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Publishes an MQTT message.
Requires permission to access the Publish action.
For more information about MQTT messages, see MQTT Protocol in the IoT Developer Guide.
For more information about messaging costs, see Amazon Web Services IoT Core pricing - Messaging.
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginPublish and EndPublish.
Namespace: Amazon.IotData
Assembly: AWSSDK.IotData.dll
Version: 3.x.y.z
public abstract Task<PublishResponse> PublishAsync( PublishRequest request, CancellationToken cancellationToken )
Container for the necessary parameters to execute the Publish service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| InternalFailureException | An unexpected error has occurred. |
| InvalidRequestException | The request is not valid. |
| MethodNotAllowedException | The specified combination of HTTP verb and URI is not supported. |
| ThrottlingException | The rate exceeds the limit. |
| UnauthorizedException | You are not authorized to perform this operation. |
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5