Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

SetSecurityTokenServicePreferences

Sets the specified version of the global endpoint token as the token version used for the Amazon Web Services account.

By default, Amazon Security Token Service (Amazon STS) is available as a global service, and all Amazon STS requests go to a single endpoint at https://sts.amazonaws.com. Amazon recommends using Regional Amazon STS endpoints to reduce latency, build in redundancy, and increase session token availability. For information about Regional endpoints for Amazon STS, see Amazon Security Token Service endpoints and quotas in the Amazon General Reference.

If you make an Amazon STS call to the global endpoint, the resulting session tokens might be valid in some Regions but not others. It depends on the version that is set in this operation. Version 1 tokens are valid only in Amazon Web Services Regions that are available by default. These tokens do not work in manually enabled Regions, such as Asia Pacific (Hong Kong). Version 2 tokens are valid in all Regions. However, version 2 tokens are longer and might affect systems where you temporarily store tokens. For information, see Activating and deactivating Amazon STS in an Amazon Web Services Region in the IAM User Guide.

To view the current session token version, see the GlobalEndpointTokenVersion entry in the response of the GetAccountSummary operation.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

Errors

For information about the errors that are common to all actions, see Common Errors.

Examples

Example

This example illustrates one usage of SetSecurityTokenServicePreferences.

Sample Request

https://iam.amazonaws.com/?Action=SetSecurityTokenServicePreferences
&GlobalEndpointTokenVersion=v2Token
&Version=2010-05-08
&AUTHPARAMS

Sample Response

<SetSecurityTokenServicePreferences xmlns="https://iam.amazonaws.com/doc/2010-05-08/">
  <ResponseMetadata>
    <RequestId>31a241af-1ebc-12b4-9d0d-8f876EXAMPLE</RequestId>
  </ResponseMetadata>
</SetSecurityTokenServicePreferences>

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: