Express.js | app.delete() Function

The app.delete() function is used to route the HTTP DELETE requests to the path which is specified as parameter with the callback functions being passed as parameter.
Syntax:

app.delete(path, callback)

Parameters:

1. path: It is the path for which the middleware function is being called.
2. callback: It is a middleware function or a series/array of middleware functions. 
   

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

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

npm version express

1. 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

Filename: index.js

javascript

var express = require('express');
var app = express();
var PORT = 3000;

app.delete('/', (req, res) => {
  res.send("DELETE Request Called")
})

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: 
   

1. Make sure you have installed express module using following command: 
   

npm install express

1. Run index.js file using below command: 
   

node index.js

1. Output:
   

Server listening on PORT 3000

2. Now make DELETE request to http://localhost:3000/ and you will get the following output: 
   

DELETE Request Called

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