Hi All I am looking for a node that has an input node and an output node and caches any objects recieved by the input node. The output node would emit these objects (keyed on an object property) each time a new value was set. I have done a bit of searching but not sure exactly what to search for! …

[image] Roaders: I am looking for a node that has an input node and an output node and caches any objects recieved by the input node. The output node would emit these objects (keyed on an object property) each time a new value was set. I have done a bit of searching but not sure exactly what to…

Well... the RBE/Filter node will do caching by topic - i.e. only sending on changes - but won't let you query it on demand. And the built in context will let you store anything and then query it - but won't trigger events on change. So maybe a combination of RBE node then writing to context would g…

[image] dceejay: but won't trigger events on change Yes, that is really something that would be extremely useful to be added to context storage :wink:

[image] TotallyInformation: that is really something that would be extremely useful to be added to context storage Sure you have mentioned this before Julian :wink: [image] Lighting controller ideas General I made my own if you are interested? [piJZP4h6xK]

[image] Steve-Mcl: Sure you have mentioned this before Haha, one day, one of us will have the time to do something about it!

[image] Roaders: The output node would emit these objects (keyed on an object property) each time a new value was set. Do you mean you want to emit the complete set of inputs whenever an input is received. The Join node will do that for you, configured in key/value mode.

sorry, I possibly wasn't very clear. I will only cache the last payload for each key (i.e. the cache will always be current with the current state of the light). The config node will basically hold a map of string => payload. Each time a new message arrives the value for that key (or lightId) will …

so - why won't a simple RBE /filter node plus change node (to save to context) work ?

well, I don't understand these nodes well enough to understand your proposal. From what I understand of your proposal I would need several nodes to satisfy the different requirements and would store data in the context which I would then query in function nodes. I am sure this is all possible but fo…

Well no need for functions as far as i can tell - just one filter and two change nodes... which I would argue is simpler than writing your own. [image] [{"id":"f162589ba24889b7","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"8629dac32f0ac352","type":"inject","z":"f162589ba24889…

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Does an equivalent node exist / what should I call it

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Steve-Mcl 20 December 2021 10:41 5

Sure you have mentioned this before Julian

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Does an equivalent node exist / what should I call it

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