James' Growth Diary

Apr 25, 2026 · Artificial Intelligence

How to Use LangGraph Conditional Edge for Dynamic Branching Decisions

This article explains the concept of Conditional Edge in LangGraph, shows how to add conditional edges with three parameters, demonstrates rule‑based, multi‑branch, and loop routing patterns, compares rule‑based versus LLM‑based routing, provides a complete customer‑service agent example, and lists common pitfalls and best‑practice checklists.