aws-lambda-event-sources: KafkaEventSourceProps does not support startingPosition AT_TIMESTAMP correctly?

[justin-masse]

Describe the bug

Getting a synth error: Error: startingPositionTimestamp must be provided when startingPosition is AT_TIMESTAMP when instantiating SelfManagedKafkaEventSource() with startingPosition: StartingPosition.AT_TIMESTAMP

Regression Issue

• Select this option if this issue appears to be a regression.

Last Known Working CDK Version

No response

Expected Behavior

KafkaEventSourceProps chain of inheritance should allow for passing in startingPositionTimestamp

Current Behavior

You cannot provide startingPositionTimestamp anywhere on that constructor prop... if you do it will error and even if you do something like ts-ignore-error it will give you an error when running synth:

Error: startingPositionTimestamp must be provided when startingPosition is AT_TIMESTAMP

Reproduction Steps

Instantiate SelfManagedKafkaEventSource() and in the props provide startingPosition: StartingPosition.AT_TIMESTAMP, which appears to be a valid option based on the types. This will cause an error when running synth... and you cannot provide required startingPositionTimestamp as it is not on the interfaces.

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.142.1

Framework Version

No response

Node.js Version

20

OS

macos

Language

TypeScript

Language Version

5.4

Other information

using latest aws-cdk-lib version

[ashishdhingra]

@justin-masse Good afternoon. Thanks for opening the issue. If you refer the documentation for StartingPosition.AT_TIMESTAMP, it is only supported for Amazon Kinesis streams. Based on this limitation, if you refer documentation for KinesisEventSource > KinesisEventSourceProps, it does support startingPositionTimestamp property.

Thanks,
Ashish