Transaction statistics

📌 Project Overview

This project is a API Rest that receive transactions and return statistic this transaction. This project is lab of learn about design pattern.

📌 Busines Rules

This Api receive transactions and calc quant, sum, average, min value and max value of transactions.

📌 Technologies Used

• Java Version: 21

• Libraries:

  • spring-boot
  • jackson-databind
  • spring-boot-starter-test

• Build Tool: Maven

Design patterns

• Notification pattern: (Based DDD) See into class Notification.java
• Self validation pattern: (Based DDD) See into class TransactionRequest.java

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🚀 Build and Run the Project

🔧 Running Java (Locally)

1. Open your command-line terminal.
2. Navigate to the project directory: Example - cd /Enviroment/youworkspace/transaction-statistics
3. Execute the command: mvn clean package
4. Execute the command: java -jar target/app-0.1.jar
5. Execute curl the terminal: - curl --location 'localhost:8080/transaction' \ --header 'Content-Type: application/json' \ --data '{ "value":"90", "dateTime":"2025-07-13T15:40:00Z" }'

🔧 Running Java using Docker (Locally)

1. Open your command-line terminal.
2. Navigate to the project directory: Example - cd /Enviroment/youworkspace/transaction-statistics
3. Execute the command: mvn clean package
4. Execute the command for create an image docker: docker buildx build -t transaction-statistics:v1 .
5. Execute the command for running image: docker run -it -p 8080:8080 transaction-statistics:v1
6. Execute curl the terminal: - curl --location 'localhost:8080/transaction' \ --header 'Content-Type: application/json' \ --data '{ "value":"90", "dateTime":"2025-07-13T15:40:00Z" }'