Skip to content
Related Articles

Related Articles

Special Schemes of Node.js URL.protocol API

Improve Article
Save Article
  • Last Updated : 14 Oct, 2021
Improve Article
Save Article

The url.protocol is an inbuilt application programming interface of class URL within URL module which is used to get and set the protocol scheme of the URL.

Syntax: 

const url.protocol

Return value: It get and set protocol scheme of the URL

Example 1: This example changes the special protocols to hypothetical protocols like http->https. 

Javascript




// Node program to demonstrate the  
// url.protocol API as Setter  
// Changing of protocols to special
// protocols like http->https
      
// Importing the module 'url' 
const http = require('url'); 
      
// Creating and initializing myURL 
const myURL = new URL('http://gfg.org/foo'); 
      
// Display href value of myURL before change 
console.log("Before Change"); 
  
console.log(myURL.href); 
      
// Assigning protocol portion 
// using protocol 
console.log(); 
myURL.protocol = 'https'
      
// Display href value of myURL after change 
console.log("After Change"); 
console.log(myURL.href); 


Output: 

Before Change
http://gfg.org/foo

After Change
https://gfg.org/foo

Example 2: This example try changes the non-special protocol to a special protocol like smtp->http but it will not change.

Javascript




// Node program to demonstrate the  
// url.protocol API as Setter  
// Changing the protocols to special 
// protocols like smtp->http
       
// Importing the module 'url' 
const http = require('url'); 
       
// Creating and initializing myURL 
const myURL = new URL('smtp://gfg.org/foo'); 
       
// Display href value of myURL before change 
console.log("Before Change"); 
console.log(myURL.href); 
       
// Assigning 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
smtp://gfg.org/foo

After Change
smtp://gfg.org/foo

Example 3: This example try to change the special protocols to hypothetical protocols like ftp->fish but it will not change.

Javascript




// Node program to demonstrate the  
// url.protocol API as Setter  
// Changing of protocols to special
// protocols like ftp->fish
       
// Importing the module 'url' 
const http = require('url'); 
       
// Creating and initializing myURL 
const myURL = new URL('ftp://gfg.org/foo'); 
       
// Display href value of myURL before change 
console.log("Before Change"); 
console.log(myURL.href); 
       
// Assigning protocol portion 
// using protocol 
console.log(); 
myURL.protocol = 'fish'
       
// Display href value of myURL after change 
console.log("After Change"); 
console.log(myURL.href); 


Output: 

Before Change
ftp://gfg.org/foo

After Change
ftp://gfg.org/foo

Example 4: This example try to change from non-special protocols to hypothetical protocols like ssh->fish.

Javascript




// Node program to demonstrate the  
// url.protocol API as Setter  
// Changing the protocols to special
// protocols like ssh->fish
       
// Importing the module 'url' 
const http = require('url'); 
       
// Creating and initializing myURL 
const myURL = new URL('ssh://gfg.org/foo'); 
       
// Display href value of myURL before change 
console.log("Before Change"); 
console.log(myURL.href); 
       
// Assigning protocol portion 
// using protocol 
console.log(); 
myURL.protocol = 'fish'
       
// Display href value of myURL after change 
console.log("After Change"); 
console.log(myURL.href); 


Output: 

Before Change
ssh://gfg.org/foo

After Change
fish://gfg.org/foo

Example 5: It can be used as a getter.

Javascript




// Node program to demonstrate the 
// url.pathname API as Getter 
   
// Importing the module 'url' 
const http = require('url'); 
   
// Creating and initializing myURL 
const myURL = new URL('https://gfg.org/foo'); 
   
// Getting the path portion 
// using pathname 
const protocol = myURL.protocol; 
   
// Display path value 
console.log(protocol); 


Output: 

https:

Reference: https://developer.mozilla.org/en-US/docs/Web/API/URL/protocol
 


My Personal Notes arrow_drop_up
Related Articles

Start Your Coding Journey Now!