aws cdk 没有为 lambda 创建 s3 触发器

Question

I am trying to create a s3 trigger on a lambda using python cdk. I created lambda using cdk but it's working fine and other then that many other resources aswell created using cdk but on lambda it's not creating trigger my code is this:

import aws_cdk.aws_lambda_event_sources as eventsources
import aws_cdk.aws_s3 as s3


    my_lambda.add_event_source(
        eventsources.S3EventSource(
            mybucket,
            events=[s3.EventType.OBJECT_CREATED], 
            filters=[
                s3.NotificationKeyFilter(
                    prefix="start", 
                    suffix="mysufix.csv",
                ),
            ],
        )
    )

Answer 1

Try to create an instance of eventsources as S3EventSource is a class and addEventSource method needs IEventSource as source param

import aws_cdk.aws_lambda_event_sources as eventsources
import aws_cdk.aws_s3 as s3


my_lambda.add_event_source(
    new eventsources.S3EventSource(
        mybucket,
        events=[s3.EventType.OBJECT_CREATED], 
        filters=[
            s3.NotificationKeyFilter(
                prefix="start", 
                suffix="mysufix.csv",
            ),
        ],
    )
)

Docs: https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_lambda_event_sources.S3EventSource.html