Code for a browser Request Cookies

Here's an example code for sending and receiving request cookies using JavaScript:

Sending a request cookie:

To send a request cookie, you simply include it in the headers of the HTTP request. Here's an example using the fetch API:

fetch('/api/data', {
  headers: {
    'Cookie': 'name=value'
  }
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

This code sends a GET request to /api/data with a request cookie named name and value value. The fetch API includes the cookie in the headers of the request, using the Cookie header.

Receiving a request cookie:

To receive a request cookie, you can access it in the headers of the HTTP response. Here's an example using the express framework in Node.js:

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

app.get('/api/data', (req, res) => {
  const myCookie = req.headers.cookie.split(';').find(cookie => cookie.trim().startsWith('name='));
  if (myCookie) {
    const cookieValue = myCookie.split('=')[1];
    res.send(`Received cookie value: ${cookieValue}`);
  } else {
    res.send('No cookie found');
  }
});

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

This code defines an HTTP server that listens for GET requests to /api/data. When a request is received, the server checks the headers of the request for a cookie named name. If the cookie is found, the server extracts its value and sends a response containing the value. Otherwise, the server sends a response indicating that no cookie was found.

Note that request cookies are set by the client in the HTTP request headers, and can be retrieved by the server as shown above. The specific method for setting request cookies may vary depending on the client-side technology being used.