Русский
EnglishCryptocurrencies:
7990 /
Markets: 106797
Market Cap: $ 2 333 449 080 962 /
24h Vol: $ 99 224 440 987 /
BTC
Dominance: 59.692073435998%
Новости
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
-
07.07.26 18:00
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
-
07.07.26 18:01
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
-
09.07.26 19:06
Toivo Walli
I lost 8.56btc to a fake Bitcoin mining site, I tried withdrawing but couldn't approved my process, I reported to !R£SQPROFIRM! via °R£SQproFirm°àt°gmail•com° °tEL£°gram=R£SQprofirm °whaT°Zap+198°52°96°91°46
-
09.07.26 19:10
Misty Alexander
Ongoing messages demanding more money before approving withdrawals are a major red flag. Stop engaging and report the incident to a trusted recovery team. For professional support, you can contact R£sQprofirm using °ResQproFirm°àt°g,*ma'il(•)¢m°, TEL£gram ResQprofirm, or |whaTZap| +1-985-296-9146.
-
09.07.26 19:13
Clara Soto
Anyone receiving continued requests for additional deposits from a scam platform should immediately cut off communication and submit the case to a reputable recovery service for investigation. R£sQprofirm is a dependable firm you can reach at °ResQproFirm°àt°g,*ma'il(•)¢om°, TEL£gram ResQprofirm, or |whaTZap| +1-985-296-9146.
-
12.07.26 03:30
Kora Baltacha
Time is critical. Act now by reaching out to a reputable, seasoned recovery specialist who will guide you every step of the way. You'll need to submit transaction proof, scammer details, and any other useful information. Armed with this, the experts can trace and attempt to pull your money back from the scammers' hidden accounts or wallets. Best of all, R£sQprofirm provides recovery help without charging any upfront fees. Contact them immediately via Telegram @ResQprofirm, WhatsApp +19852969146, or email [email protected].
-
12.07.26 03:33
Pahal Mathew
It's important to move proactively by engaging an experienced recovery specialist. They will assist you throughout the process. To help them, provide: · Transaction evidence · Scammer information · Any additional relevant details The experts will then track and try to retrieve your funds from the scammers' hidden accounts or wallets. R£sQprofirm offers recovery assistance with no upfront fees. Contact: Telegram: @ResQprofirm WhatsApp: +19852969146 Email: [email protected]
-
13.07.26 23:49
[email protected]
One of the biggest concerns I have about cryptocurrency is the lack of regulation. It creates opportunities for scammers to invent convincing stories and fraudulent investment schemes. Unfortunately, some social media platforms continue to display these ads because they profit from them, even after users report them.I personally clicked on a Facebook advertisement for a company called Chickenfastmining and ended up losing more than $120,000 in a scam. I reported the ad, but nothing was done. Later, through a Reddit community, I found a recovery service called CYBERBERSPY that, in my personal experience, they helped me recover $110,000 of my lost funds. If you've been a victim of a cryptocurrency scam, don't lose hope. Explore your options carefully, and always verify the legitimacy of any recovery service before trusting them or paying any fees. Based on my own experience, CYBERBERSPY was helpful to me and i was able to recover my funds back, but I encourage everyone to do their own research before using any recovery service.i highly recommend: ([email protected])
-
15.07.26 11:53
Sarah Green
Thank you for showing that success is possible regardless of where someone starts. Your encouragement, valuable advice, and continuous support have inspired me throughout my $160,457k crypto investment recovery journey. I truly appreciate your kindness and dedication. Resqprofirm @gmail.com Telegram: Resqprofirm
-
15.07.26 11:58
Lily Gagné
I sincerely appreciate you for proving that anyone can overcome challenges and achieve success. Your unwavering support throughout my trading investment scam of $88,890 recovery journey has been truly inspiring, and your guidance and wisdom have meant a great deal to me. Thank you for everything ResQprofirm@ gmail.com, ResQprofirm on the telegram.
-
16.07.26 21:38
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
-
16.07.26 21:38
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
-
17.07.26 19:24
laimqq90
I recommend Marie when it comes to recovering lost/stolen ust/bitcoin or any kind of cryptocurrencies' from fake investment platforms because they're well specialized in that area and you'll get your money back in full. I can boldly say this right now based on my prior deal i had with them; she was the only one who was able to recover my lost money $52,760 dollars back to my account, Only * ([email protected] and WhatsApp +1 7127594675 successful in recovering my money. They are the only one who can fully restore your lost funds to your account without any deductions, I really value their work and am recommending her to you today. THANK ME LATER
-
17.07.26 20:12
martinsjude080
Needs Online Fraud Help Contact Mighty Hacker Recovery https://mightyhackarrecovery.com I lost $292,900 in Bitcoin after investing with an online mining company. After realizing I had been scammed, I spent a long time searching for ways to recover my funds and contacted several services without success. During my research, I came across Mighty Hacker Recovery through Google and YouTube. What caught my attention was that they said they would not require any upfront payment before providing their recovery service. I decided to contact them to discuss my case and understand their process. Throughout the process, they kept me informed about the progress. After several days, I was asked to provide my Bitcoin wallet address, and my case was concluded. Their fee was handled after the service rather than being requested in advance. If you've been the victim of a cryptocurrency scam, it's important to do your own research, ask questions, and carefully evaluate any recovery service before proceeding. Every case is different, so take the time to verify information and understand the process before making any decisions. For Bitcoin scam recovery, cryptocurrency scam, crypto recovery service, recover stolen Bitcoin, Bitcoin fraud help, blockchain investigation, crypto wallet recovery, online investment scam, digital asset recovery, and crypto scam support. Contact Them on WhatsApp +1 (343) 947-3496 or [email protected] or [email protected] or https://mightyhackarrecovery.com Scam recovery Online fraud help Scam alert Report fraud Fraud investigation Fake website checker Scam checker Identity theft protection Consumer protection Chargeback for scam Wire transfer scam Tech support scam Employment scam Rental scam Shopping scam Email scam WhatsApp scam Telegram scam Facebook scam Instagram scam
