Hi everyone, I have a question and couldn't find any answers on the forum : is there a way to create a flow automaticly, using a node ? I explain a bit more : I use Telegram-bot to get informations (ID and password) from a user when he types /start on a conversation. When it is trigerred, I'd lik…

Seems at first sight that you really don't need to have a line for each sensor. You are doing work that you can let the computer do. If all of the sensors have an MQTT topic naming convention, you could use a single wildcard. Either way though, you could then feed the MQTT input to a single json no…

You can add/remove dynamic MQTT subscriptions. So yes is the answer. See this thread for an example of performing dynamic MQTT subscriptions. In simple terms, you would simply need to make the telegram message do what the inject node does.

Thanks Colin. Forgot to update the link.

This is, I think, the fourth time dynamic mqtt has come up in a couple of days. Very odd.

thank you so much ! I'll try this :slight_smile: @Steve-Mcl actually, i'm not sure of what I want to do (^^) but I think this is more than "replace the inject node with a telegram message". Actually I have devices that send their messages (LoRa protocol) to a server called The Things Network. With …

[image] simmoinard: but I think this is more than "replace the inject node with a telegram message" I agree. Note the words "in simple terms" and the wide open/overly simplified (but hinting there may be more to it) statement of " make the telegram message do what the inject node does" …

[image] Steve-Mcl: Thingsboard Hmm, thingsboard MQTT connectivity seems a little off security wise. Device authentication options | ThingsBoard Community Edition Normally, you would generate and use an access token for ease-of-use but they don't support TLS over that. But after a very quick…

:wink: Of course ! I wanted just to precise it, just to be clear. And thank you for the work you do to explain in simple words to newbies like me ! :smile: I'm not talking about Things board, I tried it and it looks like complicated. I use The Things Network to declare gateways and devices. I then…

Hi @TotallyInformation @Steve-Mcl and thank you for all the good advices ! Here is a version of my flow with dynamic MQTT :). I can read infos from a .json file, connect to a MQTT broker and get the msg from my devices ! I also added something to append a new object and push it to a new file. Sti…

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Create a Node that can create a flow

Developing Nodes

Colin 21 November 2022 21:47 3

Did you mean this thread? Dynamic MQTT node's "actions->connect" guidance needed

1 Like

Topic		Replies	Views
Mqtt like link node based on topics General	59	2182	29 August 2020
Get mqtt topic data on demand? General	62	12394	5 April 2020
Dynamic subscribe MQTT General	9	5400	17 July 2021
I need MQTT node that have input and output General	41	3840	7 July 2020
[Fun Exercise]Make an MQTT broker in Node-RED General	62	1390	3 November 2023

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Create a Node that can create a flow

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