Hermes

Go Authentication Service Template 🔐

A production-ready authentication service template built with Go, featuring user registration, login, and session management. This template uses Docker for containerization and follows modern security practices.

Features ✨

• User registration and login
• JWT-based authentication
• Password hashing with bcrypt
• Email verification
• Docker containerization
• RESTful API endpoints
• Rate limiting by IP
• Input validation

Tech Stack 🛠

• Go 1.21+
• PostgreSQL
• Docker & Docker Compose
• JWT for token management
• Go-Fiber Web Framework

Prerequisites 📋

• Docker and Docker Compose installed
• Go 1.21 or higher (for local development)
• Make (optional, for using Makefile commands)

Quick Start 🚀

1. Clone the repository:

git clone /~https://github.com/palSagnik/hermes
cd go-auth-template

2. Set up environment variables:

cp .env.example .env
# Edit .env with your configurations

3. Start the services using Docker Compose:

docker-compose up -d

The service will be available at http://localhost:9000

API Endpoints 🌐

Authentication

POST /auth/signup
POST /auth/login
GET  /auth/verify/{token}

Health Check

GET  /alive

User Management

GET    /api/users
GET    /api/userdetails

Environment Variables 🔧

export POSTGRES_USER="postgres"
export POSTGRES_PASSWORD="password"

export POSTGRES_HOST="postgres-db"
export POSTGRES_DATABASE="hermes"
export POSTGRES_SSLMODE="disable"

export APP_PORT="9000"

export PUBLIC_URL="localhost:9000"
export EMAIL_ID="s4ych33se.ctf@gmail.com"
export EMAIL_AUTH="API TOKEN"
export TOKEN_SECRET="SECRET"

Directory Structure 📁

hermes/
├── Dockerfile
├── README.md
├── backend
│   ├── config
│   │   ├── db.go
│   │   ├── general.go
│   │   └── mailsecrets.go
│   ├── database
│   │   ├── database.go
│   │   ├── pgdata
│   │   │   └── global
│   │   ├── queries.go
│   │   └── schemas.go
│   ├── go.mod
│   ├── go.sum
│   ├── handler
│   │   ├── api.go
│   │   ├── auth.go
│   │   └── misc.go
│   ├── main.go
│   ├── middleware
│   │   ├── middleware.go
│   │   └── ratelimiter.go
│   ├── models
│   │   └── authModels.go
│   ├── router
│   │   └── routes.go
│   ├── template
│   │   └── mail.html
│   └── utils
│       ├── mail.go
│       └── utils.go
├── compose.yml
└── scripts
    ├── init.sh
    ├── reset.sh
    └── run.sh

Development 💻

Running Locally

# Install dependencies
go mod download

# Run the server
# Uncomment POSTGRES_HOST = localhost
./scripts/run.sh

Docker Commands 🐳

# Run with Docker Compose
docker compose up -d

# View logs
docker compose logs -f

Security Considerations 🔒

• Passwords are hashed using bcrypt
• JWT tokens for authentication
• Rate limiting on authentication endpoints
• Input validation and sanitization

Contributing 🤝

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License 📝

This project is licensed under the MIT License - see the LICENSE file for details.