Node.js http.IncomingMessage.headers Method
Last Updated :
05 Apr, 2023
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The http.IncomingMessage.headers is an inbuilt application programming interface of class IncomingMessage within the HTTP module which is used to get all the request/response headers objects.
Syntax:
const message.headers
Parameters: This method does not accept any argument as a parameter.
Return Value: This method returns all the request/response headers objects.
Example 1:
Filename: index.js
Javascript
// Node.js program to demonstrate the// request.headers method// Importing http moduleconst http = require('http');// Setting up PORTconst PORT = process.env.PORT || 3000;// Creating http Serverconst httpServer = http.createServer( function (request, response) { // Getting request/response header // by using request.headers method const value = request.headers; // Display header console.log(value.connection) // Display result response.end("hello world", 'utf8', () => { console.log("displaying the result..."); httpServer.close(() => { console.log("server is closed") }) }); });// Listening to http ServerhttpServer.listen(PORT, () => { console.log("Server is running at port 3000...");}); |
Run the index.js file using the following command.
node index.js
Output:
Output: In-Console Server is running at port 3000... keep-alive displaying the result...
Now go to http://localhost:3000/ in the browser, and you will see the following output:
hello world
Example 2:
Filename: index.js
Javascript
// Node.js program to demonstrate the// request.headers Method// Importing http moduleconst http = require('http');// Request and response handlerconst http2Handlers = (request, response) => { // Getting request/response header // by using request.headers method const value = request.headers; // Display header console.log(value.host) // Display result response.end("hello world!!", 'utf8', () => { console.log("displaying the result..."); httpServer.close(() => { console.log("server is closed") }) });};// Creating http Serverconst 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... localhost:3000 displaying the result...
Now go to http://localhost:3000/ in the browser, and you will see the following output:
hello world!!