-
18.07.26 17:12
Malthe Larsen
My experience with OKX has been deeply frustrating. For months, my account withdrawals were restricted with no explanation or resolution. Multiple emails to their support team were ignored, leaving me without answers or reassurance. This complete lack of communication shattered my trust. I ultimately regained access to my funds only through the help of a third-party recovery service, ResQProfirm. What should have been a reliable platform instead made me feel helpless and cut off from my own assets. [email protected], WhatsApp +19852969146, telegram @Resqprofirm
-
18.07.26 17:42
پریا رضایی
OKX has been a major disappointment. My withdrawals were restricted for months, and repeated attempts to contact support went unanswered. This silence destroyed my confidence in the platform. I was only able to recover my funds through a third-party service, ResQProfirm. I trusted OKX for its reliability, but the experience left me feeling trapped and helpless. Timely communication and access to one’s own money should be a basic standard. [email protected], WhatsApp +19852969146, telegram: ResQprofirm
-
18.07.26 17:46
Adem Akışık
I truly didn’t expect such an outstanding outcome. Recovering my $49,360 felt impossible at first, but ResQprofirm’s dedication and persistence made it happen. I hold their team in the highest regard. [email protected], WhatsApp +19852969146
-
18.07.26 23:51
bernalzenaida
WhatsApp https://wa.link/fhle97 Telegram https://msng.link/o?@techcyberforc=tg As cryptocurrency continues to reshape global finance, cybercriminals are finding new ways to exploit investors through scams, hacks, phishing attacks, fake investment platforms, and other forms of digital asset fraud. For many victims, knowing where to turn after a loss can be one of the biggest challenges. Techy Force Cyber Retrieval was founded with one clear mission: to give victims of crypto fraud a fighting chance through professional blockchain investigations and cybersecurity expertise. Our team brings together experienced blockchain analysts, digital forensic specialists, cybersecurity professionals, and legal partners who work collaboratively to investigate cryptocurrency-related crimes. Using advanced blockchain forensic tools and global investigative techniques, we analyze transaction histories, trace digital asset movements where possible, identify valuable investigative leads, and prepare evidence that may assist clients and the appropriate authorities. We believe blockchain should represent transparency, accountability, and trust—not fear. That’s why we’re committed to helping victims understand their options, navigate the investigative process, and take informed action after cryptocurrency fraud. Every case is different, and while no legitimate recovery service can promise a successful recovery, acting quickly and working with experienced professionals can improve the quality of an investigation. At Techy Force Cyber Retrieval, we do more than investigate digital crimes—we advocate for victims, pursue the facts, and help people regain confidence after cryptocurrency fraud. WhatsApp https://wa.link/fhle97 Telegram https://msng.link/o?@techcyberforc=tg Crypto fraud doesn’t have to be the end of the road. It’s where our investigation begins.
-
19.07.26 04:10
Fraddy Pual
I can't thank Fundsretriever enough for everything they did for me. My name is Vanessa Conway, and I'm here to tell you my story of how I recovered money I never thought I'd see again. A few months ago, I put a significant amount of money into what looked like a genuine online investment company. At first, it felt real—they showed me fake profits and convinced me to invest even more. But when I tried to cash out, they went quiet and started asking for extra fees. That's when it hit me—I had been scammed. I was heartbroken, frustrated, and didn't know where to turn. That money was my savings—months of hard work gone. Then I found Fundsretriever online. I reached out, hoping for a miracle. Right away, their team made me feel heard. They were responsive, knowledgeable, and walked me through everything. They didn't just take my case—they took it seriously and kept me in the loop every step of the way. I finally felt like I had real experts fighting for me. And guess what? They actually got my money back. It wasn't instant, and it took teamwork, but it happened. When I saw those funds returned, I cried with joy. I'm sharing this so that anyone else out there who's been scammed knows—don't lose hope. Do your research before investing, and stay far away from platforms that promise too much too fast. And if you've already been stung, don't wait—get professional help immediately. Thank you, Fundsretriever, from the bottom of my heart. You didn't just recover my money—you restored my faith. — Vanessa Conway 📧 [email protected] 📱 WhatsApp: +16035121448 💬 Telegram: @Fundsretriever
-
19.07.26 19:53
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
-
19.07.26 19:53
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
-
19.07.26 19:54
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
-
30.07.26 00:04
Ahmed
A really cool analysis, thank you. I was especially struck by how strictly the order is defined: data processing and formatting come first, with color only at the very end. This really saves you from the typical mistake of "first a pretty palette, then we figure out what the chart is for." And the palette validator with OKLCH + colorblindness check is absolutely fantastic; you almost never see that in regular tools. By the way, while reading about rank-trajectory and the logarithmic scale, I immediately remembered how convenient it is to analyze dynamics on charts in ExpertOption—I've been trading there for quite some time now. When the data is well visualized, decisions are noticeably easier and more relaxed. I also liked the point about "no more than eight colors" and the dual-axis ban. Strict restrictions sometimes actually produce better results than complete freedom. I'll try this approach myself.
