MQTT support

[Timtam94]

Hi there,

in a lot of my projects in the IoT space I tend to work with RabbitMQ and Kafka but also MQTT. I would really appreciate a framework such as yours, that combine these protocols into one.

Thank you very much for your work!

[Lancetnik]

Thank you for your kind words! We'll support for MQTT for sure in the future, but we should finish with the brokers already in backlog at first 😞

[davorrunje]

@Timtam94 what lib are you currently using for MQTT?

[Timtam94]

Thanks for your reply! I am currently using paho-mqtt

[davorrunje]

How stable it is? It looks not well maintained

[Lancetnik]

As I know, this is the only one lib for MQTT in python
Probably, it has no commits last time cuz MQTT has no changes for decades

[Timtam94]

Indeed, I am not aware of another library than that. So far I had no issues with it.

In the industrial sector, MQTT is one of the major protocols, despite it's age.

[gegnew]

There's also an async wrapper for paho: https://github.com/sbtinstruments/aiomqtt

[Lancetnik]

There's also an async wrapper for paho: https://github.com/sbtinstruments/aiomqtt

Yep, I known about it
But I am not sure about using extra dependencie... Probably, we should (and can) wrap paho by ourselves the same way

[skewty]

There's also an async wrapper for paho: https://github.com/sbtinstruments/aiomqtt

Yep, I known about it But I am not sure about using extra dependencie... Probably, we should (and can) wrap paho by ourselves the same way

aiomqtt's dependencies are minimal. Here they are from pyproject.toml

[tool.poetry.dependencies]
python = "^3.8"
paho-mqtt = "^2.1.0"
typing-extensions = {version = "^4.4.0", markers = "python_version < '3.10'"}

Paho recently had a v2 release which aiomqtt is using. Paho uses a legacy callback system and is rather ugly (very non pythonic) to work with. The aiomqtt team is careful not to couple too deep into paho client as to ensure aiomqtt remains easy to maintain. The wrapper is light but non trivial. aiomqtt is likely worth coupling for this reason.

[benedikt-bartscher]

I know, it's not native mqtt, but you can already use mqtt via the RabbitMQ MQTT Plugin.

[vvanglro]

This looks great too.
https://github.com/agronholm/mqttproto

[Lancetnik]

This looks great too. https://github.com/agronholm/mqttproto

Yeah, but it is still imperative syntax

Is it really maintained by the man, created anyio and aspcheduler? I think, we can contact with him and use this project as an underline client this case