🚀 Spring Blog API

Welcome to Spring Blog API! This is a modern, secure, and scalable RESTful backend service for managing blog posts and user authentication, built with Spring Boot. The project is currently under active development and new features are coming soon.

🌱 Newcomers Welcome! We encourage developers of all experience levels to contribute. Whether you're new to open source or a seasoned pro, your ideas and code are valued here. Check out our CONTRIBUTING.md for easy ways to get started!

🛠️ Technologies Used

Java 24
Spring Boot 3.5
Spring Security
Spring Data JPA
Hibernate ORM
PostgreSQL
JWT (JSON Web Token)
Lombok
Spring Mail
Gradle
Docker & Docker Compose
JUnit 5
PgAdmin
Resilience4j (Rate Limiting & Circuit Breaker)

⚡ Getting Started

Prerequisites

Java 24
Docker (optional, for containerization)
Gradle

🚦 Setup

Clone the repository:

git clone <repository-url>
cd spring-blog-api

Build the project:
```
./gradlew build
```
Run Docker:
```
docker-compose up
```
Use the API service on:
```
http://localhost:8082/api/v1/
```

⚙️ Configuration

Edit src/main/resources/application.yml to configure database and other settings.

📖 API Documentation

Interactive API documentation is available via Swagger UI.
Most requests require an Authorization: Bearer <JWT> header.

http://localhost:8082/api/v1/swagger-ui/index.html#/

Notes

Duplicate prevention is enforced by a unique database constraint (user_id, blog_id) and idempotent service logic.
The current user is resolved from the JWT claim uid.
Error codes:
- 401 Unauthorized — missing/expired token
- 404 Not Found — blog does not exist

🛡️ Rate Limiting & Circuit Breaker

This API implements robust rate limiting and circuit breaker patterns to protect against abuse and service failures:

Rate Limiting

Default API endpoints: 20 requests/60 seconds
Authentication endpoints: 5 requests/60 seconds

Circuit Breaker

Automatic database failure detection
Service degradation during outages
Graceful error responses (503 Service Unavailable)

Star History

✨ Contributors

Thanks goes to these wonderful people (emoji key):

_{huseynovvusal} 💻	_{jaindeepak1401} 💻	_Surya00011 💻	_LuisMunizEnc 💻	_c-arianna 💻	_axgiri 💻	_{chandraKiranBolla} 💻
_SRokesh-28 💻	_{Pranjall-Gupta} 💻	_{SantiagoLuna109} 💻	_xinjia-ctrl 💻	_{shivaprasadphshiva} 💻	_naookko 💻	_{liuyuanyuan090} 💻
_joonseolee 💻	_jkim1202 💻	_fercamoub 💻	_Loumo-on 💻