-
30.07.26 17:27
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
-
30.07.26 17:27
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
-
31.07.26 16:21
rssllhrnsb
I learned an important lesson after investing in what appeared to be a genuine opportunity. Unfortunately, I was unable to access my funds, which reinforced the importance of carrying out thorough due diligence, checking whether an investment is appropriately regulated, and seeking qualified professional advice rather than relying solely on online reviews or testimonials. During the process of addressing my case, I worked with Mrs. Doris Ashley, who communicated clearly, provided regular updates, and handled the matter in a professional manner. According to my experience, I have recovered $50,000 so far, while efforts to resolve the remaining balance are still in progress. If you wish to contact her, the details I used are: Mrs. Tatiana Sorina TEXT : (tatianasorina06 at G.Ma IL ..c 0 m ) Before committing money to any investment, take time to verify the legitimacy of the platform, confirm any relevant regulatory authorisations, and avoid investing more than you can comfortably afford to lose.
-
01.08.26 15:05
keithwilson9899
ETHEREUM RECOVERY ASSISTANCE: CAPITAL CRYPTO RECOVER HELPED ME RECOVER $98,000 WORTH OF LOST ETH In cases of cryptocurrency scams, having accurate information and trusted support is essential. I would like to recommend Capital Crypto Recover Service, a professional team that specializes in assisting individuals with the recovery of lost or stolen Bitcoin and Ethereum (ETH). Their experienced experts are dedicated to helping victims of digital asset fraud by carefully analyzing each case, developing strategic recovery plans, Capital Crypto Recover Service knowledgeable team's primary goals are to satisfy clients and offer significant support and working diligently toward fund retrieval. The team is committed to providing reliable assistance and maintaining a high level of client satisfaction. Based on my assessment, their reputation professionalism and a strong commitment to their clients. If you have experienced a cryptocurrency loss, you can contacting them for further assistance Phone (Call/Text): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
01.08.26 15:05
keithwilson9899
ETHEREUM RECOVERY ASSISTANCE: CAPITAL CRYPTO RECOVER HELPED ME RECOVER $98,000 WORTH OF LOST ETH In cases of cryptocurrency scams, having accurate information and trusted support is essential. I would like to recommend Capital Crypto Recover Service, a professional team that specializes in assisting individuals with the recovery of lost or stolen Bitcoin and Ethereum (ETH). Their experienced experts are dedicated to helping victims of digital asset fraud by carefully analyzing each case, developing strategic recovery plans, Capital Crypto Recover Service knowledgeable team's primary goals are to satisfy clients and offer significant support and working diligently toward fund retrieval. The team is committed to providing reliable assistance and maintaining a high level of client satisfaction. Based on my assessment, their reputation professionalism and a strong commitment to their clients. If you have experienced a cryptocurrency loss, you can contacting them for further assistance Phone (Call/Text): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
03.08.26 20:05
Philip
I was a victim of a crypto theft involving a Pink Drainer, which resulted in the theft of my Wrapped Bitcoin (WBTC) from my Polygon network. The experience was incredibly frustrating and distressing, as I had no idea how to recover my funds. Unfortunately, by the time I noticed the theft, the funds had already been drained to an address that I had no control over, making it seem like an irreversible situation.The attack happened when I clicked on what appeared to be a legitimate link. I didn’t realize at the time that it was a phishing attempt designed to siphon off my private keys and access my wallet. The Pink Drainer, a type of malicious script used by attackers, is specifically designed to exploit such vulnerabilities in crypto wallets. The moment I realized that my WBTC had been drained from my Polygon network. I felt completely helpless, as I didn’t have direct access to the thief's address, and there was no way to reverse the transaction on my own at that point, I started searching for ways to recover my funds, but most resources only offered generic advice that wasn’t practical in this particular case. I quickly realized that if I wanted to have any hope of getting my assets back, I would need professional assistance. After some research, I came across a reliable and trusted recovery team called Aspen Recovery Experts. Their expertise in cryptocurrency recovery, especially in cases like mine, seemed promising.I decided to reach out to Aspen Recovery Experts, and I’m incredibly grateful that I did. Their team of crypto recovery experts was able to help me trace the stolen funds and identify the path the funds took after they left my wallet. Using advanced tools and techniques, they were able to track the transactions on the blockchain, helping me understand where my WBTC had been sent. More importantly, they worked tirelessly to assist me in contacting the necessary parties and even interfaced with blockchain analysts to help facilitate the recovery process.Thanks to their efforts, I was able to successfully recover my stolen funds. The entire process took some time, but the Aspen Recovery Experts dedicated team provided regular updates and kept me informed throughout the process, which gave me a sense of hope and relief during an otherwise stressful time. If you’re ever in a similar situation, I highly recommend reaching out to a trusted recovery team like Aspen Recovery Expertshhh . Their professionalism, knowledge, and expertise were critical in helping me recover my funds and regain control of my crypto assets. Whatsapp : +1 747 231 9036 Telegram : @ prohackerspy Email : [email protected]
-
03.08.26 20:06
Philip
I was a victim of a crypto theft involving a Pink Drainer, which resulted in the theft of my Wrapped Bitcoin (WBTC) from my Polygon network. The experience was incredibly frustrating and distressing, as I had no idea how to recover my funds. Unfortunately, by the time I noticed the theft, the funds had already been drained to an address that I had no control over, making it seem like an irreversible situation.The attack happened when I clicked on what appeared to be a legitimate link. I didn’t realize at the time that it was a phishing attempt designed to siphon off my private keys and access my wallet. The Pink Drainer, a type of malicious script used by attackers, is specifically designed to exploit such vulnerabilities in crypto wallets. The moment I realized that my WBTC had been drained from my Polygon network. I felt completely helpless, as I didn’t have direct access to the thief's address, and there was no way to reverse the transaction on my own at that point, I started searching for ways to recover my funds, but most resources only offered generic advice that wasn’t practical in this particular case. I quickly realized that if I wanted to have any hope of getting my assets back, I would need professional assistance. After some research, I