MOCKSTACKS
EN
Questions And Answers

More Tutorials









NodeJS Web Apps With Express

Getting Started


You will first need to create a directory, access it in your shell and install Express using npm by running npm install express --save

Create a file and name it app.js and add the following code which creates a new Express server and adds one endpoint to it (/ping) with the app.get method:

const express = require('express');
const app = express();
app.get('/ping', (request, response) => {
 response.send('pong');
});
app.listen(8080, 'localhost');

To run your script use the following command in your shell:

> node app.js

Your application will accept connections on localhost port 8080. If the hostname argument to app.listen is omitted, then server will accept connections on the machine's IP address as well as localhost. If port value is 0, the operating system will assign an available port.

Once your script is running, you can test it in a shell to confirm that you get the expected response, "pong", from the server:

> curl http://localhost:8080/ping
pong



Conclusion

In this page (written and validated by ) you learned about NodeJS Web Apps With Express . What's Next? If you are interested in completing NodeJS tutorial, your next topic will be learning about: NodeJS Filesystem I O.



Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue: mockstacks@gmail.com.


Share On:


Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using Mockstacks.com, you agree to have read and accepted our terms of use, cookies and privacy policy.