WebSocket + Node.js + Python 3

Example of a simple application using WebSocket and Node.js to create a Python 3 process to calculate the factorial of a number and send the result to client.

Ready for deployment to Heroku.

Client

Simple HTML page with the libraries:

1. jQuery;
2. Bootsrap;
3. ReconnectingWebSocket: keep the connection alive if eventually is dropped.

Server

1. Node.js;
2. Express framework;
3. Python 3: used to do the dirty work (Python process invoked by Node child_process module);
4. ws: a Node.js WebSocket library.

Usage

node app.js

and navigate to:

localhost:3746