came across a reliable and trusted recovery team called Aspen Recovery Experts. Their expertise in cryptocurrency recovery, especially in cases like mine, seemed promising.I decided to reach out to Aspen Recovery Experts, and I’m incredibly grateful that I did. Their team of crypto recovery experts was able to help me trace the stolen funds and identify the path the funds took after they left my wallet. Using advanced tools and techniques, they were able to track the transactions on the blockchain, helping me understand where my WBTC had been sent. More importantly, they worked tirelessly to assist me in contacting the necessary parties and even interfaced with blockchain analysts to help facilitate the recovery process.Thanks to their efforts, I was able to successfully recover my stolen funds. The entire process took some time, but the Aspen Recovery Experts dedicated team provided regular updates and kept me informed throughout the process, which gave me a sense of hope and relief during an otherwise stressful time. If you’re ever in a similar situation, I highly recommend reaching out to a trusted recovery team like Aspen Recovery Expertshhh . Their professionalism, knowledge, and expertise were critical in helping me recover my funds and regain control of my crypto assets. Whatsapp : +1 747 231 9036 Telegram : @ prohackerspy Email : [email protected]
-
04.08.26 11:05
Kisnoles
Excellent analysis, thank you. I was particularly struck by how rigidly the skill sets the order: data processing and form come first, with color coming last. This really cures the habit of "first a pretty palette, then we'll figure it out." A palette validator using OKLCH + color blindness + WCAG is something most chart generators lack. And regarding the boundaries of competence, it's very clear. Where there's a self-checking loop (color), you delegate freely. Where there's a heuristic (form, data interpretation), you remain the final filter. This is a universal principle, not just for /dataviz. By the way, when you look at trading dashboards (including those of decent platforms like ExpertOption), it's immediately clear who thought about readability and who just threw in rainbow lines. Tools like this skill could greatly improve the quality of analytics. Thanks again for the detailed analysis – saved.
-
04.08.26 12:37
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
-
04.08.26 12:37
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
-
06.08.26 08:11
ROMMYHENDERSON344
All you need is to hire an expert to help you accomplish that. If there's any need to spy on your partner's phone. From my experience I lacked evidence to confront my husband on my suspicion on his infidelity, until I came across REALCYBERHACKERS which many commend him of assisting them in their spying mission. So I contacted him and he provided me with access into his phone to view all text messages, call logs, WhatsApp messages and even her location. This evidence helped me move him off my life . I recommend you consult REALCYBERHACKERS AT gmail com or whatsapp +14106350697 if you need access to your partner's phone or any kind of hacking, they carry out all kinds of hacking job
-
06.08.26 13:56
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/Text: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
06.08.26 13:56
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/Text: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
11.08.26 03:43
raymont0714
I recommend a trusted cybersecurity PRO with experience in authorized device access, security testing, and data recovery. SHE work only with the owner's consent and follow all legal and privacy rules on meta data. With permission, this specialist can recover lost files, check device security offline & online, and review texts, call records, or hidden data (spy or lurk around a cheating partner or colleuge). Strict confidentiality agreements protect the information, and client details remain private. The work is careful, efficient, and suited to complex cases. For help securing or recovering information from a phone or another electronic device, use the details below 2 consult [email protected] +44 7476618364 I trust her secrecy a living witness. Her discretion is unmatched, ensuring your privacy is always maintained
-
12.08.26 16:37
rssllhrnsb
I learned an important lesson after investing in what appeared to be a genuine opportunity. Unfortunately, I was unable to access my funds, which reinforced the importance of carrying out thorough due diligence, checking whether an investment is appropriately regulated, and seeking qualified professional advice rather than relying solely on online reviews or testimonials. During the process of addressing my case, I worked with Mrs. Tatiana Sorina , who communicated clearly, provided regular updates, and handled the matter in a professional manner. According to my experience, I have recovered $50,000 so far, while efforts to resolve the remaining balance are still in progress. If you wish to contact her, the details I used are: Mrs. Tatiana Sorina TEXT : (tatianasorina06 at G_Ma IL dot ..c 0 m)…. Before committing money to any investment, take time to verify the legitimacy of the platform, confirm any relevant regulatory authorisations, and avoid investing more than you can comfortably afford to lose.
-
16.08.26 01:44
Matt Kegan
CapitalNode Analytics. They help to investigate and recover stolen digital assets from fake trading platforms. Great firm i must say.
-
18.08.26 04:59
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 WhatsApp/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
18.08.26 04:59
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 WhatsApp/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
19.08.26 14:50
BAYER7043
My account was locked, and I couldn’t access my own information until [email protected] +447476618364 whats?up? helped me recover it. This lady hacker was kind and professional, but this experience showed me how risky account lockouts can be. If you’re facing the same problem, do not panic consult her A. S. A. P. Be careful with recovery agents outchea, and research their name, business, and reviews before sharing any details. Never send passwords, security codes, banking information, or copies of your ID unless you’ve confirmed who you’re dealing with. Be wary of promises that sound too good to be true, especially claims that require little information or guarantee instant access with outrageous fees.
-
20.08.26 11:32
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 WhatsApp Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
20.08.26 11:32
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 WhatsApp Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
23.08.26 20:02
leslieyee
Excellent analysis by /dataviz! I was particularly struck by how strictly the order is defined: "data meaning first, color last" and how the validator actually adjusts the palette according to OKLCH, color blindness, and WCAG standards. These rules greatly improve the quality of charts. By the way, a similar approach to clean and legible charts is highly valued in trading—for example, on the ExpertOption platform, the interface and price visualization are designed to ensure information is read instantly and without unnecessary noise.
