LangGraph Interrupt and Resume Workflow - Part 19/22

Description

Learn how LangGraph's interrupt mechanism handles workflow pausing and resumption, with a focus on avoiding duplicate operations in stateful workflows. This tutorial covers idempotency patterns, human-in-the-loop validation, and proper placement of side effects in computational graphs. #LangGraph #Python #WorkflowAutomation #StateManagement #Idempotency #AIWorkflows #CodingTutorial Zen Koan Explanation: The code creates an audit log record *before* the `interrupt()` call, meaning each time execution resumes (e.g., after user approval), a duplicate record is generated—mirroring the koan’s "spectral twins" born prematurely. This premature persistence violates the intended flow, where the log should only be created *after* the approval decision is finalized. Source: https://docs.langchain.com/oss/python/langgraph/interrupts