Express.js router.all() Function

09 Jul, 2020
The router.all() function is just like the router.METHOD() methods, except that it matches all HTTP methods (verbs). It is very helpful for mapping global logic for arbitrary matches or specific path prefixes.
Syntax:
router.all(path, [callback, ...] callback)
Parameter: The path parameter is the path of the specified URL and callback is the function passed as parameter.
Return Value: It returns responses.
Installation of express module:
You can visit the link to Install express module. You can install this package by using this command.npm install expressAfter installing the express module, you can check your express version in command prompt using the command.npm version expressAfter 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
You can visit the link to Install express module. You can install this package by using this command.npm install express
npm install express
After installing the express module, you can check your express version in command prompt using the command.npm version express
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
node index.js
Example 1: Filename: index.js
var express = require('express');var app = express();var router = express.Router();var PORT = 3000;  // Setting single route  router.all('/user', function (req, res) {    console.log("User Page 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:
The project structure will look like this:Make sure you have installed express module using the following command:npm install expressRun index.js file using below command:node index.jsOutput:Server listening on PORT 3000
Now make any request to http://localhost:3000/user like POST, PUT, DELETE or any other type of request, it will shown the following outputUser Page Called    
Every type of request made to http://localhost:3000/user will print the same output.
The project structure will look like this:
Make sure you have installed express module using the following command:npm install express
npm install express
Run index.js file using below command:node index.jsOutput:Server listening on PORT 3000

node index.js
Output:
Server listening on PORT 3000

Now make any request to http://localhost:3000/user like POST, PUT, DELETE or any other type of request, it will shown the following outputUser Page Called    
Every type of request made to http://localhost:3000/user will print the same output.
User Page Called    

Every type of request made to http://localhost:3000/user will print the same output.
Example 2: Filename: index.js
var express = require('express');var app = express();var router = express.Router();var PORT = 3000;  // Setting multiple routes  router.all('/user', function (req, res) {    console.log("User Page Called");    res.end();});  router.all('/student', function (req, res) {    console.log("Student Page Called");    res.end();});  router.all('/teacher', function (req, res) {    console.log("Teacher Page 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 request to http://localhost:3000/user, http://localhost:3000/student and http://localhost:3000/teacher it will shown the following output.
User Page Called 
Student Page Called 
Teacher Page Called    

Reference: https://expressjs.com/en/4x/api.html#router.all
Express.js
Node.js
Web Technologies
Writing code in comment?
Please use ide.geeksforgeeks.org,
generate link and share the link here.
How to update Node.js and NPM to next version ?
Installation of Node.js on Linux
Node.js fs.readFileSync() Method
How to install the previous version of node.js and npm ?
Node.js fs.writeFile() Method
Installation of Node.js on Linux
Top 10 Projects For Beginners To Practice HTML and CSS Skills
Difference between var, let and const keywords in JavaScript
How to insert spaces/tabs in text using HTML/CSS?
How to fetch data from an API in ReactJS ?