AWS SDK Version 3 for .NET
API Reference

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You can update an event source mapping. This is useful if you want to change the parameters of the existing mapping without losing your position in the stream. You can change which function will receive the stream records, but to change the stream itself, you must create a new mapping.

If you are using the versioning feature, you can update the event source mapping to map to a specific Lambda function version or alias as described in the FunctionName parameter. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

If you disable the event source mapping, AWS Lambda stops polling. If you enable again, it will resume polling from the time it had stopped polling, so you don't lose processing of any records. However, if you delete event source mapping and create it again, it will reset.

This operation requires permission for the lambda:UpdateEventSourceMapping action.

Note:

For PCL and Unity this operation is only available in asynchronous form. Please refer to UpdateEventSourceMappingAsync.

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

Syntax

C#
public abstract UpdateEventSourceMappingResponse UpdateEventSourceMapping(
         UpdateEventSourceMappingRequest request
)
Parameters
request
Type: Amazon.Lambda.Model.UpdateEventSourceMappingRequest

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

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

Exceptions

ExceptionCondition
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. You will also get this exception if you have selected a deprecated runtime, such as Node v0.10.42.
ResourceConflictException The resource already exists.
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.
TooManyRequestsException

Examples

This operation updates a Lambda function event source mapping

To update a Lambda function event source mapping


var response = client.UpdateEventSourceMapping(new UpdateEventSourceMappingRequest 
{
    BatchSize = 123,
    Enabled = true,
    FunctionName = "myFunction",
    UUID = "1234xCy789012"
});

integer batchSize = response.BatchSize;
string eventSourceArn = response.EventSourceArn;
string functionArn = response.FunctionArn;
DateTime lastModified = response.LastModified;
string lastProcessingResult = response.LastProcessingResult;
string state = response.State;
string stateTransitionReason = response.StateTransitionReason;
string uuid = response.UUID;

            

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

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

See Also