💚 Backend README (Spring Boot + PostgreSQL)

📌 User Management Backend (Spring Boot)

A robust Spring Boot REST API providing full CRUD functionality for user management. Integrated with PostgreSQL and structured using Spring Data JPA.

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🚀 Features

• Create user
• View all users
• View by ID
• Update user
• Delete user
• Exception handling
• CORS support
• PostgreSQL integration

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🛠️ Tech Stack

Java 17
Spring Boot
Spring Web
Spring Data JPA
PostgreSQL
Maven

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📦 Installation

1️⃣ Clone the repo

git clone https://github.com/codeganesh452/user-management-backend.git
cd user-management-backend

2️⃣ Setup PostgreSQL

CREATE DATABASE usermanagementsystem;

3️⃣ Configure application.properties

spring.datasource.url=jdbc:postgresql://localhost:5432/usermanagementsystem
spring.datasource.username=postgres
spring.datasource.password=YOUR_PASSWORD
spring.datasource.driver-class-name=org.postgresql.Driver
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true

4️⃣ Run the application

mvn spring-boot:run

Backend runs on:

http://localhost:8080

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🔗 API Endpoints

Method	Endpoint	Description
POST	/createuser	Add new user
GET	/viewall	Fetch all users
GET	/view/{id}	Fetch user by ID
PUT	/user/{id}	Update user
DELETE	/user/{id}	Delete user

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📁 Project Structure

src/
│── controller/
│── model/
│── repository/
│── exception/
│── UserManagementSystemApplication.java

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🚀 Future Enhancements

• JWT authentication
• Role-based access
• Swagger API documentation
• Search + pagination

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📜 License

MIT License

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You can copy the respective section into each repo's README.md file.