Stitch -> React (frontend) + FastAPI (backend)

A high-performance stack pairing MongoDB Stitch’s serverless logic with a React frontend and a FastAPI-driven Python backend.

This architecture leverages MongoDB Stitch (now MongoDB Realm) to handle authentication and real-time data synchronization, reducing boilerplate in the React layer. FastAPI serves as the high-speed middleware, utilizing Python 3.10+ type hints and Pydantic validation to process complex business logic at sub-millisecond speeds. By combining Stitch’s event-driven triggers with FastAPI’s asynchronous endpoints, developers gain a scalable environment capable of handling thousands of concurrent requests with minimal infrastructure overhead.

https://github.com/mongodb/stitch-sdks