Process MQTT-data time triggered

[GTiglio]

Man, this can't be so difficult - but I can't manage to get this to work:

I have a MQTT-input node which sends every few seconds a value. I need every hour the last value of this MQTT-node to store it in an Influx DB. I set up an inject-node, which triggers at each hour, but how to combine the inject message with the MQTT-value to send the value hourly further to the InfluxDB ?
I tried with an function-node, the trigger works, but how to get access to the MQTT-payload?

[Steve-Mcl]

There are a few ways. One of them would be to use the join node..

See this article in the cookbook for an example of how to join messages into one object.

[zenofmud]

Another way would be to have the mqtt-in node feed a trigger node set like this:

This is ony allow one msg per hour to pass thru.

[Colin]

Or a Delay node

If there were multiple channels that this needed to handle then one Delay could do them all by putting it into For each msg.topic mode.

[GTiglio]

Perfect, thanks... It seems I struggle stills with basics...

[GTiglio]

thank you !