-
25.08.26 13:44
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
25.08.26 13:44
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
30.08.26 15:37
[email protected]
Discovering I had been defrauded, I searched online for services claiming to recover stolen ETH. I contacted several companies, but none succeeded. Although some claimed they could trace assets or recover funds, I could not verify their success or recover my money. I later found SYLVESTER BRYANT Recovery through Google. After contacting him, he recovered 450,000,00. He can be reached at [email protected] or WhatsApp at +1 512 577 7957.
-
30.08.26 15:37
[email protected]
Discovering I had been defrauded, I searched online for services claiming to recover stolen ETH. I contacted several companies, but none succeeded. Although some claimed they could trace assets or recover funds, I could not verify their success or recover my money. I later found SYLVESTER BRYANT Recovery through Google. After contacting him, he recovered 450,000,00. He can be reached at [email protected] or WhatsApp at +1 512 577 7957.
-
01.09.26 11:16
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
01.09.26 11:16
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
01.09.26 17:34
Garry42
Really crazy world. These fraudsters go at any length to steal your hard earned funds. I have been a victim of a bitcoin scam about 7 months back. A Con artist gained access to my cashapp account through a phishing scam. They stole $409,000. I was really devastated. I did everything to get back my funds by contacting the FBI but they claimed there was nothing they could do. A friend told me about a recovery expert. He helps fight against various phishing and investment scams and they were able to help trace and recover my funds even though it took over 2 days. you can reach out to him through recoverydarek@gmail. com . I can guarantee his services are still active.
-
01.09.26 17:34
Garry42
Really crazy world. These fraudsters go at any length to steal your hard earned funds. I have been a victim of a bitcoin scam about 7 months back. A Con artist gained access to my cashapp account through a phishing scam. They stole $409,000. I was really devastated. I did everything to get back my funds by contacting the FBI but they claimed there was nothing they could do. A friend told me about a recovery expert. He helps fight against various phishing and investment scams and they were able to help trace and recover my funds even though it took over 2 days. you can reach out to him through recoverydarek@gmail. com . I can guarantee his services are still active.
-
02.09.26 03:43
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
02.09.26 03:43
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
04.09.26 21:51
Kovengray
Recovering your lost investment funds as the case might be, is not what you can do alone, you’d require the service of a trained recovery specialist. A recovery specialist is a person or a group of people who are well equipped to work around the brokerage network. They have vast knowledge about the whole network and have the right software and private keys to follow any transaction. I was ripped off trading online to an investment broker, good thing I got every penny back through the help of Gavin ray he’s a genius Contact : Gavinray78 at gmail com or WhatsApp +1 352 322 2096 It is also important to be patient and really calm during the process.
-
05.09.26 21:38
[email protected]
I invested 45,000 Euro, and later aggreviated to 198,000 Euro. I requested to place Withdrawal of my funds to be paid to my Bank account. But nothing happened I was subjected to pay more fee until I can get my funds on my account, i got in touch with Theodore ryan here on this platform who had helped a lot of people, I followed all instructions and he legally got back my withheld funds, I got threatened by the company that if I don’t pay they will get my account frozen, all thanks to Theodore ryan and I highly recommend him to anyone dealing with an unregulated broker company… contact him on his Gmail - theodoreryan318@ gmail . com
-
09.09.26 21:31
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
09.09.26 21:31
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
09.09.26 23:22
Fraddy Pual
Hearing that these individuals are focusing on other people makes me very sad. I had a similar situation with them and lost a lot of money, but after learning about (Cruxcipherteam @ proton DoT me), whataqq:+168160-15021, telegram: @Cruxcipherteam I was able to get my money back. It's critical that we all be watchful and keep reporting these occurrences.
-
11.09.26 03:23
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
11.09.26 03:23
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
15.09.26 03:35
elioduncan
I fell victim to a freelance web development contract scam that ultimately cost me CAD 4,000. It all started when I came across a job posting on Indeed Canada, a popular online job portal. The position seemed perfect: a freelance web developer role for an established company looking for someone to design and build a fully functional e-commerce website. The job promised a high payment of CAD 20,000 upon successful completion, which sounded like a great opportunity for me to gain experience and earn decent pay.The employer, who introduced himself as a project manager from a "well-known" tech company, was very persuasive and professional in our initial communication. He explained that the project involved developing a user-friendly, responsive online store for their client and that they had a strict timeline to meet. He assured me that the payment would be made promptly after completing the tasks. However, before starting the work, he told me that I would need to pay an upfront fee of CAD 4,000 to cover certain software tools and licensing fees required for the project. This was supposedly a part of their company policy for freelance contractors, ensuring access to their premium resources. The idea of working on a professional project, coupled with the promise of a substantial payout, convinced me to pay the upfront fee.As soon as I made