Niyojaka – AI-Enabled Gmail Replier

Live Link: https://gmailbot-dun.vercel.app/

Niyojaka is an AI-powered Gmail automation agent that reads your inbox, understands the intent of each email, and drafts or sends context-aware replies automatically.
It’s built to save hours of manual effort while maintaining a personalized communication style.

---

🔧 Tech Stack

• Next.js
• Node.js
• Express.js
• LangChain
• Gmail API
• JWT Authentication

---

🚀 Features

• Reads and analyzes Gmail messages securely using OAuth2
• Generates intelligent, context-aware replies with LangChain
• Maintains user tone and intent consistency across conversations
• Provides option for users to review or auto-send replies
• Secure authentication and access management using JWT
• Real-time updates with a fast, responsive Next.js frontend

---

🧩 Architecture Overview

1. Frontend (Next.js) – Handles UI, authentication, and real-time reply management
2. Backend (Node.js + Express.js) – Manages API routes, Gmail API requests, and LangChain model inference
3. LangChain Integration – Extracts message context and generates draft replies using prompt chains
4. Database Layer (MongoDB or JSON store) – Stores user preferences, history, and token data

---

🧠 How It Works

1. User authenticates via Google OAuth2
2. System fetches unread Gmail messages using Gmail API
3. LangChain model analyzes email content and generates a suitable reply
4. User can review, edit, or auto-send the response directly
5. Updates are reflected in real-time on the dashboard

---

📦 Installation

1. Clone the repository

   git clone https://github.com/yourusername/niyojaka.git
   cd niyojaka

2. Install dependencies

   npm install

3. Create a .env file and add:

   GOOGLE_CLIENT_ID=your_google_client_id
   GOOGLE_CLIENT_SECRET=your_google_client_secret
   JWT_SECRET=your_jwt_secret
   LANGCHAIN_API_KEY=your_langchain_key
   

4. Run the development server

   npm run dev

5. Visit http://localhost:3000

---

📈 Impact

• Automates over 80% of repetitive email responses
• Reduces average inbox management time by 2–3 hours daily
• Maintains tone consistency and improves response turnaround

---

🤝 Contribution

Pull requests and ideas are always welcome.
For major changes, please open an issue first to discuss what you would like to improve.