create a http server with a custom route in typescript

To create a custom route in TypeScript with HTTP, we'll need to use a framework like Express. Here's an example of how to create a basic HTTP server with a custom route in TypeScript using Express:

index.ts
import express from 'express';

const app = express();

// Custom route
app.get('/hello', (req, res) => {
  res.send('Hello, world!');
});

// Start server
const port = 3000;
app.listen(port, () => {
  console.log(`Server listening at http://localhost:${port}`);
});
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First, we import the express module and create a new express application. Then, we define our custom route with the app.get method, which takes the route path ('/hello') and a callback function that sends a response (res.send('Hello, world!')). Finally, we start the server on port 3000 using app.listen.

Note that if you're using TypeScript, you'll need to make sure you have the @types/express package installed and included in your tsconfig.json file so that TypeScript can correctly type-check your code.