James' Growth Diary

Apr 25, 2026 · Artificial Intelligence

LangChain Memory Best Practices: Avoid Common Pitfalls and Choose the Right Module

This article dissects the most frequent LangChain Memory pitfalls—missing placeholders, wrong memory type, shared instances, and multi‑process issues—provides correct code patterns, compares the five built‑in memory classes, introduces the new RunnableWithMessageHistory approach, and offers a production‑ready checklist.