IoTSiteWise / Client / get_asset_property_value_history

get_asset_property_value_history#

IoTSiteWise.Client.get_asset_property_value_history(**kwargs)#

Gets the history of an asset property’s values. For more information, see Querying historical values in the IoT SiteWise User Guide.

To identify an asset property, you must specify one of the following:

  • The assetId and propertyId of an asset property.

  • A propertyAlias, which is a data stream alias (for example, /company/windfarm/3/turbine/7/temperature). To define an asset property’s alias, see UpdateAssetProperty.

See also: AWS API Documentation

Request Syntax

response = client.get_asset_property_value_history(
    assetId='string',
    propertyId='string',
    propertyAlias='string',
    startDate=datetime(2015, 1, 1),
    endDate=datetime(2015, 1, 1),
    qualities=[
        'GOOD'|'BAD'|'UNCERTAIN',
    ],
    timeOrdering='ASCENDING'|'DESCENDING',
    nextToken='string',
    maxResults=123
)
Parameters:

  • assetId (string) – The ID of the asset, in UUID format.

  • propertyId (string) – The ID of the asset property, in UUID format.

  • propertyAlias (string) – The alias that identifies the property, such as an OPC-UA server data stream path (for example, /company/windfarm/3/turbine/7/temperature). For more information, see Mapping industrial data streams to asset properties in the IoT SiteWise User Guide.

  • startDate (datetime) – The exclusive start of the range from which to query historical data, expressed in seconds in Unix epoch time.

  • endDate (datetime) – The inclusive end of the range from which to query historical data, expressed in seconds in Unix epoch time.

  • qualities (list) –

    The quality by which to filter asset data.

    • (string) –

  • timeOrdering (string) –

    The chronological sorting order of the requested information.

    Default: ASCENDING

  • nextToken (string) – The token to be used for the next set of paginated results.

  • maxResults (integer) –

    The maximum number of results to return for each paginated request. A result set is returned in the two cases, whichever occurs first.

    • The size of the result set is equal to 4 MB.

    • The number of data points in the result set is equal to the value of maxResults. The maximum value of maxResults is 20000.

Return type:

dict

Returns:

Response Syntax

{
    'assetPropertyValueHistory': [
        {
            'value': {
                'stringValue': 'string',
                'integerValue': 123,
                'doubleValue': 123.0,
                'booleanValue': True|False
            },
            'timestamp': {
                'timeInSeconds': 123,
                'offsetInNanos': 123
            },
            'quality': 'GOOD'|'BAD'|'UNCERTAIN'
        },
    ],
    'nextToken': 'string'
}

Response Structure

  • (dict) –

    • assetPropertyValueHistory (list) –

      The asset property’s value history.

      • (dict) –

        Contains asset property value information.

        • value (dict) –

          The value of the asset property (see Variant).

          • stringValue (string) –

            Asset property data of type string (sequence of characters).

          • integerValue (integer) –

            Asset property data of type integer (whole number).

          • doubleValue (float) –

            Asset property data of type double (floating point number).

          • booleanValue (boolean) –

            Asset property data of type Boolean (true or false).

        • timestamp (dict) –

          The timestamp of the asset property value.

          • timeInSeconds (integer) –

            The timestamp date, in seconds, in the Unix epoch format. Fractional nanosecond data is provided by offsetInNanos.

          • offsetInNanos (integer) –

            The nanosecond offset from timeInSeconds.

        • quality (string) –

          The quality of the asset property value.

    • nextToken (string) –

      The token for the next set of results, or null if there are no additional results.

Exceptions