GET api/v1/devices/{deviceId}/charts/{chartId}/measurements/channel/{channel}/field/{field}?startDate={startDate}&endDate={endDate}&limit={limit}&aggregationThreshold={aggregationThreshold}&rangeType={rangeType}

Get measurements for the specified device field. NB: This uses a different route to fit in better with the /devices/id/... format. If the device allows anonymous access this method will return the measurements without the need for authentication.

Request Information

URI Parameters

Name	Description	Type	Additional information
deviceId	The device's Id.	globally unique identifier	Required
chartId	Reserved for later use. Use Guid.Empty ("00000000-0000-0000-0000-000000000000") for now.	globally unique identifier	Required
channel	The measurements channel.	integer	Required
field	The field.	string	Required
startDate	Read results starting from this date.	string	Default value is
endDate	The end date of the results to read.	string	Default value is
limit	How many results to request. This is limited to 1000 maximum. Start and End date should be used for pagination	integer	None.
aggregationThreshold	How many "buckets" the aggregation should optimise into. Typically this would be at max the x-pixels on the chart	integer	Default value is 500
rangeType	The range type of the chart (i.e. individual points or hourly, daily etc)	ChartDataRangeType	Default value is Points

Body Parameters

None.

Response Information

Resource Description

ChartDataDto

Name	Description	Type	Additional information
Fields		Collection of ChartFieldDataDto	None.

Response Formats

application/json, text/json, application/senml+json

Sample:

{
  "Fields": [
    {
      "Name": "sample string 1",
      "FieldLabel": "sample string 2",
      "Unit": "sample string 3",
      "ChartColor": "sample string 4",
      "UseSecondAxis": true,
      "ChartAxisOption": 0,
      "Points": [
        [
          1.0,
          2.0
        ],
        [
          1.0,
          2.0
        ]
      ],
      "Statistics": {
        "TotalPoints": 1,
        "Average": 2.0,
        "StandardDeviation": 3.0,
        "Min": 4.0,
        "Max": 5.0,
        "DateRange": {
          "Start": "2025-10-30T16:22:18.6583613+00:00",
          "End": "2025-10-30T16:22:18.6583613+00:00"
        },
        "Sum": 6.0
      }
    },
    {
      "Name": "sample string 1",
      "FieldLabel": "sample string 2",
      "Unit": "sample string 3",
      "ChartColor": "sample string 4",
      "UseSecondAxis": true,
      "ChartAxisOption": 0,
      "Points": [
        [
          1.0,
          2.0
        ],
        [
          1.0,
          2.0
        ]
      ],
      "Statistics": {
        "TotalPoints": 1,
        "Average": 2.0,
        "StandardDeviation": 3.0,
        "Min": 4.0,
        "Max": 5.0,
        "DateRange": {
          "Start": "2025-10-30T16:22:18.6583613+00:00",
          "End": "2025-10-30T16:22:18.6583613+00:00"
        },
        "Sum": 6.0
      }
    }
  ]
}

application/xml, text/xml

Sample:

<ChartDataDto xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/AnalysisUK.Tinamous.www.ApiControllers.Models.DeviceChartsMeasurements">
  <Fields>
    <ChartFieldDataDto>
      <ChartAxisOption>Unknown</ChartAxisOption>
      <ChartColor>sample string 4</ChartColor>
      <FieldLabel>sample string 2</FieldLabel>
      <Name>sample string 1</Name>
      <Points xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <d4p1:ArrayOfdecimal>
          <d4p1:decimal>1</d4p1:decimal>
          <d4p1:decimal>2</d4p1:decimal>
        </d4p1:ArrayOfdecimal>
        <d4p1:ArrayOfdecimal>
          <d4p1:decimal>1</d4p1:decimal>
          <d4p1:decimal>2</d4p1:decimal>
        </d4p1:ArrayOfdecimal>
      </Points>
      <Statistics>
        <Average>2</Average>
        <DateRange>
          <End>2025-10-30T16:22:18.6583613+00:00</End>
          <Start>2025-10-30T16:22:18.6583613+00:00</Start>
        </DateRange>
        <Max>5</Max>
        <Min>4</Min>
        <StandardDeviation>3</StandardDeviation>
        <Sum>6</Sum>
        <TotalPoints>1</TotalPoints>
      </Statistics>
      <Unit>sample string 3</Unit>
      <UseSecondAxis>true</UseSecondAxis>
    </ChartFieldDataDto>
    <ChartFieldDataDto>
      <ChartAxisOption>Unknown</ChartAxisOption>
      <ChartColor>sample string 4</ChartColor>
      <FieldLabel>sample string 2</FieldLabel>
      <Name>sample string 1</Name>
      <Points xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <d4p1:ArrayOfdecimal>
          <d4p1:decimal>1</d4p1:decimal>
          <d4p1:decimal>2</d4p1:decimal>
        </d4p1:ArrayOfdecimal>
        <d4p1:ArrayOfdecimal>
          <d4p1:decimal>1</d4p1:decimal>
          <d4p1:decimal>2</d4p1:decimal>
        </d4p1:ArrayOfdecimal>
      </Points>
      <Statistics>
        <Average>2</Average>
        <DateRange>
          <End>2025-10-30T16:22:18.6583613+00:00</End>
          <Start>2025-10-30T16:22:18.6583613+00:00</Start>
        </DateRange>
        <Max>5</Max>
        <Min>4</Min>
        <StandardDeviation>3</StandardDeviation>
        <Sum>6</Sum>
        <TotalPoints>1</TotalPoints>
      </Statistics>
      <Unit>sample string 3</Unit>
      <UseSecondAxis>true</UseSecondAxis>
    </ChartFieldDataDto>
  </Fields>
</ChartDataDto>