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Express.js router.route() Function

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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 the express module:

You can visit the link to Install the express module. You can install this package by using this command.

npm install express

After installing the express module, you can check your express version in the command prompt using the command.

npm version express

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

Project Structure:

Example 1: Filename: index.js 

javascript




const express = require('express');
const app = express();
const router = express.Router();
const 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:

Make sure you have installed the express module using the following command:

npm install express

Run the index.js file using the below command:

node index.js

Output:

Console Output:

Server listening on PORT 3000

Browser Output:

Now make a 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 

javascript




const express = require('express');
const app = express();
const router = express.Router();
const 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);
})


Steps to run the program:

Run the index.js file using the below command:

node index.js

Output: Now make GET, POST, and PUT requests 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



Last Updated : 20 Mar, 2023
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