This is a tutorial project that demonstrates how to implement JWT (JSON Web Token) authentication using the Go Fiber web framework.

• User registration
• User login
• Authenticated user retrieval
• User logout

• Go
• Go Fiber
• GORM (Object-Relational Mapping)
• MySQL
• JWT (JSON Web Tokens)
• Bcrypt (Password hashing)

The project is structured as follows:

.
├── controllers
│   └── authController.go
├── database
│   └── connection.go
├── main.go
├── models
│   └── user.go
└── routes
    └── routes.go

• main.go: The entry point of the application, responsible for setting up the Fiber app, connecting to the database, and registering the routes.
• database/connection.go: Handles the connection to the MySQL database using GORM.
• models/user.go: Defines the User model and its properties.
• routes/routes.go: Defines the application routes and maps them to the corresponding controllers.
• controllers/authController.go: Implements the logic for user registration, login, user retrieval, and logout.

1. Install Go and set up your development environment.
2. Install the required dependencies:
   • Go Fiber: go get github.com/gofiber/fiber/v2
   • GORM: go get gorm.io/gorm and go get gorm.io/driver/mysql
   • JWT: go get github.com/golang-jwt/jwt/v5
   • Bcrypt: go get golang.org/x/crypto/bcrypt
3. Create a MySQL database named go_auth.
4. Update the database connection details in database/connection.go to match your MySQL configuration.
5. Run the application:

   go run main.go
   

6. The application will start running on http:https://localhost:8000.

• POST /api/register: Register a new user.
• POST /api/login: Log in a user and receive a JWT cookie.
• GET /api/user: Retrieve the authenticated user's information.
• POST /api/logout: Log out the user by removing the JWT cookie.

You can check the complete documentation here: https://josehurtadobaeza.super.site/databases/blog-posts-database/doing-golang-jwt-authentication-tutorial-freecodecamp