title: Prometheus scarpe json data from python script
body: <p>Thank you first,
  I have a question about Prometheus and JSON,
  in my case that I have a python script to monitor my device (camera), and after that it returns JSON data, but my problem that when it returns JSON data I don't know how to input it to Prometheus.
  I don't know which methods or keywords I should use in my case, because it will monitoring around 100 devices.
  Thank you for your help.</p>