Write data to local JSON file

[superCodrut]

The data obtained from Google API Awareness will be stored into a local json file.

[asorici]

Define the keys of the JSON file:

• timestamp UNIX Epoch
• timestamp UTC datetime format (e.g. 2017-04-24T14:00:05Z)
• connectivity_status (internet available/not)
• activity (list)
  • type
  • confidence
• location
  • longitude
  • latitude
• headphones on/off
• Wifi Networks (list)
  • SSID
  • signal_streng
• places (list)
  • name
  • confidence
• beacons (list)
  • ID
  • signal_strength
• weather

[asorici]

In order to have a simple overview of the configuration used when running the data collection service, we propose the following JSON file naming scheme:

• <datetime start>_<interrogation_frequency>s.json