Your First LangGraph Agent: Create a Simple Greeting Bot

Description

In this beginner-friendly tutorial, you’ll learn how to build your first agent using LangGraph — a simple greeting bot that asks for a name and replies “Hello, nice to meet you name”. We’ll walk through the fundamentals of state graphs, show how to add a single node, configure start & finish points, and invoke the graph — all in under 10 minutes. ▶️ What you’ll learn: What is a StateGraph in LangGraph and why it matters for building agents How to add a node, define its logic (one parameter: name) How to set up start and finish nodes so the graph runs smoothly How to invoke the graph with an input (your name) and get the greeting output Best practices for building lightweight, easy-to-understand agents 🛠️ Why use LangGraph? LangGraph is a powerful framework built on top of LangChain for creating stateful, graph-based AI agents. It helps you design workflows where nodes, edges, and state control the logic, making it ideal even for simple bots like this greeting agent. 👉 Whether you’re a complete beginner or just want to quickly prototype an agent, this tutorial gives you a clear, practical example to get started in minutes. 💬 Drop a comment if you’ve built your own greeting agent or want to expand this into a more complex workflow (multiple nodes, parameters, branching, etc.). Don’t forget to like 👍 and subscribe for more agent-building tutorials! #LangGraph #AIAgent #GreetingBot #LangChain #StateGraph #langGraphAgent #langgraphTutorial #langGraphPlaylist