Deploying LangGraph with FastAPI: A Step-by-Step Tutorial
Building asynchronous, high-concurrency microservices around compiled LangGraph state machines with streaming SSE responses.
Learn how to wrap stateful LangGraph workflows inside production-grade FastAPI services with real-time SSE token streaming, graceful cancellations, and Dockerized deployment.
Implemented an event-driven FastAPI runtime leveraging Python asyncio, BackgroundTasks, and Redis Pub/Sub channels to stream Server-Sent Events (SSE) directly from LangGraph node yield events.