the payment, the project manager became increasingly difficult to reach. He initially responded to my emails and provided some vague instructions on what the project would entail, but as time went on, communication slowed to a complete halt. I never received the required tools or any proper project details. My emails went unanswered, and any attempts to contact the company were met with silence. After waiting for weeks, I realized that I had been scammed.Desperate to recover my money, I turned to TechY Force Cyber Retrieval, a service that specializes in helping victims of online scams. They helped me track the payment and took legal steps to pursue the fraudsters. Through their guidance, I was able to recover the full CAD 4,000. TechY Force Cyber Retrieval worked with my bank to reverse the transaction and liaised with the authorities to trace the scammer's details.This was a hard lesson, and I now know to be highly cautious about online job offers that require upfront payments. It is crucial to research companies thoroughly and avoid any job that seems too good to be true, especially when it involves paying money upfront. WhatsApp https://wa.link/2x6ktp Mail. [email protected]
-
15.09.26 15:45
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
15.09.26 15:45
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
05.10.26 21:26
[email protected]
I Invested 45,000 Euro, and later aggreviated to 198,000 Euro. I requested to place Withdrawal of my funds to be paid to my Bank account. But nothing happened I was subjected to pay more fee until I can get my funds on my account, i got in touch with Theodore ryan here on this platform who had helped a lot of people, I followed all instructions and he legally got back my withheld funds, I got threatened by the company that if I don’t pay they will get my account frozen, all thanks to Theodore ryan and I highly recommend him to anyone dealing with an unregulated broker company… contact him on his Gmail - theodoreryan318@ gmail . com
-
06.10.26 06:13
melissathomason573
Professional Crypto Recovery Testimonial After losing a significant amount of cryptocurrency through a scam on Twitter, I was unsure whether my Bitcoin funds could ever be recovered. The experience was extremely stressful, particularly because I encountered several individuals and services claiming they could help recover my assets, only to discover that some were fraudulent themselves. A friend eventually referred me to CAPITAL CRYPTO RECOVER. Their team handled my case professionally, discreetly, and efficiently. With their assistance, I successfully recovered approximately $130,000 worth of USDT in just over a week. My experience taught me the importance of being extremely cautious when seeking cryptocurrency recovery services, as scammers often target victims a second time. I am grateful to CAPITAL CRYPTO RECOVER for the assistance I received and wanted to share my experience with others who may be facing a similar situation. If you’ve been compromised, don’t lose hope—and be careful of fraudsters posing as saviors. CAPITAL CRYPTO RECOVER are real professionals in crypto recovery. I am a living proof of their effectiveness, you can reach them through Phone (Call/WhatsApp): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
06.10.26 06:13
melissathomason573
Professional Crypto Recovery Testimonial After losing a significant amount of cryptocurrency through a scam on Twitter, I was unsure whether my Bitcoin funds could ever be recovered. The experience was extremely stressful, particularly because I encountered several individuals and services claiming they could help recover my assets, only to discover that some were fraudulent themselves. A friend eventually referred me to CAPITAL CRYPTO RECOVER. Their team handled my case professionally, discreetly, and efficiently. With their assistance, I successfully recovered approximately $130,000 worth of USDT in just over a week. My experience taught me the importance of being extremely cautious when seeking cryptocurrency recovery services, as scammers often target victims a second time. I am grateful to CAPITAL CRYPTO RECOVER for the assistance I received and wanted to share my experience with others who may be facing a similar situation. If you’ve been compromised, don’t lose hope—and be careful of fraudsters posing as saviors. CAPITAL CRYPTO RECOVER are real professionals in crypto recovery. I am a living proof of their effectiveness, you can reach them through Phone (Call/WhatsApp): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
06.10.26 17:44
Darrell1717
I fell victim of a scam I invested to total of 5thousand into. I know it could be risky but after I trusted this man I was dating online he lured me into investing with him. I know hard I worked of my money so I wanted every way possible to get it back. I really appreciate Blockrecoveryexpert for successfully recovered my funds form this scammer. This is all I can say. You can reachout if you ever need help contact blockrecoveryexpert (at) gmail (dot)com
-
11.10.26 03:04
Patricia014
Most recovery companies will take your money again. I personally think they’re the same set of people running all of them. It’s a sad, unending cycle, and so many people fall for cloned websites. The only recovery agent I know is Agent Rottgen Raphael. I’ve visited their physical company address, and they’ll tell you if they can handle your case instead of taking upfront payment when they know they can’t help. I highly appreciate their support in recovering my money from the scammers’ wallet within 24 hours. RottgenRaphael@Gmail. com
-
12.10.26 19:34
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
12.10.26 19:34
lydiassmith567
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
13.10.26 14:14
lisalisa22
