Express app.get() Request Function
The `app.get()` function in Node is designed to route HTTP GET requests to the specified path, associating them with designated callback functions. Its primary purpose is to link middleware to your application, facilitating the handling of GET requests at the specified route.
Syntax:
app.get( path, callback )
Parameters:
- path: It is the path for which the middleware function is being called.
- callback: They can be a middleware function or a series/array of middleware functions.
Steps to create the application:
Step 1: You can install this package by using this command.
npm install express
Step 2: After installing the express module, you can check your express version in the command prompt using the command.
npm version express
Project Structure:
The updated dependencies in package.json file will look like:
"dependencies": {
"express": "^4.18.2",
}
Example 1: Below is the code example of app.get() Function:
javascript
const express = require( 'express' ); const app = express(); const PORT = 3000; app.get( '/' , (req, res) => { res.send( "GET Request Called" ) }) app.listen(PORT, function (err) { if (err) console.log(err); console.log( "Server listening on PORT" , PORT); }); |
Steps to run the program:
node index.js
Console Output:
Server listening on PORT 3000
Browser Output: Now make a GET request to http://localhost:3000/ and you will get the following
We have a complete list of all the important Express Application methods, to check those please go through Express.js Application Complete Reference article
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