create a http server and read the request body as multipart form data in typescript

Below is an example of how to create an HTTP server in TypeScript and read the request body as multipart form data:

index.ts
import * as http from 'http';
import * as Busboy from 'busboy';

const server = http.createServer((req, res) => {
  if (req.method === 'POST') {
    const busboy = new Busboy({ headers: req.headers });

    busboy.on('field', (fieldname, val) => {
      console.log(`Field ${fieldname}: ${val}`);
    });

    busboy.on('file', (fieldname, file, filename) => {
      console.log(`File ${fieldname} uploaded as ${filename}`);
      file.on('data', (data) => {
        console.log(`File ${filename} got ${data.length} bytes`);
      });
      file.on('end', () => {
        console.log(`File ${filename} finished`);
      });
    });

    busboy.on('finish', () => {
      res.writeHead(200, { 'Connection': 'close' });
      res.end('Finished');
    });

    req.pipe(busboy);
  } else {
    res.writeHead(404);
    res.end();
  }
});

server.listen(8080, () => {
  console.log('Server listening on port 8080');
});
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In this example, we use the http module to create an HTTP server and the Busboy library to parse the multipart form data in the request body.

We check if the request method is POST and create a new instance of Busboy passing the request headers. We then listen for the various events emitted by Busboy. 'field' and 'file' events are emitted for each field and file in the request respectively.

We log some information about each field and file and also read the file contents if needed. When all the fields and files have been processed, the 'finish' event is emitted, and we send a response to the client indicating that the request was successful.

Finally, we call req.pipe(busboy) to pipe the request stream to Busboy and start the parsing process.

This example can be extended to handle other types of request data and response types based on the needs of your application.