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🧱 Architecture Overview

Melify is a modular system designed for extensibility and performance.

📐 Components​

  • Frontend: React + Material UI
  • Backend: NestJS (Node.js), JWT-auth, REST & WebSocket APIs
  • Database: MongoDB (Mongoose ODM)
  • AI Layer: Python workers using LangChain + vector search
  • Infrastructure:
    • Gmail API + Pub/Sub notifications
    • Google Cloud Functions for Gmail webhooks
    • Azure VMs or Kubernetes for hosting

🔁 Email Lifecycle​

  1. OAuth2 login grants Gmail access.
  2. Gmail push notifications trigger a Cloud Function.
  3. Emails are stored and processed in MongoDB.
  4. Summarization/categorization jobs are run by AI workers.
  5. Frontend receives real-time updates via WebSocket.