Skip to content
Related Articles

Related Articles

Node | URL.protocol API
  • Last Updated : 01 Nov, 2019
GeeksforGeeks - Summer Carnival Banner

The url.protocol is an inbuilt application programming interface of class URL within url module which is used to get and set the protocol portion of the URL. When a URL is parsed using one of the special protocols, the url.protocol property may be changed to another special protocol but cannot be changed to a non-special protocol, and vice versa.

Syntax:

const url.protocol

Return value: It returns the protocol portion of the URL.

Below examples illustrate the use of url.protocol method in Node.js:

Example 1:






// Node program to demonstrate the 
// url.protocol API as Setter 
    
// Importing the module 'url'
const http = require('url');
    
// Creating and initializing myURL
const myURL = new URL('https://geeksforgeeks.org:80/foo#ram');
    
// Display href value of myURL before change
console.log("Before Change");
console.log(myURL.href);
    
// Assinging protocol portion
// using protocol
console.log();
myURL.protocol = 'http';
    
// Display href value of myURL after change
console.log("After Change");
console.log(myURL.href);

Output:

Before Change
https://geeksforgeeks.org:80/foo#ram

After Change
http://geeksforgeeks.org/foo#ram

Example 2: This example changes the special protocol to a non-special protocol.




// Node program to demonstrate the 
// url.protocol API as Setter 
    
// Importing the module 'url'
const http = require('url');
    
// Creating and initializing myURL
const myURL = new URL('https://geeksforgeeks.org:80/foo#ram');
    
// Display href value of myURL before change
console.log("Before Change");
console.log(myURL.href);
    
// Assinging protocol portion
// with non special protocol 
// using protocol
console.log();
myURL.protocol = 'xyz';
    
// Display href value of myURL after change
console.log("After Change");
console.log(myURL.href);

Output:

Before Change
https://geeksforgeeks.org:80/foo#ram

After Change
https://geeksforgeeks.org:80/foo#ram

Example 3:




// Node program to demonstrate the 
// url.protocol API as Getter 
   
// Importing the module 'url'
const http = require('url');
   
// Creating and initializing myURL
const myURL = new URL('https://geeksforgeeks.org:80/foo#ram');
   
// Getting the protocol portion
// using protocol
const protocol = myURL.protocol;
   
// Display hash value 
console.log("Protocol of current url is : " + protocol);

Output:

Protocol of current url is : https:

Note: The above program will compile and run by using the node myapp.js command.

Reference: https://nodejs.org/api/url.html#url_url_protocol

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up
Recommended Articles
Page :