go-exercises-backend, v1.0-beta

Back-end of the service for solving programming exercises.

Beta of the major version. Implement producing solutions via the RabbitMQ message broker; add the wait-for-it script to the Docker image.

Change Log

• databases:
  • storing data in the PostgreSQL database:
    • add the storages.CloseDB() function;
• interaction with queues:
  • using the RabbitMQ message broker;
  • common properties:
    • automatic declaring of the used queues;
    • passing of a message data in JSON;
  • operations:
    • producing solutions:
      • concurrent producing;
• distributing:
  • Docker image:
    • add the wait-for-it script.

Features

• RESTful API:
  • models:
    • task model:
      • storing:
        • title;
        • description;
        • boilerplate code;
        • test cases:
          • all test cases are represented by a single string;
      • operations:
        • getting all tasks;
        • getting a single task by an ID;
        • creating;
        • updating by an ID;
        • deleting by an ID;
    • solution model:
      • storing:
        • task ID;
        • code;
      • operations:
        • getting all solutions by a task ID;
        • getting a single solution by an ID;
        • creating;
  • representing:
    • in a JSON:
      • payloads:
        • of requests;
        • of responses;
    • as a plain text:
      • errors;
• server:
  • storing settings in environment variables;
  • supporting graceful shutdown;
  • logging:
    • logging requests;
    • logging errors;
  • panics:
    • recovering on panics;
    • logging of panics;
• databases:
  • storing data in the PostgreSQL database;
• interaction with queues:
  • using the RabbitMQ message broker;
  • common properties:
    • automatic declaring of the used queues;
    • passing of a message data in JSON;
  • operations:
    • producing solutions:
      • concurrent producing;
• distributing:
  • Docker image;
  • Docker Compose configuration.

Usage

$ go-exercises-backend

Environment variables:

• SERVER_ADDRESS — server URI (default: :8080);
• STORAGE_ADDRESS — PostgreSQL connection URI (default: postgres://postgres:postgres@localhost:5432/postgres?sslmode=disable);
• MESSAGE_BROKER_ADDRESS — RabbitMQ connection URI (default: amqp://rabbitmq:rabbitmq@localhost:5672);
• SOLUTION_REGISTER_BUFFER_SIZE — solution registration channel capacity (default: 1000);
• SOLUTION_REGISTER_CONCURRENCY — amount of solution registration threads (default: 1000).

Repository

Link: https://github.com/thewizardplusplus/go-exercises-backend/tree/v1.0-beta.

Content: code.

License: MIT.