Extrract out a value from an object in grafana for plotting

Is there a way to extrract out a value from an object in grafana e.g the first in the array for example

image

The closest I can find for testing is this


How do I get the first in the tags array out for graphing/plotting or tabling. In my case I want to plot max value of the rssi value in the json object above.

  • What Grafana version and what operating system are you using?
    8.0.6

  • What are you trying to achieve?
    extract an object from a json objec for plotting

  • How are you trying to achieve it?
    I wonder can I use the script(under options to do this) here?

  • What happened?
    na

  • What did you expect to happen?
    as above

  • Can you copy/paste the configuration(s) that you are having problems with?
    na

  • Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
    na

  • Did you follow any online instructions? If so, what is the URL?
    no