IotHubBaseClient.SetDirectMethodCallbackAsync Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Sets the callback for all direct method calls from the service. This instance must be opened already.
public System.Threading.Tasks.Task SetDirectMethodCallbackAsync (Func<Microsoft.Azure.Devices.Client.DirectMethodRequest,System.Threading.Tasks.Task<Microsoft.Azure.Devices.Client.DirectMethodResponse>> directMethodCallback, System.Threading.CancellationToken cancellationToken = default);member this.SetDirectMethodCallbackAsync : Func<Microsoft.Azure.Devices.Client.DirectMethodRequest, System.Threading.Tasks.Task<Microsoft.Azure.Devices.Client.DirectMethodResponse>> * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SetDirectMethodCallbackAsync (directMethodCallback As Func(Of DirectMethodRequest, Task(Of DirectMethodResponse)), Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- directMethodCallback
- Func<DirectMethodRequest,Task<DirectMethodResponse>>
The callback to be invoked when any method is invoked by the cloud service.
- cancellationToken
- CancellationToken
A cancellation token to cancel the operation.
Returns
Exceptions
Thrown when the operation has been canceled.
Remarks
Calling this API more than once will result in the callback set last overwriting any previously set callback. A method callback can be unset by setting directMethodCallback to null.
Applies to
Collabora con noi su GitHub
L'origine di questo contenuto è disponibile in GitHub, in cui è anche possibile creare ed esaminare i problemi e le richieste pull. Per ulteriori informazioni, vedere la guida per i collaboratori.
