#MQTT PROCESSOR
This is a framework-ish code for writing mqtt processors. MQTT processor is a standalone node js app which subscribes to topics described along with callbacks for those topics. And on message to the subscribed topics it does some action defined in callbacks (may be add data to db, fetch data from db or some other api and return on some channel agreed upon, turn some gpio on/off if running on some embedded device like Raspi or intel galileo or edison etc).
This project tries to create a structured way to process mqtt requests that has to be acted upon.
To run this app you need to export CLOUDMQTT_URL in format mqtts://user@password:serverurl:portid.
I have used cloudmqtt.com as my mqtt broker you can use anything that you fancy.
You can describe topics to be subscribed by creating new file in subscriptions/channels/ folder.
follow subscriptions/channels/utils.js for example.
This works by adding all the callbacks to one big json with topic's name as the key.
And then the key is subscribed upon. And on message event the incoming topic name is used and the appropriate call back is summoned.