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Express.js | res.location() Function

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  • Last Updated : 18 Jun, 2020
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The res.location() function is used to set the response Location HTTP header to the path parameter which is being specified. Basically is it used to set the response header. It doesn’t end the response, after using it you can write a response body if you want to write.

Syntax:

res.location( path )

Parameter:

  • path: It refers to the URL which is being specified in the Referer header of the request.

Installation of express module:

  1. You can visit the link to Install express module. You can install this package by using this command.
    npm install express
  2. After installing the express module, you can check your express version in command prompt using the command.
    npm version express
  3. After that, you can just create a folder and add a file for example, index.js. To run this file you need to run the following command.
    node index.js

Filename: index.js




var express = require('express');
var app = express();
var PORT = 3000;
  
app.get('/', function(req, res){
    res.location('http://demo.com');
    console.log(res.get('location')); // http://demo.com
});
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});


Steps to run the program:

  1. The project structure will look like this:
  2. Make sure you have installed express module using the following command:
    npm install express
  3. Run index.js file using below command:
    node index.js

    Output:

    Server listening on PORT 3000
    
  4. Now open browser and go to http://localhost:3000/, now check your console and you will see the following output:

    Server listening on PORT 3000
    http://demo.com
    
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