Legitimate Cryptocurrency Recovery Services: Consult ZEUS CRYPTO RECOVERY SERVICES Zeus Crypto Recovery Services supports individuals exploring options after cryptocurrency losses from fraud, unauthorised transfers, or wallet access issues. Services may include blockchain analysis, wallet tracing, and evidence gathering for investigations. Each case is reviewed. Zeus Crypto Recovery Services is a trusted company with the highest success rate among cryptocurrency recovery services in 2025/2026 and is highly recommended if you have been scammed. ZEUS CRYPTO RECOVERY SERVICES handles case such as Scammed USDT Lost BTC, Coinbase Wallet Forgotten password, ETH and coins, etc. Anything that has to do with cryptocurrency or lost digital assets, ZEUS can help you Do you Need Help? Website https://zeusrecoveryservices.com Mailbox [email protected] WhatsApp number +447798816938 Telegram https://t.me/Zeuscryptorecoveryservices
-
13.10.26 14:14
lisalisa22
Legitimate Cryptocurrency Recovery Services: Consult ZEUS CRYPTO RECOVERY SERVICES Zeus Crypto Recovery Services supports individuals exploring options after cryptocurrency losses from fraud, unauthorised transfers, or wallet access issues. Services may include blockchain analysis, wallet tracing, and evidence gathering for investigations. Each case is reviewed. Zeus Crypto Recovery Services is a trusted company with the highest success rate among cryptocurrency recovery services in 2025/2026 and is highly recommended if you have been scammed. ZEUS CRYPTO RECOVERY SERVICES handles case such as Scammed USDT Lost BTC, Coinbase Wallet Forgotten password, ETH and coins, etc. Anything that has to do with cryptocurrency or lost digital assets, ZEUS can help you Do you Need Help? Website https://zeusrecoveryservices.com Mailbox [email protected] WhatsApp number +447798816938 Telegram https://t.me/Zeuscryptorecoveryservices
-
17.10.26 12:58
melissathomason573
Professional Crypto Recovery Testimonial After losing a significant amount of cryptocurrency through a scam on Twitter, I was unsure whether my Bitcoin funds could ever be recovered. The experience was extremely stressful, particularly because I encountered several individuals and services claiming they could help recover my assets, only to discover that some were fraudulent themselves. A friend eventually referred me to CAPITAL CRYPTO RECOVER. Their team handled my case professionally, discreetly, and efficiently. With their assistance, I successfully recovered approximately $130,000 worth of USDT in just over a week. My experience taught me the importance of being extremely cautious when seeking cryptocurrency recovery services, as scammers often target victims a second time. I am grateful to CAPITAL CRYPTO RECOVER for the assistance I received and wanted to share my experience with others who may be facing a similar situation. If you’ve been compromised, don’t lose hope—and be careful of fraudsters posing as saviors. CAPITAL CRYPTO RECOVER are real professionals in crypto recovery. I am a living proof of their effectiveness, you can reach them through Phone (Call/WhatsApp): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
17.10.26 12:58
melissathomason573
Professional Crypto Recovery Testimonial After losing a significant amount of cryptocurrency through a scam on Twitter, I was unsure whether my Bitcoin funds could ever be recovered. The experience was extremely stressful, particularly because I encountered several individuals and services claiming they could help recover my assets, only to discover that some were fraudulent themselves. A friend eventually referred me to CAPITAL CRYPTO RECOVER. Their team handled my case professionally, discreetly, and efficiently. With their assistance, I successfully recovered approximately $130,000 worth of USDT in just over a week. My experience taught me the importance of being extremely cautious when seeking cryptocurrency recovery services, as scammers often target victims a second time. I am grateful to CAPITAL CRYPTO RECOVER for the assistance I received and wanted to share my experience with others who may be facing a similar situation. If you’ve been compromised, don’t lose hope—and be careful of fraudsters posing as saviors. CAPITAL CRYPTO RECOVER are real professionals in crypto recovery. I am a living proof of their effectiveness, you can reach them through Phone (Call/WhatsApp): +1 (336) 390-6684 Email: [email protected] Alternate Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
24.10.26 03:16
lxbfYeaa
e
-
24.10.26 03:16
lxbfYeaa
e
-
24.10.26 03:16
lxbfYeaa
e
-
24.10.26 03:16
lxbfYeaa
e
-
24.10.26 03:23
lxbfYeaa
e
-
24.10.26 03:23
lxbfYeaa
e
-
24.10.26 03:24
lxbfYeaa
e
-
25.10.26 14:35
lydiasmitth456
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
25.10.26 14:35
lydiasmitth456
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
27.10.26 01:58
KATHLEEN
Cyberspacetechexpert focuses on recovering stolen cryptocurrency, particularly USDT and bitcoin. She is well-known for helping victims of digital asset theft. Her reputation arises from successful recoveries that have allowed many to regain their lost funds. I witnessed this when $74,000 was taken from me in January. Thanks to the best female hacker Gracias, I recovered the entire amount in just 14 hours. Her prompt response and effective methods relieved my financial burden. Her commitment to helping others is evident. She is always available to offer solutions to those facing similar problems. For assistance, she can be reached via email Cyberspacetechexpert@gmail .com. or speak to her on What App at + 44 7476618364.
-
27.10.26 02:22
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
27.10.26 02:22
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
27.10.26 02:25
KATHLEEN
Cyberspacetechexpert focuses on recovering stolen cryptocurrency, particularly USDT and bitcoin. She is well-known for helping victims of digital asset theft. Her reputation arises from successful recoveries that have allowed many to regain their lost funds. I witnessed this when $74,000 was taken from me in January. Thanks to the best female hacker Gracias, I recovered the entire amount in just 14 hours. Her prompt response and effective methods relieved my financial burden. Her commitment to helping others is evident. She is always available to offer solutions to those facing similar problems. For assistance, she can be reached via email Cyberspacetechexpert@gmail .com. or speak to her on What App at + 44 7476618364.
