Build a JavaScript AI Agent With LangGraph.js and MongoDB
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✅ Written tutorial → https://mdb.link/article-qXDrWKVSx1w
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As a web developer, the idea of integrating AI into your applications might seem overwhelming. But don't worry—I've been there! In this tutorial, I'll walk you through building an AI agent using LangGraph.js and MongoDB, making it way simpler than it sounds.
We'll cover the following:
⭐ Understanding what AI agents are and how they work.
⭐ Using LangGraph.js to create agents that can remember past conversations and use "tools" to gather more information.
⭐ Integrating MongoDB for storing conversation history and data retrieval, specifically leveraging MongoDB Atlas Vector Search for context-aware responses.
By the end of this video, you'll have built an AI agent capable of managing HR-related queries, looking up employee info from a database, and continuing conversations across multiple sessions. It's like creating your own J.A.R.V.I.S., but for practical, real-world applications!
What You'll Learn:
⭐ How to set up LangGraph.js for AI workflows.
⭐ How to integrate MongoDB Atlas to store and retrieve data.
⭐ How to build an AI agent that can manage conversations, look up data, and persist state across sessions.
Prerequisites:
✔︎ Node.js and npm
✔︎ Free MongoDB Atlas account
✔︎ OpenAI and Anthropic API keys
Clone the project repo and follow along as we create this powerful AI tool. Let’s get started!
🔗 Project Repo: https://github.com/mongodb-developer/LangGraph.js-MongoDB-Example
⏱️ Timestamps ⏱️
00:00 - Intro
02:50 - Setting up the project
04:29 - Configure MongoDB
05:36 - Seeding the database
12:45 - MongoDB Atlas Vector Search Index
13:50 - Building the AI agent with LangGraph.js
22:47 - Creating the Express.js server
25:44 - Testing the AI agent
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