Node.js http.server.maxHeadersCount Property
Last Updated :
05 Apr, 2023
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The http.server.maxHeadersCount is an inbuilt application programming interface of class Server within the HTTP module which is used to get the maximum number of incoming headers to count.
Syntax:
const server.maxHeadersCount
Parameters: This property does not accept any argument as a parameter.
Return Value: It does not return any value.
Example 1: Filename-index.js
// Node.js program to demonstrate the
// server.maxHeadersCount property
// 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
// by using listen() method
httpServer.listen(PORT, () => {
console.log("Server is running at port 3000...");
});
// Getting max header count
// by using maxHeadersCount method
const v = httpServer.maxHeadersCount
// Display the result
console.log('maximum header count :-' + v)
Run the index.js file using the following command:
node index.js
Output:
maximum header count :-null 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.maxHeadersCount 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")
})
});
};
// Listening to http Server
// by using listen() method
const httpServer = http.createServer(
http2Handlers).listen(3000, () => {
console.log("Server is running at port 3000...");
});
// Getting max header count
// by using maxHeadersCount method
const v = httpServer.maxHeadersCount
if (v || v > 1) {
console.log("maximum header count is greater than 1")
} else {
console.log("maximum header count is less than 1")
}
Run the index.js file using the following command:
node index.js
Output:
maximum header count is less than 1 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
