Connecting My LangGraph AI Agent to Postgres

A stateful AI agent built with LangGraph for handling a customer service booking process can be connected to a Postgres database for persistent storage. This allows the agent, which uses a Streamlit UI, to remember conversation states and booking details even after the application restarts. The tutorial provides detailed instructions on how to test this database connection, either locally using a Docker container for a reproducible environment or with a cloud-hosted Postgres service. By using a durable backend, the agent can check existing appointments in the database to avoid offering already booked time slots.