Message Class | AWS SDK for .NET V3

This class reads in JSON formatted Amazon SNS messages into Message objects. The messages can also be verified using the IsMessageSignatureValid operation.

Inheritance Hierarchy

System.Object
Amazon.SimpleNotificationService.Util.Message

Namespace: Amazon.SimpleNotificationService.Util
Assembly: AWSSDK.SimpleNotificationService.dll
Version: 3.x.y.z

Syntax

public class Message

The Message type exposes the following members

Properties

Name	Type	Description
IsNotificationType	System.Boolean	Returns true if the message type is a notification message.
IsSubscriptionType	System.Boolean	Returns true if the message type is a subscription confirmation.
IsUnsubscriptionType	System.Boolean	Returns true if the message type is a unsubscribe confirmation.
MessageId	System.String	Gets a Universally Unique Identifier, unique for each message published. For a notification that Amazon SNS resends during a retry, the message ID of the original message is used.
MessageText	System.String	Gets the MessageText value specified when the notification was published to the topic.
Signature	System.String	Gets the Base64-encoded "SHA1withRSA" or "SHA256withRSA" signature of the Message, MessageId, Subject (if present), Type, Timestamp, and TopicArn values.
SignatureVersion	System.String	Gets the Version of the Amazon SNS signature used.
SigningCertURL	System.String	Gets the URL to the certificate that was used to sign the message.
Subject	System.String	Gets the Subject parameter specified when the notification was published to the topic. Note that this is an optional parameter. If no Subject was specified, then this name/value pair does not appear in this JSON document.
SubscribeURL	System.String	Gets the URL that you must visit in order to re-confirm the subscription. Alternatively, you can instead use the Token with the ConfirmSubscription action to re-confirm the subscription.
Timestamp	System.DateTime	Gets the time (GMT) when the notification was published.
Token	System.String	Gets a value you can use with the ConfirmSubscription action to re-confirm the subscription. Alternatively, you can simply visit the SubscribeURL.
TopicArn	System.String	Gets the Amazon Resource Name (ARN) for the topic.
Type	System.String	Gets the type of message. Possible values are Notification, SubscriptionConfirmation, and UnsubscribeConfirmation.
UnsubscribeURL	System.String	Gets a URL that you can use to unsubscribe the endpoint from this topic. If you visit this URL, Amazon SNS unsubscribes the endpoint and stops sending notifications to this endpoint.

Methods

Note:

Asynchronous operations (methods ending with Async) in the table below are for .NET 4.5 or higher. For .NET 3.5 the SDK follows the standard naming convention of BeginMethodName and EndMethodName to indicate asynchronous operations - these method pairs are not shown in the table below.

	Name	Description
	IsMessageSignatureValid()	Verifies the authenticity of a message sent by Amazon SNS. This is done by computing a signature from the fields in the message and then comparing the signature to the signature provided as part of the message.
	ParseMessage(string)	Parses the JSON message from Amazon SNS into the Message object.
	SubscribeToTopic()	Uses the SubscribeURL property to subscribe to the topic
	UnsubscribeFromTopic()	Uses the UnsubscribeURL property to unsubscribe from the topic

Fields

Name	Type	Description
MESSAGE_TYPE_NOTIFICATION	System.String	The value of the Type property for a notification message
MESSAGE_TYPE_SUBSCRIPTION_CONFIRMATION	System.String	The value of the Type property for a subscription confirmation message
MESSAGE_TYPE_UNSUBSCRIPTION_CONFIRMATION	System.String	The value of the Type property for a unsubscribe confirmation message

Version Information

.NET Core App:
Supported in: 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5, 4.0, 3.5