BTG Pactual Back-end Challenge

Microservice developed to address the BTG Pactual challenge. The challenge involves creating a microservice that:

• Consumes data from a queue
• Stores this data in a database
• Provides functionality to:
  • Retrieve the total amount of an order
  • Get the total number of orders for a customer
  • List orders made by a customer

This project has the following architecture:

Tecnologies

• ✅ Java 21
• ✅ SpringBoot
• ✅ Spring Data MongoDB
• ✅ RabbitMQ
• ✅ Docker
• ✅ JUnit 5 + Mockito(unit tests)
• ✅ IntelliJ IDEA Community Edition 2023.2.2

🚀 Installation

1. Clone the repository:

$ git clone https://github.com/Guilhermebit/btg-pactual-back-end-challenge.git

2. Install dependencies with Maven

3. Install docker: https://docs.docker.com/engine/install/

4. Run the following command:

./mvnw clean install

Usage

1. Run the following command:

docker-compose up 

2. Access RabbitMQ at http://localhost:15672

• Login using the default credentials (usually guest/guest).
• Navigate to the "Queues" menu and select the relevant queue.
• Paste the provided payload from the challenge into the Payload field.
• Click on "Publish Message" to send the message to the queue.

3. The API will be accessible at http://localhost:8081.

Api EndPoints

To test the HTTP requests, you can use Postman.
Download Postman here: https://www.postman.com/downloads/

List customer orders

GET /customers/{customerId}/orders

• Response 200 (application/json)

  • Body

    {
      "data": [
        {
          "orderId": 1001,
          "customerId": 1,
          "total": 120.00
        }
      ],
      "pagination": {
        "page": 0,
        "pageSize": 10,
        "totalElements": 1,
        "totalPages": 1
      }
    }

Troubleshooting

If you encounter issues, consider the following:

• Ensure all services are running properly in Docker.
• Check Docker logs for any errors related to RabbitMQ or MongoDB.
• Verify that the configuration files are correctly set up.