Skip to content

Latest commit

 

History

History
132 lines (99 loc) · 3.29 KB

readme.md

File metadata and controls

132 lines (99 loc) · 3.29 KB

Auth Service

Auth Service is a microservice for user authentication using JWT tokens, PostgreSQL, and Memcached.


Features

  1. User Registration (POST /register): Registers a new user in the system.

  2. Authentication and Token Generation (POST /login): Authenticates the user and returns a JWT token.

  3. Token Validation (GET /validate-token): Validates the token using Memcached and the database as a fallback.


Technologies

  • Go: Programming language.
  • PostgreSQL: Database for storing user information.
  • Memcached: Caching layer for token validation.
  • Goose: Database migration tool.
  • Gin: Web framework for building REST APIs.

Installation and Setup

Steps:

  1. Clone the repository:

    git clone https://github.com/your-repo/auth-service.git
    cd auth-service
  2. Ensure you have Go, Docker, and Docker Compose installed.

  3. Start the services (PostgreSQL, Memcached, and the application):

    docker-compose up --build
  4. Run database migrations:

    make migrate-up
  5. The service will be available at:

    http://localhost:8080
    

API Examples

Register a User

curl -X POST http://localhost:8080/register \
  -H "Content-Type: application/json" \
  -d '{
        "username": "testuser",
        "password": "testpassword"
      }'

Authenticate and Get a Token

curl -X POST http://localhost:8080/login \
  -H "Content-Type: application/json" \
  -d '{
        "username": "testuser",
        "password": "testpassword"
      }'

Validate a Token

curl -X GET http://localhost:8080/validate-token \
  -H "Authorization: Bearer <your JWT token>"

Makefile Commands

  • Build the application: make build
  • Run the application: make run
  • Format the code: make fmt
  • Lint the code: make lint
  • Run migrations: make migrate-up
  • Rollback migrations: make migrate-down

Environment Variables

The following environment variables can be used for configuration:

Variable Description Default
DATABASE_URL PostgreSQL connection string postgres://user:password@localhost:5432/auth_db?sslmode=disable
MEMCACHED_HOST Memcached host localhost
MEMCACHED_PORT Memcached port 11211

Directory Structure

auth-service/
├── cmd/
│   └── auth-service/      # Application entry point
├── internal/
│   ├── controller/        # API controllers
│   ├── model/             # Database models
│   ├── repository/        # Database access layer
│   └── service/           # Business logic
├── config/                # Configuration files
├── db/
│   └── migrations/        # Database migrations
├── Dockerfile             # Docker build configuration
├── docker-compose.yml     # Docker Compose configuration
├── Makefile               # Automation tasks
└── README.md              # Project documentation