Express.js | app.delete() Function

Last Updated : 18 Jun, 2020

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

Syntax:

app.delete(path, callback)

Parameters:

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

Installation of express module:

You can visit the link to Install express module. You can install this package by using this command.
```
npm install express
```
After installing express module, you can check your express version in 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
```

Filename: index.js

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:

The project structure will look like this:
Make sure you have installed express module using following command:
```
npm install express
```
Run index.js file using below command:
```
node index.js
```
Output:
```
Server listening on PORT 3000
```
Now make DELETE request to http://localhost:3000/ and you will get the following output:
```
DELETE Request Called
```

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