Node.js http.ClientRequest.end() API

The http.ClientRequest.end() is  an inbuilt application programming interface of class ClientRequest within http module which is used to finish sending the request. If any parts of the body are unsent.

Syntax:

const request.end([data[, encoding]][, callback])

Parameters: This method takes the data as an input.

Return Value : This method returns nothing but a callback function.

Example 1:

Javascript

// Node.js program to demonstrate the
// request.end() APi

// Importing http module
const http = require('http');

// Create an HTTP server
http.createServer((req, res) => {}).listen(3000, '127.0.0.1', () => {

  // getting client request
  const req = http.request({
    port: 3000,
    host: '127.0.0.1',
  });

  req.setHeader('content-type', 'text/html');

  // finishing sending the request
  req.end()

  // getting header
  // by using getHeader() api
  console.log("header :- " + req.getHeader('content-type'))

  process.exit(0)
});

Output:

Example 2:

Javascript

// Node.js program to demonstrate the
// request.end() APi

// Importing http module
const http = require('http');

// Create an HTTP server
const server = http.createServer((req, res) => {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.end('okay');
});

// Now that server is running
server.listen(3000, '127.0.0.1', () => {

  // make a request
  const options = {
    port: 3000,
    host: '127.0.0.1',
    headers: {
      'Connection': 'Upgrade',
      'Upgrade': 'websocket'
    }
  };

  // getting client request
  const req = http.request(options);

  req.setHeader('Cookie', ['type=ninja', 'language=javascript']);

  // getting header
  // by using getHeader() api
  const v = req.getHeader('Cookie');


  // finishing sending the request
  req.end()


  // display the result
  console.log("header :- " + v)

  process.exit(0)
});

Output:

Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_request_end_data_encoding_callback