
</example>
Add validation for "create operation" logic.
I'll add validation for the create operation logic. Let's implement it step by step:
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
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<>();
@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 ->
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(() -> 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:
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"
}
]
}
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.The issue is likely because the validation dependencies and configuration are missing. Let's fix this:
First, add the validation dependency to your
pom.xml:
org.springframework.boot
spring-boot-starter-validation
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
}
Double-check that your controller has the
@Validannotation 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);
}
}
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;
}
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 ->
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;
}
}
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 КлодуThis 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(() -> 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 -> updateOperation(operation, request))
.orElseThrow(() -> 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(() -> new RuntimeException("Operation not found"));
return operationMapper.toDto(operation);
}
@Transactional
public void deleteOperation(String publicId) {
final var operation = operationRepository.findByPublicId(publicId)
.orElseThrow(() -> 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)
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 & Assert
assertThrows(CategoryNotFoundException.class,
() -> 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 & Assert
assertThrows(RuntimeException.class,
() -> 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<>(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 & Assert
assertThrows(RuntimeException.class,
() -> 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 & Assert
assertThrows(RuntimeException.class,
() -> 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 вcreateOperation.
Как лучше?
Либо использовать
verifyтолько наvoidметодах.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:
Ищет категорию в БД
Маппит
OperationCreateRequestвOperationУстанавливает категорию в объект
OperationСохраняет 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
operationServiceвместоsut(System Under Test), по второму варианту сразу видно, какой сервис тестируетсяГенерация 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 КлодуWrite 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;
}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<>();
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_NotFounddeleteOperation_NotFoundupdateOperation_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 требованиями – остаются 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.
p.s. Если было интересно, заходи https://t.me/nizeEcho
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06.09.25 18:52
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
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08.09.25 14:26
bajo171
Recovery experts and lawyers work together to get your stolen money back. They find lost assets. Lawyers guide you through legal steps. Watch out for scam signs. Be careful of offers promising big profits with no risk. Don't let anyone rush your investment decisions. Marie can help you get back lost Bitcoin. She also helps stop future scams. Contact her on WhatsApp at +1 7127594675. You can also email her at [email protected] or reach her on Telegram at @Marie_consultancy.
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08.09.25 18:04
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
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08.09.25 18:04
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
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08.09.25 19:21
DAVEortega1010
Be wary of fraudulent cryptocurrency recovery services. Many promise to recover your lost digital currency. These services often provide excuses or fail to deliver any results. This only adds to your distress. After several unsuccessful attempts with others, I discovered a genuine expert. This individual was highly capable and provided excellent assistance. They successfully recovered my stolen cryptocurrency. I was finally able to find peace of mind. If you have lost crypto, you should contact them. talk to [email protected] for help. You can also send a text message via WhatsApp to +447366445035, Stop losing time on scams. They can help you get your money back.
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09.09.25 02:34
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
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09.09.25 02:34
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
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09.09.25 02:34
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
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09.09.25 11:48
Moises Velez
I strongly advise using this very reputable Recovery Hacker101for anyone looking to recover any type of crypto currencies assets from online frauds, Wallet hackers, or BTC transferred to the wrong address. After I lost a lot of money to those terrible con artists posing as recovery specialists, this recovery specialist was great in aiding me in getting my Bitcoin back. After I gave Recovery Hacker101 the relevant details and prerequisites, a total of 1.4170 BTC was eventually recovered. I was overjoyed that I had been able to recover this much after having lost even more to the problems I had dealt with before discovering Recovery Hacker101. So don’t hesitate to get in touch with recoveryhacker101 AT gmail com. if you find yourself in this scenario and need help recovering from an online bitcoin scam
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09.09.25 15:05
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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09.09.25 15:05
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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09.09.25 15:05
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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09.09.25 20:23
Bramfloris
Recovering Stolen USDT If your USDT or other crypto assets were stolen, contact Sylvester Bryant at Yt7cracker@gmail. com. He can help you get your money back. I lost €220,000 in a scam. Mr. Bryant was the only expert who successfully recovered my funds. Reach him on WhatsApp at +1 512 577 7957 for fast, expert help. He is very honest. He can recover your stolen assets.
