📓 Journal App — Spring Boot Backend

Production-ready backend built with Spring Boot featuring JWT authentication, Google OAuth2 login, MongoDB Atlas persistence, Redis caching, Kafka messaging, email notifications, and external Weather API integration.

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🚀 Features

• 🔐 JWT Authentication & Authorization
• 🌐 Google OAuth2 Login
• ☁️ MongoDB Atlas Database
• ⚡ Redis Caching Layer
• 📨 Kafka Producer & Consumer Integration
• 📧 Email Notification Service (SMTP)
• 🌦 Weather API Integration
• ⏰ Scheduled Background Jobs
• 📄 Swagger/OpenAPI Documentation

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🧰 Tech Stack

• Java 8+
• Spring Boot
• Spring Security
• MongoDB Atlas
• Redis
• Apache Kafka
• OAuth2 Client
• JWT
• Maven

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📁 Project Structure

src/main/java/net/areebamaar/journalApp
 ├── Config
 ├── Controller
 ├── Service
 ├── Repository
 ├── Entity
 ├── Filter
 ├── Scheduler
 └── Utilis

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⚙️ Environment Configuration

This project uses environment variables for sensitive configuration.

Check .env.example for required variable names.

Required variables include:

MONGODB_URI GOOGLE_CLIENT_ID GOOGLE_CLIENT_SECRET REDIS_HOST REDIS_PORT REDIS_PASSWORD GMAIL_ID GMAIL_PASSCODE KAFKA_SERVER KAFKA_CONFIG CLIENT_ID WEATHER_API_KEY

⚠️ Never commit real secrets to the repository.

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▶️ Running the Application (Local)

1. Clone the repository

git clone https://github.com/areebamaar/journal-app.git

2. Configure environment variables in IntelliJ Run Configuration or system environment.

3. Run the application

mvn spring-boot:run

Application will start on:

http://localhost:8080

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📖 API Documentation

Swagger UI:

http://localhost:8080/swagger-ui.html

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🌍 Deployment

The project is designed for deployment on a VPS using environment variables for secure configuration.

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👨‍💻 Author

Areeb Amaar Backend Developer | Spring Boot | Java

GitHub: https://github.com/areebamaar