README.md

JWT Token Authentication in Golang and MongoDB Backend

This repository contains a sample project for implementing JWT token authentication in a Golang and MongoDB backend. The project uses middlewares for verification and proper validation of login and register data.

Prerequisites

• Golang
• MongoDB
• Postman or any similar tool for API testing

Installation

1. Clone the repository

2. Navigate to the project directory

3. Run go mod download to download the required dependencies

4. Create a .env file and add the following variables:

   PORT=<port_number>
   MONGO_URI=<mongodb_uri>
   JWT_SECRET=<jwt_secret_key>
   

5. Run the project using go run main.go

API Endpoints

/user/register

• POST Request

• Endpoint - http://localhost:<port_number>/user/register

• Request Body - JSON

  {
  "name": "<user_name>",
  "email": "<user_email>",
  "password": "<user_password>"
  }
  

• Response - JSON

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

/user/login

• POST Request

• Endpoint - http://localhost:<port_number>/user/login

• Request Body - JSON

  {
  "email": "<user_email>",
  "password": "<user_password>"
  }
  

• Response - JSON

  {
  "token": "<jwt_token>"
  }
  

/check/get/:id

• GET Request
• Endpoint - http://localhost:<port_number>/check/get/:id
• Headers -
  • Authorization: Bearer <jwt_token>
• Response - JSON

  {
  "message": "User authorized successfully!",
  "id": "<user_id>"
  }
  

Middlewares

The project uses the following middlewares for JWT token verification and proper validation of login and register data:

1. validateRegisterData - Validates the user registration data before creating a new user.
2. validateLoginData - Validates the user login data before generating a new JWT token.
3. verifyToken - Verifies the JWT token sent in the request headers before granting access to the protected routes.

Conclusion

This project provides a basic setup for implementing JWT token authentication in a Golang and MongoDB backend. You can customize and extend the project based on your specific requirements.