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09.09.25 20:37
DAVEortega1010
Be wary of fraudulent cryptocurrency recovery services. Many promise to recover your lost digital currency. These services often provide excuses or fail to deliver any results. This only adds to your distress. After several unsuccessful attempts with others, I discovered a genuine expert. This individual was highly capable and provided excellent assistance. They successfully recovered my stolen cryptocurrency. I was finally able to find peace of mind. If you have lost crypto, you should contact them. talk to [email protected] for help. You can also send a text message via WhatsApp to +447366445035, Stop losing time on scams. They can help you get your money back.
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10.09.25 00:45
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
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10.09.25 00:45
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
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11.09.25 03:31
DAVEortega1010
Be wary of fraudulent cryptocurrency recovery services. Many promise to recover your lost digital currency. These services often provide excuses or fail to deliver any results. This only adds to your distress. After several unsuccessful attempts with others, I discovered a genuine expert. This individual was highly capable and provided excellent assistance. They successfully recovered my stolen cryptocurrency. I was finally able to find peace of mind. If you have lost crypto, you should contact them. talk to [email protected] for help. You can also send a text message via WhatsApp to +447366445035, Stop losing time on scams. They can help you get your money back.
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11.09.25 13:44
grace
i fell for an investment scam also and lost $250k worth of bitcoin luckily i found anthonydavies01 on telegram with his assistance i got back over 85% of my money. him and his team are top notch
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11.09.25 15:03
stevensjonas
Recovery of Stolen Ethereum Wallet. Hire: Supreme Peregrine Recovery. I would like to express my sincere gratitude to Supreme Peregrine Recovery for their outstanding help in recovering my stolen Ethereum wallet, which held $594,684 worth of assets. I thought my money was lost forever after falling for a scam that imitated a reliable cryptocurrency platform, but I was referred to them because their staff was professional, knowledgeable, and genuinely concerned from the start. Their commitment, openness, and expertise are unparalleled. I am immensely appreciative of their assistance and heartily recommend Supreme Peregrine Recovery to anyone dealing with cryptocurrency theft. They transformed a nightmare into a tale of hope and recovery. They carefully examined my case, gave me clear updates at every stage, and used cutting-edge Blockchain tracing tools to recover the entire amount. +1,3,1,8,5,5,3,0,6,7,9 Mail: supremeperegrinerecovery(@)proton(.)me supremeperegrinerecovery567(@)zohomail(.)com info(@)supremeperegrinerecovery(.)com
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11.09.25 18:51
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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11.09.25 18:51
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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11.09.25 18:51
patricialovick86
How To Recover Your Bitcoin Without Falling Victim To Scams: A Testimony Experience With Capital Crypto Recover Services, Contact Telegram: @Capitalcryptorecover Dear Everyone, I would like to take a moment to share my positive experience with Capital Crypto Recover Services. Initially, I was unsure if it would be possible to recover my stolen bitcoins. However, with their expertise and professionalism, I was able to fully recover my funds. Unfortunately, many individuals fall victim to scams in the cryptocurrency space, especially those involving fraudulent investment platforms. However, I advise caution, as not all recovery services are legitimate. I personally lost $273,000 worth of Bitcoin from my Binance account due to a deceptive platform. If you have suffered a similar loss, you may be considering crypto recovery, The Capital Crypto Recover is the most knowledgeable and effective Capital Crypto Recovery Services assisted me in recovering my stolen funds within 24 hours, after getting access to my wallet. Their service was not only prompt but also highly professional and effective, and many recovery services may not be trustworthy. Therefore, I highly recommend Capital Crypto Recover to you. i do always research and see reviews about their service, For assistance finding your misplaced cryptocurrency, get in touch with them, They do their jobs quickly and excellently, Stay safe and vigilant in the crypto world. Contact: [email protected] You can reach them via email at [email protected] OR Call/Text Number +1 (336)390-6684 his contact website: https://recovercapital.wixsite.com/capital-crypto-rec-1
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12.09.25 13:11
grace
I lost my money to them few months ago. I lost over $244,000, they denied my withdrawal request and and also left it pending. I reached out to them and they never responded back tooth my emails and calls. They eventually locked me out of my account. I had to reach out to a recovery expert ( anthonydaviestech@gmail com) to help me recover all my money back. I have gotten my money back**you can also text him via whatsapp: +19514908435
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12.09.25 15:06
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
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12.09.25 15:06
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
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13.09.25 20:45
Clinton
I know firsthand how devastating it feels to lose money to a scam. When it happened to me, I was left frustrated, hopeless, and unsure where to turn. Complaining to apps about being scammed on their platforms didn’t change anything it felt like no one cared. But through a friend’s advice, I connected with a recovery professional who gave me real hope. With their help, I was able to get my funds back, something I thought was impossible. I’m sharing this because I don’t want anyone else to feel as lost as I once did. Whether you’ve been scammed through crypto platforms, dating scams, real-estate or mortgage fraud, or even fake ICOs, please know there’s still a way forward. If you’ve lost money, reach out to Recoveryfundprovider(@)gmail(.)com).) or (WhatsApp) at (+)44 7366445035 for consultation and recovery services.
