[SOLVED] Check if JSON key exists in rule

Setup, Configuration and Use Scripts & Rules
4

So am I to guess you are using the MQTT binding to receive these JSON strings from zibgee2mqtt?

I ask because the MQTT 2 binding supports chaining transformations so you can put a REGEX transformation to look for the ‘click’ property and it will only get passed to the JSONPATH transform if it’s there.

It is also useful to avoid the XY Problem.

You can’t do what you are after in the call to the transform. It either needs to be there or it will generate an error.

You need to check if it’s there first. But that can be relatively easily be done using a simple

if(triggeringItem.state.toString.contains("click"))
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