Node.js http.server.close() Method
The http.server.close() is an inbuilt application programming interface of class Server within the HTTP module which is used to stop the server from accepting new connections.
Syntax:
const server.close([callback])
Parameters: This method accepts only one optional callback function argument as a parameter.
Return Value: This method returns nothing but a callback function.
Example 1: Filename-index.js
// Node.js program to demonstrate the
// server.close() method
// Importing http module
const http = require('http');
// Setting up PORT
const PORT = process.env.PORT || 3000;
// Creating http Server
const httpServer = http.createServer(
function (request, response) {
// Getting the reference of the
// underlying socket object
// by using socket method
const value = response.socket;
// Display result by using end() method
response.end("socket buffersize : "
+ value.bufferSize, 'utf8', () => {
console.log("displaying the result...");
// Closing server
// by using close() method
httpServer.close(() => {
console.log("server is closed")
})
});
});
// Listening to http Server
httpServer.listen(PORT, () => {
console.log("Server is running at port 3000...");
});
Run the index.js file using the following command:
node index.js
Output:
Server is running at port 3000... displaying the result... server is closed
Now run http://localhost:3000/ in the browser and you will see the following output on the screen:
socket buffersize : 0
Example 2: Filename-index.js
// Node.js program to demonstrate the
// server.close() method
// Importing http module
const http = require('http');
// Request and response handler
const http2Handlers = (request, response) => {
// Getting the reference of the
// underlying socket object
// by using socket method
const value = response.socket;
// Display result by using end() method
response.end("socket local address : "
+ value.localAddress, 'utf8', () => {
console.log("displaying the result...");
// Closing server
// by using close() method
httpServer.close(() => {
console.log("server is closed")
})
});
};
// Creating http Server
const httpServer = http.createServer(
http2Handlers).listen(3000, () => {
console.log("Server is running at port 3000...");
});
Run the index.js file using the following command:
node index.js
Output:
Server is running at port 3000... displaying the result... server is closed
Now run http://localhost:3000/ in the browser and you will see the following output on the screen:
socket local address : ::1