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14.09.25 00:54
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
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14.09.25 00:54
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
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14.09.25 02:37
luciajessy3
Don’t be deceived by different testimonies online that is most likely wrong. I have made use of several recovery options that got me disappointed at the end of the day but I must confess that the tech genius I eventually found is the best out here. It’s better you devise your time to find the valid professional that can help you recover your stolen or lost crypto such as bitcoins rather than falling victim of other amateur hackers that cannot get the job done. ADAMWILSON . TRADING @ CONSULTANT COM / WHATSAPP ; +1 (603) 702 ( 4335 ) is the most reliable and authentic blockchain tech expert you can work with to recover what you lost to scammers. They helped me get back on my feet and I’m very grateful for that. Contact their email today to recover your lost coins ASAP…
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14.09.25 02:37
luciajessy3
Don’t be deceived by different testimonies online that is most likely wrong. I have made use of several recovery options that got me disappointed at the end of the day but I must confess that the tech genius I eventually found is the best out here. It’s better you devise your time to find the valid professional that can help you recover your stolen or lost crypto such as bitcoins rather than falling victim of other amateur hackers that cannot get the job done. ADAMWILSON . TRADING @ CONSULTANT COM / WHATSAPP ; +1 (603) 702 ( 4335 ) is the most reliable and authentic blockchain tech expert you can work with to recover what you lost to scammers. They helped me get back on my feet and I’m very grateful for that. Contact their email today to recover your lost coins ASAP…
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14.09.25 12:44
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
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14.09.25 12:44
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
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14.09.25 15:13
estherfords
My solana recovery experience with Mighty Hacker Recovery Expert.
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14.09.25 15:13
estherfords
My solana recovery experience with Mighty Hacker Recovery Expert. Contact them on +14042456415 WhatsApp
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14.09.25 17:48
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
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14.09.25 17:48
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
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14.09.25 20:49
Clinton
I know firsthand how devastating it feels to lose money to a scam. When it happened to me, I was left frustrated, hopeless, and unsure where to turn. Complaining to apps about being scammed on their platforms didn’t change anything it felt like no one cared. But through a friend’s advice, I connected with a recovery professional who gave me real hope. With their help, I was able to get my funds back, something I thought was impossible. I’m sharing this because I don’t want anyone else to feel as lost as I once did. Whether you’ve been scammed through crypto platforms, dating scams, real-estate or mortgage fraud, or even fake ICOs, please know there’s still a way forward. If you’ve lost money, reach out to ([email protected]) or (WhatsApp) at (+)44 7366445035 for consultation and recovery services.
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14.09.25 22:16
Berrysmith
I recently recovered a large sum of digital assets. Sylvester Bryant, reachable at Yt7cracker@gmail. com, helped me reclaim 720,000 in Ethereum. The entire experience was excellent. I highly recommend Mr. Sylvester. He assists those dealing with lost or stolen funds. His skill in getting back money from scams is outstanding. Scammers cause huge stress and financial pain. Mr. Bryant offers a crucial service. He provides a way to possibly recover stolen funds. His professional manner built trust. If you lost money to scams, contact him. He is also on WhatsApp at +1 512 577 7957. This makes it easy to discuss your case. Recovering this amount was difficult. Mr. Bryant showed deep knowledge of the technical work. His commitment to solving these problems is clear. Seek his help for lost crypto or other digital assets. This is a major concern for many. Expert aid can greatly improve outcomes.
