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PI Web API Reference

StreamSet RetrieveStreamSetUpdates

StreamSet RetrieveStreamSetUpdates

Receive stream updates

Remarks

The supplied markers will identify the set of stream updates to retrieve. For a 200 response, the returned location header will contain the url for retrieving the stream updates.

Request

GET streamsets/updates

URL Parameters

  • marker

    Identifier of stream source and current position. Multiple markers may be specified with multiple instances of the parameter.

  • selectedFields

    List of fields to be returned in the response, separated by semicolons (;). If this parameter is not specified, all available fields will be returned. See Selected Fields for more information.

  • webIdType

    Optional parameter. Used to specify the type of WebID. Useful for URL brevity and other special cases. Default is the value of the configuration item "WebIDType". See WebID Type for more information.

Status Codes

200: The stream updates have been successfully retrieved

Sample Response Body

{
  "Items": [
    {
      "Source": "I1AbEDqD5loBNH0erqeqJodtALAYIKyyz2F5BGAxQAVXYRDBAGyPedZG1sUmxOOclp3Flwg",
      "SourceName": "Water",
      "SourcePath": "\\\\MyAssetServer\\MyDatabase\\MyElement|Water",
      "RequestedMarker": "0cbbec466f3a42288c8c47112f54b852_0",
      "LatestMarker": "0cbbec466f3a42288c8c47112f54b852_12",
      "Status": "Updated",
      "Events": [
        {
          "Action": "Add",
          "PreviousEventAction": "PreviousEventArchived",
          "Timestamp": "2014-07-22T14:00:00Z",
          "UnitsAbbreviation": "m",
          "Good": true,
          "Questionable": false,
          "Substituted": false,
          "Annotated": false,
          "Value": 12.3
        },
        {
          "Action": "Add",
          "PreviousEventAction": "PreviousEventArchived",
          "Timestamp": "2014-07-22T14:00:00Z",
          "UnitsAbbreviation": "m",
          "Good": true,
          "Questionable": false,
          "Substituted": false,
          "Annotated": false,
          "Value": 12.3
        }
      ],
      "Links": {}
    },
    {
      "Source": "I1AbEDqD5loBNH0erqeqJodtALAYIKyyz2F5BGAxQAVXYRDBAGyPedZG1sUmxOOclp3Flwg",
      "SourceName": "Water",
      "SourcePath": "\\\\MyAssetServer\\MyDatabase\\MyElement|Water",
      "RequestedMarker": "0cbbec466f3a42288c8c47112f54b852_0",
      "LatestMarker": "0cbbec466f3a42288c8c47112f54b852_12",
      "Status": "Updated",
      "Events": [
        {
          "Action": "Add",
          "PreviousEventAction": "PreviousEventArchived",
          "Timestamp": "2014-07-22T14:00:00Z",
          "UnitsAbbreviation": "m",
          "Good": true,
          "Questionable": false,
          "Substituted": false,
          "Annotated": false,
          "Value": 12.3
        },
        {
          "Action": "Add",
          "PreviousEventAction": "PreviousEventArchived",
          "Timestamp": "2014-07-22T14:00:00Z",
          "UnitsAbbreviation": "m",
          "Good": true,
          "Questionable": false,
          "Substituted": false,
          "Annotated": false,
          "Value": 12.3
        }
      ],
      "Links": {}
    }
  ],
  "Links": {}
}
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