Deploying LangGraph Agents: LangServe, Docker, LangGraph Platform, and Production Observability

TLDR: Swap InMemorySaver → PostgresSaver, add LangServe + Docker, trace with LangSmith. 📖 The Demo-to-Production Gap: Why Notebook Agents Fail at Scale Your LangGraph agent works perfectly in the demo. You deploy it to a single FastAPI instance. ...