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15.09.25 10:25
aliceforemanlaw
I got back a lot of digital money recently. Sylvester Bryant helped me recover 120,000 in Ethereum. You can reach him at Yt7cracker@gmail. com. It was a great experience overall. I really suggest Mr. Sylvester. He helps people who lost money. He is great at getting money back from scams. Scammers cause a lot of stress and hurt. Mr. Bryant offers an important service. He can help you get back stolen funds. He was very professional and earned my trust. Contact him if you lost money to scams. He is also on WhatsApp at +1 512 577 7957. This makes it easy to talk about your situation. Getting this amount back was tough. Mr. Bryant knew a lot about the technical parts. His drive to fix these issues is clear. Get his help if you lost crypto or other digital items. Many people worry about this. Getting expert help can really make a difference.
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15.09.25 12:49
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
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15.09.25 12:49
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
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15.09.25 12:49
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
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16.09.25 12:25
aliceforemanlaw
Sylvester Bryant helped me recover 120,000 in Ethereum. You can reach him at Yt7cracker@gmail. com. It was a great experience overall. I really suggest Mr. Sylvester. He helps people who lost money. He is great at getting money back from scams. Scammers cause a lot of stress and hurt. Mr. Bryant offers an important service. He can help you get back stolen funds. He was very professional and earned my trust. Contact him if you lost money to scams. He is also on WhatsApp at +1 512 577 7957. This makes it easy to talk about your situation. Getting this amount back was tough. Mr. Bryant knew a lot about the technical parts. His drive to fix these issues is clear. Get his help if you lost crypto or other digital items. Many people worry about this. Getting expert help can really make a difference.
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16.09.25 12:26
aliceforemanlaw
Sylvester Bryant helped me recover 120,000 in Ethereum. You can reach him at Yt7cracker@gmail. com. It was a great experience overall. I really suggest Mr. Sylvester. He helps people who lost money. He is great at getting money back from scams. Scammers cause a lot of stress and hurt. Mr. Bryant offers an important service. He can help you get back stolen funds. He was very professional and earned my trust. Contact him if you lost money to scams. He is also on WhatsApp at +1 512 577 7957. This makes it easy to talk about your situation. Getting this amount back was tough. Mr. Bryant knew a lot about the technical parts. His drive to fix these issues is clear. Get his help if you lost crypto or other digital items. Many people worry about this. Getting expert help can really make a difference.
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16.09.25 13:25
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
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16.09.25 13:25
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
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17.09.25 02:56
peju1213
It can be very concerning to lose access to your USDT (Tether) wallet. It could potentially result in permanent loss of significant funds. You may have misplaced your private keys. Perhaps you unintentionally erased something, or your security was breached. It seems hopeless when you are unable to access your USDT. However, it doesn't have to stop there. There are methods for recovering your lost USDT. During difficult circumstances, professional assistance and wise recuperation techniques can give you hope. get in touch with Marie ([email protected] and +1 7127594675) on WhatsApp.
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17.09.25 11:16
[email protected]
Sylvester Bryant helped me recover $510,000 in Ethereum, and I highly recommend his services. He specializes in helping people recover funds lost to scams. Scammers can cause significant stress, but Mr. Bryant's professionalism and expertise in the technical aspects of recovery earned my trust. If you've lost money through scams, you can reach him at [ yt7cracker@gmail. com ] or on WhatsApp at +1 512 577 7957. His dedication to helping people get their stolen funds back is clear, and his support made a huge difference in my case.
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17.09.25 11:16
[email protected]
Sylvester Bryant helped me recover $510,000 in Ethereum, and I highly recommend his services. He specializes in helping people recover funds lost to scams. Scammers can cause significant stress, but Mr. Bryant's professionalism and expertise in the technical aspects of recovery earned my trust. If you've lost money through scams, you can reach him at [ yt7cracker@gmail. com ] or on WhatsApp at +1 512 577 7957. His dedication to helping people get their stolen funds back is clear, and his support made a huge difference in my case.
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17.09.25 23:50
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
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17.09.25 23:50
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
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17.09.25 23:50
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
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18.09.25 11:55
Mundo
Sylvester Bryant recovered £400,000 in Ethereum for me. I strongly advise using his services. He focuses on retrieving money lost to fraudulent schemes. Scams cause immense worry. Mr. Bryant's expert knowledge and calm approach in getting funds back reassured me. If you have lost money to scams, contact him via email at [email protected]. You can also reach him on WhatsApp at +1 512 577 7957. He is committed to helping people recover their stolen assets. His support was invaluable in my situation.
