Hello , I'm using JOIN node to join multiple JSON Objects in to a merged object. This works properly. But I need to use and external trigger every "5 minutes" to generate the output of the "join" node. I'm using a simple scheduled "inject" as trigger. From node-red-contrib-join documentation I c…

Don't use node-red-contrib-join, it has not been updated for four years and probably therefore will have problems. Can't you use the node-red core Join node? It should do what you want.

Hello , I've been able to do it , but the problem is at starttime, i need to initialise all inputs of JOIN node rather UI or other sources to get a complete joined merged Object. Is any posibility to keep/save values between reboots, or flow restarts? May I use set-state get-state nodes ?

ok , Colin sorry about that. With retained topic you mean configure MQTT OUT node with Retain set to TRUE ?

Yes, or pass it in the message as described in the node help. But first if you don't know what retained topics are then look at this guide to mqtt.

Problem passing topic.trigger to JOIN node

General

Colin 24 October 2020 14:20 4

Is this the same question as on the other thread? If so then please close one of them and keep the conversation to one thread. I have already suggested using retained topics in the other thread.

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Problem passing topic.trigger to JOIN node

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