Topic
LangChain.js for Node & TypeScript
5 posts on langchain.js for node & typescript — part of framework tutorials on the n4n AI blog.
LangChain.js tool calling with GPT-4o via n4n.ai
Hands-on tutorial for LangChain.js tool calling with GPT-4o via n4n.ai: wire OpenAI-compatible models to LangChain tools in Node with working TypeScript code.
LangChain.js quickstart: your first chat chain in Node
A hands-on langchain.js quickstart node chat chain tutorial: build a runnable Node.js chat chain with LangChain.js, from setup to streaming responses.
Getting started with LangChain.js and TypeScript
A practical, opinionated guide to langchain.js typescript getting started: project setup, first chains, streaming, pitfalls, and provider fallback.
Connect LangChain.js to n4n.ai with the OpenAI package
Step-by-step guide to connecting LangChain.js to n4n.ai using the OpenAI package, with runnable Node.js code for chat, streaming, and model routing.
Build a Next.js chatbot with LangChain.js
Step-by-step guide to building a langchain.js nextjs chatbot with streaming responses, tool calling, and a production-ready API route in TypeScript.
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