I tried using same format but still getting following error -
Ooops, something broke: Microsoft.Rest.HttpOperationException: Operation returned an invalid status code 'BadRequest'
at Microsoft.PowerBI.Api.V1.Datasets.<SetAllConnectionsWithHttpMessagesAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.PowerBI.Api.V1.DatasetsExtensions.<SetAllConnectionsAsync>d__21.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at ProvisionSample.Program.<UpdateConnection>d__27.MoveNext() in C:\Projects\PowerBi\sample\Project\ProvisionSample\Program.cs:line 592
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at ProvisionSample.Program.<Run>d__17.MoveNext() in C:\Projects\PowerBi\sample\Project\ProvisionSample\Program.cs:line 235