AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the DecodeAuthorizationMessage operation. Decodes additional information about the authorization status of a request from an encoded message returned in response to an AWS request.

For example, if a user is not authorized to perform an action that he or she has requested, the request returns a Client.UnauthorizedOperation response (an HTTP 403 response). Some AWS actions additionally return an encoded message that can provide details about this authorization failure.

Only certain AWS actions return an encoded authorization message. The documentation for an individual action indicates whether that action returns an encoded message in addition to returning an HTTP code.

The message is encoded because the details of the authorization status can constitute privileged information that the user who requested the action should not see. To decode an authorization status message, a user must be granted permissions via an IAM policy to request the DecodeAuthorizationMessage (sts:DecodeAuthorizationMessage) action.

The decoded message includes the following type of information:

Inheritance Hierarchy


Namespace: Amazon.SecurityToken.Model
Assembly: AWSSDK.SecurityToken.dll
Version: 3.x.y.z


public class DecodeAuthorizationMessageRequest : AmazonSecurityTokenServiceRequest

The DecodeAuthorizationMessageRequest type exposes the following members



Public Property EncodedMessage System.String

Gets and sets the property EncodedMessage.

The encoded message that was returned with the response.


To decode information about an authorization status of a request

var response = client.DecodeAuthorizationMessage(new DecodeAuthorizationMessageRequest 
    EncodedMessage = ""

string decodedMessage = response.DecodedMessage;


Version Information

.NET Standard:
Supported in: 1.3

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

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

Supported Versions: 4.6 and above
Supported Platforms: Android, iOS, Standalone