📚 Course Registration System – Backend

A production-ready backend service for a full-stack Course Registration System, built with Spring Boot, MySQL, JPA/Hibernate, and containerized with Docker.
This backend powers the deployed frontend app:

🔗 Live Frontend: Course Registration System

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🚀 Deployment Architecture

• Backend API (Spring Boot) → Deployed on Render
• Database (MySQL) → Hosted on Railway
• Frontend (HTML/JS) → Deployed on Netlify
• API Testing → Verified via Postman

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🏗️ System Architecture

flowchart TD
    A["Frontend - Netlify\n(HTML/CSS/JS/Bootstrap)"] -->|REST API Calls| B["Backend - Render\n(Spring Boot, JPA)"]
    B -->|SQL Queries| C["Database - Railway\n(MySQL)"]

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✨ Features

• 🔎 List all available courses
• 📝 Register a student for a course
• 👨‍🎓 View enrolled students
• ✅ REST API architecture (tested with Postman)
• ✅ Persistent storage with MySQL + JPA/Hibernate
• ✅ Clean Service & Repository layer separation
• ✅ Configurable environment via application.properties
• ✅ Dockerized backend for easy deployment

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🛠️ Tech Stack

• Language: Java 17+
• Framework: Spring Boot
• ORM: Spring Data JPA / Hibernate
• Database: MySQL (Railway)
• Build Tool: Maven
• Deployment: Render + Docker

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📸 Screenshots

API Testing Backend Deployment MySQL Deployment

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📂 Project Structure

course-backend/
│── src/main/java/com/example/Course/Registration/System
│ ├── controller/ # REST Controllers
│ ├── model/ # Entities (Course, CourseRegister)
│ ├── repository/ # Spring Data Repositories
│ ├── service/ # Business Logic Layer
│ └── CourseRegistrationSystemApplication.java
│
│── src/main/resources
│ ├── application.properties # Config (DB, ports, etc.)
│
│── Dockerfile
│── pom.xml
│── README.md

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⚡ Setup Instructions

1️⃣ Clone the repository

git clone https://github.com/seshathri044/course-backend.git
cd course-backend

2️⃣ Configure Database

Update src/main/resources/application.properties with your DB credentials:
spring.datasource.url=jdbc:mysql://<RAILWAY_DB_HOST>:<PORT>/<DB_NAME>
spring.datasource.username=<DB_USER>
spring.datasource.password=<DB_PASS>
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true

3️⃣ Run with Maven (local dev)

mvn spring-boot:run

Backend will start at 👉 http://localhost:8080

4️⃣ Run with Docker

Build and run containerized backend: docker build -t course-backend . docker run -p 8080:8080 course-backend

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🔗 API Endpoints

Method	Endpoint	Description
GET	/courses	List all available courses
POST	/courses/register	Register a student
GET	/courses/enrolled	View enrolled students

👉 Full API collection tested in Postman.

🔄 Repo Navigation

Frontend Repo 👉 course-frontend

Backend Repo 👉 course-backend

🤝 Contributing

• Contributions are welcome!

📜 License

This project is licensed under the Apache-2.0 License – see the LICENSE file for details.