Timeseries data format

Timeseries format

{
  device_legend: [device1, device2],
  data_legend: [[dataType1, dataType2], [device2_dataType1]],
  data: [
    {
      x: timestamp,
      y: [
        [
          dataType1_value,
          dataType2_value
        ],
        [
          dataType1_value
        ]
      ]
    }
  ]
}

Could be query string or post body
/api/timelinedata?devices=[device1, device2]&dataTypes=[[dataType1, dataType2], [device2_dataType1]]