This is my first nodejs app created with express.js 4 and 1.
Download it on GitHub

A demo is to:

The app permit to draw on a map in real time with other people in a specified “room”, so only who know the name of the room can access.


You can choose to show/hide the write on the map of the other member, with a “layer system” applied on the canvas.
The canvas is managed with the library jcanvas is very useful.

The room are managed with, the client connected to are managed by a caching system (node-cache) and a linq library node-linq.

If someone enter on the room after that someone have drawn, the system recover all the written and update the last client connected.

All the drawing action where saved on a buffer to server.



Basic version on github => Download it


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