Page History

...

{ 
    "signal"  :  "vehicle.body.cabin.temperature"
    "count"   : "132"  # Might be redundant information, optional.
    "values" : {
        { 
            "ts" : "2020-01-10T02:59:43.491751"
            "value" : "42 .5"
        },
        { 
            "ts" : "2020-01-10T02:59:43.491751"
            "value" : "43.0"
        },
        ... 130 more records
    }
}

AVRO-schema example (not complete)

{
  "type": "record",
  "name": "TimeSeries",
  "fields" : [
    {"name": "signal", "type": "string"}, 
    {"name": "count", "type": "int" },
    {"name": "values", "type": "array"  "items" : 
        { "name" : "ts", "type" : "string"   # ISO formatted timestamp  },
        { "name" : "value", "type" "union" { TODO: union of int/long/string/  # VSS types }
    }
}

Snapshot:

{ 
    "timeperiod" { 
        "start" : "2020-01-10T02:00:00Z",
        "end" : "2020-01-11T01:59:59Z"
    },
    "values" : {
     {
        "signal" : "vehicle.body.cabin.temperature",
        "value" : "22.0",
        "ts" : "2020-01-10T02:59:43.491751"
     },
     {
        "signal" : "vehicle.drivetrain.engine.rpm.average",
        "value" : "3200",
        "ts" : "2020-01-10T02:59:44.100403"
     }
}

...