Hello, I'm trying to create a flow to change the brightness of my light, I can set the brightness directly however I can't figure out how to use a global variable I've set elsewhere in the flow. I'm sure I'm just not using the right syntax. currently my json looks like this { "entity_id": "li…

Select J: (jsonata expression) rather than JSON type input. Then { "entity_id": "light.living_room_main_light_light", "brightness": globalContext("brightness") }

There are several ways. The easiest is to pass the msg through a change node and set msg.payload.brightness to global.brightness [image] Crabsticks: instead of the number 22 I want to use a variable global.brightness put I dom not know how to import the variable into the json correctly. Ass…

Sorry if JSON is not the correct term. I'm using a service call node and editing the data field. I need to be able to pull in the global variable. I've created a payload message as you suggested, how do I use the payload instead of the 22 value?

It is a home assistant node, sorry for the confusion. I'll try and figure out how to tag the post

[image] Crabsticks: how do I use the payload instead of the 22 value? { "entity_id": "light.living_room_main_light_light", "brightness": msg.payload }

[image] E1cid: { "entity_id": "light.living_room_main_light_light", "brightness": globalContext("brightness") } many thinkas , this was what I needed , It's all working now :slight_smile:

Using a global variable in the data/json

General

Steve-Mcl 20 September 2024 15:53 4

I have no idea what that is.

does the nodes field support JSONata? You could use JSONata to grab context values. Or perhaps there is a msg fired into this " service call node" in which case you can use the switch node BEFORE it to grab the global value and add it to the payload?

If this is a home assistant node, then please tag the post with home-assistant so that others are not tripped up too.

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Using a global variable in the data/json

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