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+--- Forum: Scripting (https://forum.logicmachine.net/forumdisplay.php?fid=8)
+--- Thread: MQTT subscribe (/showthread.php?tid=1759)
RE: MQTT subscribe - FatMax - 31.01.2024
It looks like all the examples run inside the resident script. I would like to be able to send something through a separate function that is not in the resident script.
Do you have an example I can use, or nudge me in a direction?
RE: MQTT subscribe - admin - 31.01.2024
First script here: https://kb.logicmachine.net/integration/mqtt-client/
RE: MQTT subscribe - FatMax - 31.01.2024
I am testing the resident script with 0 sleep interval. It works fine, I receive messages and send messages through tagged grp objects. But let's say I have another function running in a script outside of this resident script.
Code:
function sendToMqtt(message)
-- the code to send something over mqtt on the already established connection --
end
-- script using the function
foo = 1
if foo<2 then
sendToMqtt('less than two')
endHow can I accomplish this without opening a new connection?
RE: MQTT subscribe - admin - 31.01.2024
Just create a new connection, it's much easier this way.
RE: MQTT subscribe - FatMax - 31.01.2024
Yes, it is easy. But wouldn't this affect speed and performance? Let's consider 200 objects changing value within 5 seconds and I want all that data pushed up outside of the resident script scope?
RE: MQTT subscribe - admin - 31.01.2024
Then use a resident script. The script can modified with an additional callback function per object (similar to mqtt_to_object_conv, but in reverse). It will transform the object value the way you needed before publishing it to MQTT.
RE: MQTT subscribe - FatMax - 31.01.2024
(31.01.2024, 13:23)admin Wrote: Then use a resident script. The script can modified with an additional callback function per object (similar to mqtt_to_object_conv, but in reverse). It will transform the object value the way you needed before publishing it to MQTT.
I am sending large amount of data generated from functions. I can not store the data in an object and therefore need to send it directly to the mqtt broker.
RE: MQTT subscribe - admin - 31.01.2024
Use a separate connection for publishing then.
RE: MQTT subscribe - xxyzz - 23.05.2024
Hi There,
I am currently trying to write a single Value from a JSON Payload to an Object.
I tested JSON Parse to Lua Table by adding the Payload from my MQTT Browser to the Script and decode it. Works just fine. MQTT Payload to Objects works as well.
But my JSON is too large for a String Object. But I struggle to add the MQTT Payload to a Variable.
Does Anyone have any Ideas or experience with this?
Thanks
RE: MQTT subscribe - admin - 23.05.2024
Check this: https://forum.logicmachine.net/showthread.php?tid=5136&pid=33207#pid33207