LangGraph Interrupt and Resume Workflow - Part 10/22

Description

Learn how to implement interrupt-driven workflows in LangGraph with human-in-the-loop validation. This tutorial covers state persistence using SQLite checkpointing, the interrupt mechanism for pausing execution, and resuming workflows with external approval. Explore how to build secure, durable workflows that require human oversight for sensitive operations. #LangGraph #Python #AI #WorkflowAutomation #StateManagement #InterruptHandling #HumanInTheLoop Zen Koan Explanation: The code uses `interrupt()` to pause execution and wait for external approval before sending an email, with the graph state saved via `SqliteSaver` checkpointing. The interrupt's payload disappears into the void (awaiting user input), while the checkpoint persists—like a barnacle clinging to the thread_id, preserving the workflow's state until resumed. Source: https://docs.langchain.com/oss/python/langgraph/interrupts