Socket.io Whiteboard Example

Socket.io across multiple nodes, backed by redis, on Heroku.

Deploying to Heroku via CLI

$ heroku create
$ git push heroku master
$ heroku open

Scaling

Socket.io requires sticky sessions in order to be scaled up. On Heroku, you can enable that with:

$ heroku features:enable http-session-affinity
$ herouk scale web=4:standard-1x

Developing locally

$ yarn
$ heroku local -f Procfile.dev