Node.js http.ServerResponse.connection Method

The httpServerResponse.connection is an inbuilt application programming interface of class Server Response within http module which is used to get the response socket of this HTTP connection.

Syntax:

response.connection

Parameters: This method does not accept any argument as a parameter.

Return Value: This method returns the response socket of this HTTP connection.

Example 1: Filename: index.js

Javascript

// Node.js program to demonstrate the
// response.connection APi

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

// Setting up PORT
const PORT = process.env.PORT || 3000;

// Creating http Server
var httpServer = http.createServer(
    function (request, response) {

        // Getting connection
        // by using response.connection Api
        const value = response.connection;

        // Display result
        response.end("port address : "
            + value.address().port, 'utf8', () => {
                console.log("displaying the result...");

                // Closing the server
                httpServer.close(() => {
                    console.log("server is closed")
                })
            });
    });

// Listening to http Server
httpServer.listen(PORT, () => {
    console.log("Server is running at port 3000...");
});

Steps to run:

node index.js

Console Output:

Server is running at port 3000...
displaying the result...
displaying the result...
server is closed
server is closed

Browser Output: Paste the localhost address http://localhost:3000/ in the search bar of the browser.

Example 2: Filename: index.js

Javascript

// Node.js program to demonstrate the
// response.connection APi

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

// Request and response handler
const http2Handlers = (request, response) => {

    // Getting connection
    // by using response.connection Api
    const value = response.connection;

    // Display result
    response.end("family : "
        + value.address().family, 'utf8', () => {
            console.log("displaying the result...");

            // Closing the server
            httpServer.close(() => {
                console.log("server is closed")
            })
        });
};

// Creating http Server and listing
// on the port 3000
const httpServer = http.createServer(
    http2Handlers).listen(3000, () => {
        console.log("Server is running at port 3000...");
    });

Steps to run:

node index.js

Console Output:

Server is running at port 3000...
displaying the result...
displaying the result...
server is closed
server is closed

Browser Output: Paste the localhost address http://localhost:3000/ in the search bar of the browser.

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