 	rclientSub: rclientSub
 
 	emitToRoom: (room_id, message, payload...) ->
+		if !room_id?
+			logger.err {err: new Error("Empty room_id"), message, payload}, "error emitting to room"
+			return
 		@rclientPub.publish "editor-events", JSON.stringify
 			room_id: room_id
 			message: message

		message = JSON.parse(message)
		if message.room_id == "all"
			io.sockets.emit(message.message, message.payload...)
		else
			io.sockets.in(message.room_id).emit(message.message, message.payload...)
		

Settings = require 'settings-sharelatex'
logger = require 'logger-sharelatex'
redis = require("redis-sharelatex")
rclientPub = redis.createClient(Settings.redis.web)
rclientSub = redis.createClient(Settings.redis.web)
