using Node Red with RabbitMQ's MQTT plugin

[Edward Vielmetti]

Is anyone doing this? I have been using Mosquitto with 

good success, but I need RabbitMQ for another project,

and I'm hoping to run one flavor of MQTT broker on my

poor underpowered old Mac rather than two in parallel...

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Edward Vielmetti +1 734 330 2465

edward.v...@gmail.com

[Edward Vielmetti]

Just a quick followup, since I seem to have figured this out, running Node Red and using RabbitMQ as the underlying MQTT broker (both on my MacBook laptop).

The one glitch I have that I can't explain by looking at any docs I have found is that when I publish an MQTT message to

      test/example.com/foo

it comes back out of RabbitMQ on the channel

      test/example/com/foo

i.e. all dots are converted to slashes in the process. This requires that Node Red nodes that subscribe to a particular channel or wildcard get adjusted for the new name, and also requires that I have the right kind of naming conventions adjusted for other things.

Onwards...

Ed

[Dave C-J]

Interesting !  - Anyone else seen this ?

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regards

Dave Conway-Jones

[Nicholas O'Leary]

I had forgotten that RabbitMQ did this (not actually used it myself). But yes, I remember this coming up when they first added support; how do you sensibly map between the different protocol topic semantics.

Nick

[Patrick Mclean]

Edward, I'm attempting the same thing. But with little success. I'm trying to get NodeRed to subscribe to a RabbitMQ. I think the issue I'm having is the naming/config - can you give a brief example of what values you entered into the MQTT connector in NodeRed to get at the RabbitMQ broker?

[SATANIK Panda]

Hi Edward,

Can you please help me with a sample code for RabbitMQ client node on node red.

regards,

satanik

[Edward Vielmetti]

Hi, I don't have anything to add regarding RabbitMQ setup for MQTT support beyond this:

http://www.rabbitmq.com/mqtt.html

the one caveat noted earlier in this thread is that topic names at that time that had a dot character (".") in them were silently transformed into the slash character ("/"). If you have anywhere that has dynamic generation of topic names, you'll need to take this into account.

thanks

Ed

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[austin sandford]

Don't know if this is of any interest, but of the latest build, I've found that I can interchange the brokers between Mosquitto and Rabbit with the same results.