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18.09.25 11:55
Mundo
Sylvester Bryant recovered £400,000 in Ethereum for me. I strongly advise using his services. He focuses on retrieving money lost to fraudulent schemes. Scams cause immense worry. Mr. Bryant's expert knowledge and calm approach in getting funds back reassured me. If you have lost money to scams, contact him via email at [email protected]. You can also reach him on WhatsApp at +1 512 577 7957. He is committed to helping people recover their stolen assets. His support was invaluable in my situation.
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18.09.25 12:22
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
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18.09.25 12:22
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
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18.09.25 13:04
Mundo
Sylvester Bryant recovered £400,000 in Ethereum for me. I strongly advise using his services. He focuses on retrieving money lost to fraudulent schemes. Scams cause immense worry. Mr. Bryant's expert knowledge and calm approach in getting funds back reassured me. If you have lost money to scams, contact him via email at [email protected]. You can also reach him on WhatsApp at +1 512 577 7957. He is committed to helping people recover their stolen assets. His support was invaluable in my situation.
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18.09.25 16:46
carolinehudso83
I noticed a lot of online recommendations, and it’s clear that some of them are bad eggs that will just make уour mуsterу worse. I can onlу suggest one, and if уou need assistance getting back the moneу уou lost to scammers, уou can contact them bу email at: [email protected] Whats app or text +1 518 468 2985 Website https://bestrecoveryagent.com/
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19.09.25 00:54
frank2025
Anthony davies played a crucial role in successfully recovering my stolen USDT, which was valued at more than $300,000. His expertise and dedication made the recovery process smooth and efficient. Throughout the entire time, he demonstrated himself to be a reliable recovery agent. His professionalism and commitment to his clients are evident in the results he achieves. If you find yourself in a similar situation or need assistance, he is available for contact. You can reach anthony through email at (anthonydaviestech AT gmail dot com). Alternatively, he is also accessible via telegram at anthonydavies01. Reaching out to him could be the first step toward recovering your lost assets
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19.09.25 10:02
faithlawrence
Sylvester Bryant recovered £400,000 in Ethereum for me. I strongly advise using his services. He focuses on retrieving money lost to fraudulent schemes. Scams cause immense worry. Mr. Bryant's expert knowledge and calm approach in getting funds back reassured me. If you have lost money to scams, contact him via email at [email protected]. You can also reach him on WhatsApp at +1 512 577 7957. He is committed to helping people recover their stolen assets. His support was invaluable in my situation.
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19.09.25 10:02
faithlawrence
Sylvester Bryant recovered £400,000 in Ethereum for me. I strongly advise using his services. He focuses on retrieving money lost to fraudulent schemes. Scams cause immense worry. Mr. Bryant's expert knowledge and calm approach in getting funds back reassured me. If you have lost money to scams, contact him via email at [email protected]. You can also reach him on WhatsApp at +1 512 577 7957. He is committed to helping people recover their stolen assets. His support was invaluable in my situation.
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19.09.25 15:27
tonykith01477
There are not many reviews about free crypto recovery fixed but the ones that exist are mostly positive. I have no idea how that is possible, but it is clear that they are fabricated. However, there are also negative reviews – and I highly recommend paying attention to them. These are real people describing their unfortunate experiences with this scam. It’s the same story as always – fraudsters create a fake website to con people out of money. Nothing new but look no more and contact FASTRECOVERYAGENT These types of scams are everywhere. If you have already lost money to scammers i mean any type be it sending to scammers account , or if you have a case about stolen bitcoin , usdt, or any type of cryptocurrency whatsoever just reach out to www.fastrecoveryagent.com, i really owe this group of recovery expert because they saved me after bad investment with a fake broker, i literally owe them my life as they saved me from some bunch of scammers, but see how life is , i got every cent of my investment back with the profit , reach out to to them today and tell them from Mary because i promise them i will tell the whole world when the recovery is complete, and here i go after i got my recovered assets thats why im doing what i promised. do not fall for another scam. contact the,m today!!!!
