Building AI Applications: Project Foundation

Part 2: Project Foundation

Recap: Part 1 explained why Node.js, LangChain, and Azure OpenAI work perfectly together for AI applications.

Today we create the foundation for our customer support assistant. Think of this like preparing your workshop before building something complex.

Setup Steps

Create your project structure:

mkdir ai-customer-support
cd ai-customer-support
npm init -y
npm install express dotenv

Create src/app.js:

const express = require('express');
const app = express();

app.get('/', (req, res) => {
  res.json({ message: 'AI Support API Ready' });
});

app.listen(3000, () => {
  console.log('Server running on port 3000');
});

Test with node src/app.js and visit localhost:3000.

Next: Part 3

We’ll add Azure OpenAI integration and make our first intelligent response.