Error: Cannot assign a value in null context

[jswim788 (John Schmitz)]

You might want to look at this post from @5iver:

Zwave - Yale YRD220 Lock

Here is my current rule for parsing alarm_raw. My locks (Schlage BE469) do not update the lock_door channel, so I use alarm_raw to update the items linked to lock_door, and base rules off of that item’s state. Maybe all locks behave this way? You’ll find several examples of using the JSONPATH transform to parse the data in the lambda. This can be tricky though, because JSONPATH will throw an exception if the element name you are searching for does not exist in the JSON. I haven’t had any issues…