redissocket.iosocket.io-redis

Socket.io redis How data stored and cleared

i am hosting an app on heroku which is using socket.io. it is using sockets and i am using heroku 4 standard 1X dynos . So for this i used redistogo service and socket.io-redis plugin. it's working great but i want to know does socket.io-redis also clear the data from redis db when socket disconnected. Heroku redis goto service providing only 20MB data storage. .Please guideline How socket.io-redis inserting and clearing the data in redis database.

Solution

  • Assuming that you are referring to https://github.com/Automattic/socket.io-redis/blob/master/index.js, it appears that the plugin uses Redis' PubSub functionality. PubSub does not maintain state in the Redis database so there's no need to clear any data.