use nodejs set cookie to 1 and send a post request

Here is an example code snippet to set a cookie to 1 using Node.js and send a POST request:

const http = require('http');

const server = http.createServer((req, res) => {
  // Set cookie to 1
  res.setHeader('Set-Cookie', 'myCookie=1');
  
  // Send POST request
  if (req.method === 'POST') {
    let body = '';
    req.on('data', chunk => {
      body += chunk.toString();
    });
    req.on('end', () => {
      console.log(`POST request received with body: ${body}`);
      res.end('POST request received');
    });
  } else {
    res.end('Hello world!');
  }
});

server.listen(3000, () => {
  console.log('Server is listening on port 3000');
});

This code creates a simple HTTP server that sets a cookie to 1 and sends a POST request if the incoming request method is POST. When the server receives a POST request, it logs the request body and sends a response. If the incoming request method is not POST, the server sends a "Hello world!" response.

To test this code, you can use a tool like Postman to send a POST request to http://localhost:3000. The response should be "POST request received". You can also check the cookies in your browser's developer tools to verify that the cookie "myCookie" is set to 1.