This is the React comment box example from the React tutorial.

To use

There are several simple server implementations included. They all serve static files from public/ and handle requests to /api/comments to fetch or add data. Start a server with one of the following:

Client-side dependencies

Node

npm install
node server.js

Python

pip install -r requirements.txt
python server.py

Ruby

PHP

Go

Perl

cpan Mojolicious
perl server.pl

And visit http://localhost:3000/. Try opening multiple tabs!

Changing the port

You can change the port number by setting the $PORT environment variable before invoking any of the scripts above, e.g.,