Hi,
I am trying the new option within the API with Reporter Server October 2020 version to update parameters. The idea is that the PowerBI report is deployed to different servers and I will update the parameter "servername" with the matching server name.
I am following the guide here: https://docs.microsoft.com/en-us/power-bi/report-server/connect-data-source-apis
This works fine unless the parameter contains a special character. In my case Swedish characters like (å). When I want to change the parameter and the parameter value contains this character it shows me this error:
"Unable to apply new parameters: System.Collections.Generic.List`1[Model.DataModelParameter] to the datastore due to Microsoft.ReportingServices.Portal.Interfaces.Exceptions.InvalidDataModelParameterException: There was an error uploading your .pbix file. Verify that the file has not been corrupted and that the file extension matches the format of the file. ---> System.Net.ProtocolViolationException: Bytes to be written to the stream exceed the Content-Length bytes size specified.\r\n at System.Net.ConnectStream.InternalWrite(Boolean async, Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)\r\n at System.Net.ConnectStream.Write(Byte[] buffer, Int32 offset, Int32 size)\r\n at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder)\r\n at System.IO.StreamWriter.Dispose(Boolean disposing)\r\n at System.IO.TextWriter.Dispose()\r\n at Microsoft.ReportingServices.Portal.ODataWebApi.Utils.PbixReportHelper.BuildUpdateDataModelParametersWebRequest(Guid catalogId, IList`1 dataModelParameters, String powerBiUri, ILogger logger, IPrincipal userPrincipal, String reportServerHostName)\r\n at Microsoft.ReportingServices.Portal.ODataWebApi.Utils.PbixReportHelper.UpdateDataModelParametersInPowerBI(Guid catalogId, IList`1 dataModelParameters, String powerBiUri, ILogger logger, IPrincipal userPrincipal, String reportServerHostName)\r\n at Microsoft.ReportingServices.Portal.ODataWebApi.Common.PowerBIReportsControllerHelper.UpdateDataModelParametersInAS(Guid id, IList`1 parameters)\r\n --- End of inner exception stack trace ---\r\n at Microsoft.ReportingServices.Portal.ODataWebApi.Common.PowerBIReportsControllerHelper.UpdateDataModelParametersInAS(Guid id, IList`1 parameters)\r\n at Microsoft.ReportingServices.Portal.ODataWebApi.V2.Controllers.PowerBIReportsController.<PostDataModelParameters>d__33.MoveNext()"
I have found som indication as this is an issue with Invoke-WebRequest which is used when I follow the example mentioned earlier.
Anyone else seen this issue and found a solution?
Stefan