-
27.10.26 23:04
kevinlong
Telegram : ( @Drkevinlong) Whatsapp : +237 6 71 10 09 15 SIGNAL : DrLong260.31 Zangi number: 9340169421 Telegram : ( @Drkevinlong) Buy undetectable counterfeit money online counterfeit money sale https://premiumcounterfeitmoney.com/counterfeit-money/ buy counterfeit dollar <a href="https://premiumcounterfeitmoney.com/counterfeit-money/">buy counterfeit dollar</a> <a href="https://premiumcounterfeitmoney.com/where-to-get-counterfeit-money-in-australia/">undetectable counterfeit money for sale</a> <a href="https://premiumcounterfeitmoney.com/buy-counterfeit-australian-banknotes/ purchase counterfeit money where can i buy counterfeit money buy counterfeit money online Undetectable Counterfeit Bank Notes Buy Counterfeit Banknotes Online Undetectable counterfeit Bank Notes Buy Counterfeit Banknotes Online Premium Monetary Coltd has become extremely popular nowadays due to our obvious advantages. First of all, we are cheaper than others, and you do not need to pay any additional custom fee Counterfeit Banknotes. best place to buy counterfeit money online Secondly, realistic prop notes it’s a great way to finally being able to afford those expensive items you would have never thought of buying before. And last but not least, you can order Counterfeit money from the comfort of your home. Just choose the currency you need, mention the required amount, and proceed to checkout. You will get your bills in a matter of days and will be able to start living the life the way you want. Sounds like a dream? Here at Premium Counterfeit Money, we will show you that it is a reality. Undetectable counterfeit Bank Notes | Buy Counterfeit Banknotes Online With more than 8 years of experience behind our belts, we provide our customers with Counterfeit money for sale of unparalleled quality that unlikely to be detected as not genuine. We use the latest printing techniques to make sure the bills you order from us will pass any security checks. When shopping with us, you can rest easy knowing that you will get the best forged bills on the market that have all the security features, including watermarks, security threads, and foil elements. Undetectable counterfeit Bank Notes | Buy Counterfeit Banknotes Online Buy undetected counterfeit bank notes at the best prices worldwide from our online store. This blog will look at the different aspects of using our online store and show why you should buy undetected counterfeit bank notes from us. Undetectable counterfeit Bank Notes | Buy Counterfeit Banknotes Online Buy high quality undetectable counterfeit Banknotes Buy Fake Euros Online ,Experience the pinnacle of authenticity with your premier destination to buy authentic fake Euro bills online in Europe. As the best supplier of fake money Euro located in California, USA, with over 15 years of experience and a workforce of over 410 employees, we are dedicated to providing the highest quality counterfeit Euro to European countries. Last year alone, we printed billions of fake Euro using the most advanced and realistic chemicals and technology to ensure our counterfeit Euro is highly scannable and undetectable. Our Euro bills pass all UV tests and are perfect for various purposes – from financial transactions to movies, clubs, restaurants, educational activities, and more. We deliver to countries that use Euro bills, including Germany, France, Italy, Spain, Netherlands, Belgium, Austria, and Portugal. With a track record of excellence and great customer service. Buy %100 Realistic Counterfeit €5, €10, €20, €50, €100 Bills Online | Most Reliable Supplier of Euro Counterfeit Bills. https://premiumcounterfeitmoney.com/ <a href="https://premiumcounterfeitmoney.com/product/counterfeit-canadian-dollars/">supreme quality undetectable counterfeit money</a> Buy Counterfeit Euro Online Fake Euro Money For Sale https://premiumcounterfeitmoney.com/product/counterfeit-us-dollars/ Best counterfeit money for sale Are you a avid collector of numismatic paper money? Our digital exchange is your premier destination for purchasing prized pieces from around the planet. We feature a diverse selection of rare currency, spanning from <a href="https://premiumcounterfeitmoney.com/buy-fake-euros-online/"> buy fake currency online</a> <a href="https://premiumcounterfeitmoney.com/counterfeit-australian-dollars/">where can i buy counterfeit money</a> <a href="https://premiumcounterfeitmoney.com/buy-undetectable-counterfeit-money-in-israel/">purchase counterfeit money</a> <a href="https://premiumcounterfeitmoney.com/product/counterfeit-us-dollars/">buy counterfeit money online</a>
-
30.10.26 06:11
melissathomason573
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
02.11.26 02:57
navare34
I remember very well how falling for a scam impacted my life. What started as an investment I genuinely believed would help me financially ended up taking so much more from me than money. I was overwhelmed with regret, fear, and anger at myself. I barely had peace of mind, and there were days when I felt completely lost and emotionally exhausted, wondering how I was ever going to move forward. Things started to change when I found 4victimsbyvictims.org, a community set up by victims to help other victims. Hearing real people talk about what they had been through made me feel safe for the first time in a long while. They understood the confusion and the pain because they had lived it themselves. The practical tips, guidance on what to do next, and simple reassurance that I was not alone became the beginning of my healing and gave me hope that my life could move forward again. If you have fallen victim to an investment scam and don't know where to turn, you can reach the community via email at - [email protected].
-
02.11.26 21:26
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
02.11.26 21:26
lisawerth897
My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
-
05.11.26 18:21
Brian147
HAVE YOU LOST A FORTUNE TO ROMANCE SCAM, CRYPTOCURRENCY INVESTMENT FRAUDSTERS, PIG BUTCHERING HOAX, PHISHING LINKS & ET CETERA ? HERE COMES REDEMPTION WITH EMERALD HACKS….SCHEDULE A CONSULTATION WITH AN EXPERT TODAY. Emeraldhacks was founded by a small group of blockchain analysts and financial-crime investigators who spent years building tracing tools for exchanges and law enforcement. We saw the same pattern too often: a victim reports a scam, and the trail goes cold because no one follows it fast enough. We built Emeraldhacks to close that gap. Every case is handled by an analyst, not a call-center script — and every case gets an honest read on whether recovery is realistic before you spend a dollar. Explore our website below to get started- emeraldhacks(.)netlify(.)app Email- emeraldhacks (.) org (@) gmail (.) com Be alert for fake hackers, stay vigilant.
-
06.11.26 13:22
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
06.11.26 13:22
kimberlyhebertt6877
I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
-
08.11.26 13:35
derek1987
Be wary of crypto recovery services that promise to get lost funds back. Many make excuses or fail to deliver, leaving you worse off. After several failed tries, I found an expert who helped recover my stolen crypto. Their help gave me peace of mind. If you've lost crypto, call/consult cyberspacetechexpert@ gmail.com +44 7476618364 them or send a message on WhatsApp. Avoid scams. she will be able to help get your funds back with proof and feds reports if already filed.
-
09.11.26 10:14
lydiasmitth456
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
-
09.11.26 10:14
lydiasmitth456
HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
Для участия в Чате вам необходим бесплатный аккаунт pro-blockchain.com
Войти
Регистрация
Похожие новости
Подпишись на telegram канал и узнавай первым обо всех новостях