FAQ (Frequently asked questions)

1.

Q: I'm confused, I see MQTT everywhere, I've seen mosquito mqtt, I've seen RabbitMQ, and then you throw Redis, Mongo, Mosquitto, ZeroMQ etc). What is the purpose of mosca anyway?

A: Mosca is an effort to implement the MQTT protocol (similar to the way mosquitto does) but this time using node.js. To do that there was a need for a pub/sub service, and so ascoltatore was brought into the equation. Ascoltatore supports many kind of pub/sub providers, and so you can run mosca with any of the supported pub/sub providers.

Details about each:
- Mosquitto IS a mqtt broker and does pretty much the same mosca does, but not with node
- RabbitMQ implements the mqtt protocol, albeit in Mosca it supports AMQP.
- MongoDB and Redis do NOT implement the MQTT protocol, but are used as pub/sub services in order to help mosca provide MQTT.