The http.ClientRequest.connection is an inbuilt application programming interface of class ClientRequest within the HTTP module which is used to get the reference of underlying client request socket.
Syntax:
const request.connection
Parameters: It does not accept any argument as the parameter.
Return Value: It does not return any value.
Example 1: Filename-index.js
// Node.js program to demonstrate the
// request.connection method
// 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);
// Getting request socket
// by using connection method
const v = req.connection;
// Display the result
console.log("request socket :- " + v)
process.exit(0)
});
Run the index.js file using the following command:
node index.js
Output:
request socket :- null
Example 2: Filename-index.js
// Node.js program to demonstrate the
// request.connection method
// 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',
});
// Getting request socket
// by using connection method
if (req.connection) {
console.log("Requested for Connection")
} else {
console.log("Not Requested for Connection")
}
process.exit(0)
});
Run the index.js file using the following command:
node index.js
Output:
Not Requested for Connection
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_request_connection
