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Node.js http.IncomingMessage.rawHeaders Method

Node.js http.IncomingMessage.rawTrailers Method

Node.js http.IncomingMessage.headers Method

The http.IncomingMessage.rawHeaders is an inbuilt application programming interface of class Incoming Message within http module which is used to get the raw request/response headers to list exactly as they were received.

Syntax:

 request.rawHeaders

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

Return Value: This method returns the raw request/response headers list exactly as they were received.

Request List:

Example 1: Filename: index.js

Javascript




// Node.js program to demonstrate the
// IncomingMessage.rawHeaders APi
 
// 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 rawHeaders
        // by using request.rawHeaders Api
        const value = request.rawHeaders;
 
        // Display result
        response.end("rawHeaders : " + value[0], 'utf8', () => {
            console.log("displaying the result...");
 
            //Closing the server
            httpServer.close(() => {
                console.log("server is closed")
            })
        });
    });
 
// Listening to http Server on local port
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.

													
													
												

												
												

													
													
rawHeaders : Host

													
													
												

												
												

													
													
Example 2: Filename: index.js

													
													
												

												
												

													
													




Javascript















                                    




                                    

                                    




                                    




                                    

                                    

                                    
                                




















// Node.js program to demonstrate the


// IncomingMessage.rawHeaders APi


 


// Importing http module


const http = require('http');


 


// Request and response handler


const http2Handlers = (request, response) => {


 


    // Getting rawHeaders


    // by using request.rawHeaders Api


    const value = request.rawHeaders;


 


    // Display result


    response.end("rawHeaders : " + value[2], 'utf8', () => {


        console.log("displaying the result...");


 


        //Closing the Server


        httpServer.close(() => {


            console.log("server is closed")


        })


    });


};


 


// Creating http Server and execute the server


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.

													
													
												

												
												

													
													
rawHeaders : Connection

													
													
												

												
												

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

													
													
												

												
												

													
													

													
													
												

												
												

													
													

													
													
												

												
												

													
													

													
													
												

												
													
											

											
										

									

									

										
										
Tags:

										
										#Node.js-HTTP-Module
										
										#Node.js-Methods
										
										#Node.js
										
										#Web Technologies
										
										

									

									

										

											
											
												
												Node.js http.IncomingMessage.rawTrailers Method
											
											
										

										

											
											
												Node.js http.IncomingMessage.headers Method