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Express.js router.route() Function

  • Last Updated : 09 Jul, 2020

The router.route() function returns an instance of a single route that you can then use to handle HTTP verbs with optional middleware. You can also use the router.route() function to avoid duplicate route naming as well as typing errors.

Syntax:

router.route( path )

Parameter: The path parameter holds the path of the specified URL.

Return Value: It returns responses.

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

Example 1: Filename: index.js




var express = require('express');
var app = express();
var router = express.Router();
var PORT = 3000;
    
// Single routing
router.route('/user')
.get(function (req, res, next) {
    console.log("GET request called");
    res.end();
});
  
app.use(router);
  
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 make GET request to http://localhost:3000/, you can see the following output on your screen:
    Server listening on PORT 3000
    GET request called
    

Example 2: Filename: index.js




var express = require('express');
var app = express();
var router = express.Router();
var PORT = 3000;
    
// Multiple routing
router.route('/user')
.get(function (req, res, next) {
    console.log("GET request called");
    res.end();
})
.post(function (req, res, next) {
    console.log("POST request called");
    res.end();
})
.put(function (req, res, next) {
    console.log("PUT request called");
    res.end();
});
  
app.use(router);
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

Run index.js file using below command:

node index.js

Now make GET, POST, PUT request to http://localhost:3000/, you can see the following output on your screen:

Server listening on PORT 3000
GET request called
POST request called
PUT request called

Reference: https://expressjs.com/en/4x/api.html#router.route




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