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19.09.25 17:12
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
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19.09.25 17:12
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
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20.09.25 15:05
faithlawrence
I can’t recommend Sylvester Bryant enough. He successfully recovered €210,000 in Ethereum for me after I had lost hope. His expertise in tracing and reclaiming funds from scams is truly remarkable. What stood out most was his calm, professional approach and deep technical knowledge, which gave me complete confidence throughout the process. If you’ve lost money to a scam, I strongly encourage you to reach out to him. You can contact him via email at [[email protected] ] or on WhatsApp at +1 512 577 7957. He is genuinely dedicated to helping people recover what they’ve lost, and his support has been invaluable to me.
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20.09.25 15:53
blessing1198
It is distressing to lose USDT due to a bitcoin wallet hack. Although it is challenging, stolen USDT can be recovered. Taking prompt, wise action increases your chances. Marie can help you with reporting the theft, what to do right away, and USDT recovery. Contact her on WhatsApp at +1 7127594675, or email [email protected].
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21.09.25 12:05
star1121
Consider this: In cryptocurrency, you see what appears to be a fantastic opportunity. After investing your hard-earned money, you see it disappear into the wallet of a con artist. Your bank account seems empty as rage and regret merge in this stomach punch. These days, cryptocurrency frauds are very common, however recovering your cryptocurrency from scammers is still possible. You can track down and possibly recover what you lost with shrewd actions. Marie can help; contact her at [email protected] and on WhatsApp at +1 7127594675.
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23.09.25 03:23
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
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23.09.25 03:23
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
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23.09.25 03:23
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
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23.09.25 03:54
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
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23.09.25 14:45
Raymondkrisitina
Sylvester Bryant gets my full recommendation. He helped me get back €230,000 in Ethereum when I thought it was gone forever. His skills in tracking and retrieving scam-lost funds amaze me. I appreciated his steady, expert manner and strong tech know-how. That built my trust every step of the way. If a scam has taken your money, get in touch with him right away. Email him at yt7cracker@gmail. com or message on WhatsApp at +1 512 577 7957. He truly commits to aiding folks in regaining their assets. His help meant everything to me.
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23.09.25 19:27
beverlyalex010
In 2022, I lost 1.5 ETH in what I thought was a promising Twitter investment. I reached out to the so-called brokers behind it, but they vanished and stopped replying. For years, I carried the heavy belief that my crypto was gone forever. Then, by chance, I discovered RecoveryFundProvider [email protected] WhatsApp at +44 736-644-5035 through a finance podcast. That moment changed everything. Their team didn’t lure me in with false promises or flashy guarantees. Instead, they explained their process clearly specializing in advanced blockchain tracing, smart contract forensics, and even transaction reversal in certain cases. Skeptical but hopeful, I allowed them to review my case. What followed was beyond my expectations. They dug deep into the blockchain ledger, followed the coin’s complex movements across multiple addresses, and even collaborated with global nodes to trace every trail. Two weeks later, I received an alert I never thought I’d see again: my crypto had been fully recovered and safely transferred back to me. I cried tears of relief. What sets RecoveryFundProvider apart isn’t just their cutting-edge expertise, but their unwavering ethics and dedication. They treat every client like more than just another case number even years after a loss. Today, I can confidently say they live up to their name, and I’m endlessly grateful.
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23.09.25 22:38
Raymondkrisitina
Sylvester Bryant gets my full recommendation. He helped me get back €230,000 in Ethereum when I thought it was gone forever. His skills in tracking and retrieving scam-lost funds amaze me. I appreciated his steady, expert manner and strong tech know-how. That built my trust every step of the way. If a scam has taken your money, get in touch with him right away. Email him at yt7cracker@gmail. com or message on WhatsApp at +1 512 577 7957. He truly commits to aiding folks in regaining their assets. His help meant everything to me.
