JSON fields with a '-' (hyphen) in their name

rjblake · Post by **rjblake** » Wednesday 04 April 2018 14:18

Help - I'm trying to update some devices using the JSON being returned from a call to a device. However, the fields/variables are all named with a hyphen (e.g. door-state, light-state, etc.). When I try to assign these to a variable in dzVents, (local garage_door = item.json.door-state), I get an error "... attempt to perform arithmetic on field 'door' (a nil value)". I assume this is because of the '-' and trying to subtract state from door. How can I uses this naming convention in dzVents?

dannybloe · Post by **dannybloe** » Wednesday 04 April 2018 16:06

item.json['door-state']

rjblake · Post by **rjblake** » Thursday 05 April 2018 11:42

Many thanks - could not for the life of me work out the required syntax. Too many damn programming languages floating around in my aging brain!

dannybloe · Post by **dannybloe** » Thursday 05 April 2018 12:48

Yup.. just follow this presentation and you're good to go: https://www.lua.org/pil/1.html

JSON fields with a '-' (hyphen) in their name [Solved]

JSON fields with a '-' (hyphen) in their name

Re: JSON fields with a '-' (hyphen) in their name

Re: JSON fields with a '-' (hyphen) in their name

Re: JSON fields with a '-' (hyphen) in their name [Solved]

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