Parsing a string?

[Rainer Müller]

Hi all,

very nice APP! I have the following problem to solve:

My MQTT topic gives me the following string:

{"battery": 91, "contact": true, "last_seen": "2021-05-21T20:00:12+02:00", "linkquality": 76, "voltage": 2985}

I only want to display the if "contact" is true or false. I tried to use JSON but couldn't manage it. I think the whole message is not interpreted as JSON string.

Any ideas how I can manage this?

Thank you for your help in advance

Rainer