Node.js http.ServerResponse.getHeader() Method
The httpServerResponse.getHeader() is an inbuilt application programming interface of the class Server Response within http module which is used to get the response header of the particular name.
Syntax:
response.getHeader(name)
Parameters: This method accepts the name of the header as the parameter.
Return Value: This method returns the value of the particular header object.
Example 1: Filename: index.js
Javascript
const http = require( 'http' );
const PORT = process.env.PORT || 3000;
const httpServer = http.createServer(
function (request, response) {
const value = response.getHeaders();
console.log(value)
response.end( "hello world " , 'utf8' , () => {
console.log( "displaying the result..." );
httpServer.close(() => {
console.log( "server is closed" )
})
});
});
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...
[Object: null prototype] {}
displaying the result...
[Object: null prototype] {}
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.
hello world
Example 2: Filename: index.js
Javascript
const http = require( 'http' );
const http2Handlers = (request, response) => {
response.setHeader( 'Content-Type' , 'text/html' );
const value = response.getHeader( 'Content-Type' );
response.end( "header value : "
+ value, 'utf8' , () => {
console.log( "displaying the result..." );
httpServer.close(() => {
console.log( "server is closed" )
})
});
};
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...
[Object: null prototype] {}
displaying the result...
[Object: null prototype] {}
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.
header value : text/html
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_response_getheader_name
Last Updated :
05 Apr, 2023
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