Rust-Node Authentication Service

Overview

This project is a robust authentication service that integrates a Rust backend (compiled as a Node.js native module using Neon bindings) with an Express.js server. It uses MongoDB for storing user information and JWT tokens for secure authentication.

Key Features

• User Registration with password hashing (using bcrypt).
• Secure Login with JWT generation.
• Protected routes using JWT verification middleware.
• MongoDB integration for persistent user data storage.

Endpoints

1. User Registration

• URL: /signup
• Method: POST
• Request Body:

  {
    "name": "John Doe",
    "email": "john.doe@example.com",
    "username": "johndoe",
    "password": "securepassword"
  }

• Response:
  • Success (201):

    {
      "message": "User registered successfully."
    }

  • Failure (400 or 422):

    {
      "error": "Validation failed: <details>."
    }

2. User Login

• URL: /login
• Method: POST
• Request Body:

  {
    "username": "johndoe",
    "password": "securepassword"
  }

• Response:
  • Success (200):

    {
      "token": "<jwt-token>"
    }

  • Failure (401):

    {
      "error": "Invalid username or password."
    }

3. Protected Route

• URL: /protected
• Method: GET
• Headers:

  {
    "Authorization": "Bearer <jwt-token>"
  }

• Response:
  • Success (200):

    {
      "message": "Access granted."
    }

  • Failure (401):

    {
      "error": "Unauthorized."
    }

Environment Variables

Variable	Description	Default Value
MONGO_URI	MongoDB connection string	mongodb://localhost:27017
DATABASE_NAME	Database name for the project	auth_service