Email Generator

A modern full-stack application for generating professional emails using AI.
Built with Spring Boot (backend) and React (frontend), integrated with Google's Gemini API for intelligent email composition.

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🚀 Features

• AI-Powered Email Generation – Generate contextually relevant emails using Google Gemini API
• React Frontend – Responsive and intuitive UI
• Spring Boot Backend – Scalable backend with reactive WebFlux programming
• Real-time Processing – Asynchronous email generation using reactive streams
• Customizable Templates – Create, save, and reuse email templates
• User-Friendly Interface – Simple form inputs for quick email generation

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⚙️ Prerequisites

• Java: 24 (Preview version – ensure you have the appropriate JDK installed)
• Node.js: 16.x or later
• npm: 8.x or later
• Maven: 3.8.x or later
• Google Gemini API Key: Obtain from Google AI Studio

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⚡ Installation

✅ Backend Setup

git clone https://github.com/nihirborkar17/Repliznen.git
cd Repliznen/email-generator

Create src/main/resources/application.yml with the following content:

spring:
  application:
    name: email-generator

gemini:
  api:
    key: YOUR_GEMINI_API_KEY
    url: https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent

Build and run backend:

mvn clean install
mvn spring-boot:run

Backend will run at: http://localhost:8080

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✅ Frontend Setup

cd frontend
npm install

Create .env file in frontend/ with:

REACT_APP_API_URL=http://localhost:8080

Start frontend:

npm start

Frontend available at: http://localhost:3000

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🎯 Usage

1. Open browser and visit: http://localhost:3000
2. Fill in the form:
   • Recipient email address
   • Subject
   • Key points
   • Tone (formal, casual, etc.)
3. Click Generate Email
4. Review and edit the generated email
5. Copy or send the email directly from the UI

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📡 API Endpoints

• POST /api/generate-email – Generate an email
  Sample Request Body:

  {
    "recipient": "john@example.com",
    "subject": "Project Update",
    "keyPoints": ["Project completed ahead of schedule", "Under budget"],
    "tone": "professional"
  }

• GET /api/templates – Retrieve all saved email templates

• POST /api/templates – Save a new template

• PUT /api/templates/{id} – Update an existing template

• DELETE /api/templates/{id} – Delete a template

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📂 Project Structure

email-generator/
├── src/
│   ├── main/
│   │   ├── java/com/nenz/emailgenerator/
│   │   │   ├── controller/     # REST controllers
│   │   │   ├── service/        # Business logic
│   │   │   ├── model/          # Data models
│   │   │   ├── config/         # Configuration classes
│   │   │   └── EmailGeneratorApplication.java  # Main class
│   │   └── resources/
│   │       ├── application.yml # Configuration
│   │       └── static/         # Static resources
│   └── test/                   # Test classes
├── frontend/                   # React frontend
│   ├── public/
│   ├── src/
│   │   ├── components/         # React components
│   │   ├── services/           # API services
│   │   ├── hooks/              # Custom hooks
│   │   └── App.js              # Main App component
│   └── package.json
└── pom.xml                     # Maven configuration

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⚙️ Configuration

Customize src/main/resources/application.yml:

server:
  port: 8080

spring:
  webflux:
    base-path: /api

gemini:
  api:
    url: https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent
    timeout: 30s

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✅ Testing

Backend Tests

mvn test

Frontend Tests

cd frontend
npm test

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🤝 Contributing

1. Fork the repository
2. Create your feature branch:
   git checkout -b feature/amazing-feature
3. Commit your changes:
   git commit -m 'Add amazing feature'
4. Push branch:
   git push origin feature/amazing-feature
5. Open a Pull Request

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📄 License

MIT License – see the LICENSE file for details.

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🎉 Acknowledgments

• Spring Boot – Backend framework
• React – Frontend library
• Google Gemini – AI-powered email generation

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💬 Support

For issues or questions, please open an issue on the GitHub Repository.