AWS SDK Version 3 for .NET
API Reference

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Using this API you can update the function version to which the alias points and the alias description. For more information, see Introduction to AWS Lambda Aliases.

This requires permission for the lambda:UpdateAlias action.


For .NET Core, PCL and Unity this operation is only available in asynchronous form. Please refer to UpdateAliasAsync.

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


public virtual UpdateAliasResponse UpdateAlias(
         UpdateAliasRequest request
Type: Amazon.Lambda.Model.UpdateAliasRequest

Container for the necessary parameters to execute the UpdateAlias service method.

Return Value
The response from the UpdateAlias service method, as returned by Lambda.


InvalidParameterValueException One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.
PreconditionFailedException The RevisionId provided does not match the latest RevisionId for the Lambda function or alias. Call the GetFunction or the GetAlias API to retrieve the latest RevisionId for your resource.
ResourceNotFoundException The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.
ServiceException The AWS Lambda service encountered an internal error.


This operation updates a Lambda function alias

To update a Lambda function alias

var response = client.UpdateAlias(new UpdateAliasRequest 
    Description = "",
    FunctionName = "myFunction",
    FunctionVersion = "1",
    Name = "functionAlias"

string aliasArn = response.AliasArn;
string description = response.Description;
string functionVersion = response.FunctionVersion;
string name = response.Name;


Version Information

.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

See Also