🌟 Spring Boot CRUD API

A simple REST API built with Spring Boot that allows you to manage users. The API provides endpoints to create, read, update, and delete user information.

✨ Features

• 🧑‍💻 Get All Users: Retrieve a list of all users.
• 🔍 Get User by ID: Fetch details of a specific user by their ID.
• ➕ Create a New User: Add a new user to the database.
• ♻️ Update an Existing User: Modify details of an existing user.
• ❌ Delete a User by ID: Remove a user from the database.

🛠️ Technologies Used

• Java: Programming language.
• Spring Boot: Framework for building RESTful web services.
• Maven: Dependency management.

🚀 Getting Started

Prerequisites

• Java 17 or later
• Maven 3.8.x or later

Installation

1. Clone the repository:

   git clone https://github.com/your-username/spring-boot-crud-api.git
   cd spring-boot-crud-api

2. Build the project with Maven:

   mvn clean install

3. Run the application:

   mvn spring-boot:run

   The application will start and run on http://localhost:4000.

📚 API Endpoints

Get All Users

• GET /user

  Retrieves a list of all users.

Example Request

curl -X GET http://localhost:4000/user

Get User by ID

• GET /user/{id}

  Fetches the details of a user by their ID.

Example Request

curl -X GET http://localhost:4000/user/1

Create a New User

• POST /user

  Adds a new user to the database.

Example Request

curl -X POST http://localhost:4000/user -H "Content-Type: application/json" -d '{"firstName": "John", "lastName": "Doe", "email": "[email protected]"}'

Update an Existing User

• PUT /user/{id}

  Updates details of an existing user.

Example Request

curl -X PUT http://localhost:4000/user/1 -H "Content-Type: application/json" -d '{"firstName": "John", "lastName": "Doe", "email": "[email protected]"}'

Delete a User by ID

• DELETE /user/{id}

  Removes a user from the database by their ID.

Example Request

curl -X DELETE http://localhost:4000/user/1

🤝 Contributing

Contributions are welcome! Feel free to fork the repository and open a pull request.