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24.09.25 12:22
beverlyalex010
In 2022, I lost 1.5 ETH in what I thought was a promising Twitter investment. I reached out to the so-called brokers behind it, but they vanished and stopped replying. For years, I carried the heavy belief that my crypto was gone forever. Then, by chance, I discovered RecoveryFundProvider [email protected] WhatsApp at +44 736-644-5035 through a finance podcast. That moment changed everything. Their team didn’t lure me in with false promises or flashy guarantees. Instead, they explained their process clearly specializing in advanced blockchain tracing, smart contract forensics, and even transaction reversal in certain cases. Skeptical but hopeful, I allowed them to review my case. What followed was beyond my expectations. They dug deep into the blockchain ledger, followed the coin’s complex movements across multiple addresses, and even collaborated with global nodes to trace every trail. Two weeks later, I received an alert I never thought I’d see again: my crypto had been fully recovered and safely transferred back to me. I cried tears of relief. What sets RecoveryFundProvider apart isn’t just their cutting-edge expertise, but their unwavering ethics and dedication. They treat every client like more than just another case number even years after a loss. Today, I can confidently say they live up to their name, and I’m endlessly grateful.
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24.09.25 15:50
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
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24.09.25 15:50
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
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24.09.25 15:50
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
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24.09.25 19:08
Raymondkrisitina
Sylvester Bryant gets my full recommendation. He helped me get back €230,000 in Ethereum when I thought it was gone forever. His skills in tracking and retrieving scam-lost funds amaze me. I appreciated his steady, expert manner and strong tech know-how. That built my trust every step of the way. If a scam has taken your money, get in touch with him right away. Email him at yt7cracker@gmail. com or message on WhatsApp at +1 512 577 7957. He truly commits to aiding folks in regaining their assets. His help meant everything to me.
-
24.09.25 19:50
Raymondkrisitina
Sylvester Bryant gets my full recommendation. He helped me get back €230,000 in Ethereum when I thought it was gone forever. His skills in tracking and retrieving scam-lost funds amaze me. I appreciated his steady, expert manner and strong tech know-how. That built my trust every step of the way. If a scam has taken your money, get in touch with him right away. Email him at yt7cracker@gmail. com or message on WhatsApp at +1 512 577 7957. He truly commits to aiding folks in regaining their assets. His help meant everything to me.
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24.09.25 19:55
Athea5130
ETHICAL BITCOIN HACKER/ BEST WAY RECOVERY BITCOIN I believed I was completely lost. I was unable to withdraw money from my investment wallet after making a dubious investment, and until I discovered Best Way Hacker Company, no one could assist me in unfreezing it. This group handled my matter with attention and urgency. In a matter of days, they were able to retrieve my frozen investment and transfer it to a new wallet that I owned. They restored my hope in a big way. Best Way Hacker restored my money and my peace of mind, and for that I will always be grateful. Email.. [email protected] WhatsApp..+39-(350)-967-(1925)
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24.09.25 19:56
Athea5130
ETHICAL BITCOIN HACKER/ BEST WAY RECOVERY BITCOIN I believed I was completely lost. I was unable to withdraw money from my investment wallet after making a dubious investment, and until I discovered Best Way Hacker Company, no one could assist me in unfreezing it. This group handled my matter with attention and urgency. In a matter of days, they were able to retrieve my frozen investment and transfer it to a new wallet that I owned. They restored my hope in a big way. Best Way Hacker restored my money and my peace of mind, and for that I will always be grateful. Email.. [email protected] WhatsApp..+39-(350)-967-(1925)
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24.09.25 19:56
Athea5130
ETHICAL BITCOIN HACKER/ BEST WAY RECOVERY BITCOIN I believed I was completely lost. I was unable to withdraw money from my investment wallet after making a dubious investment, and until I discovered Best Way Hacker Company, no one could assist me in unfreezing it. This group handled my matter with attention and urgency. In a matter of days, they were able to retrieve my frozen investment and transfer it to a new wallet that I owned. They restored my hope in a big way. Best Way Hacker restored my money and my peace of mind, and for that I will always be grateful. Email.. [email protected] WhatsApp..+39-(350)-967-(1925)
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24.09.25 19:56
Athea5130
ETHICAL BITCOIN HACKER/ BEST WAY RECOVERY BITCOIN I believed I was completely lost. I was unable to withdraw money from my investment wallet after making a dubious investment, and until I discovered Best Way Hacker Company, no one could assist me in unfreezing it. This group handled my matter with attention and urgency. In a matter of days, they were able to retrieve my frozen investment and transfer it to a new wallet that I owned. They restored my hope in a big way. Best Way Hacker restored my money and my peace of mind, and for that I will always be grateful. Email.. [email protected] WhatsApp..+39-(350)-967-(1925)
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24.09.25 20:52
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
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24.09.25 20:52
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
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