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November 25, 2023 23:39
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AWS Cloudformation Example of Event Source Mapping Filter from DynamoDB Table Kinesis Stream by Keyword
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| EventSourceMapping: | |
| Type: AWS::Lambda::EventSourceMapping | |
| DependsOn: | |
| - DLQ | |
| - DestinationLambdaLogicalFunctionName | |
| Properties: | |
| EventSourceArn: Stream.Arn | |
| StartingPosition: "TRIM_HORIZON" | |
| FilterCriteria: | |
| Filters: | |
| - Pattern: "{\"dynamodb\":{\"NewImage\":{\"DataId\":{\"SomeText\"}}}}" | |
| DestinationConfig: | |
| OnFailure: | |
| Destination: !GetAtt DLQ.arn | |
| MaximumRetryAttempts: 3 | |
| BisectBatchOnFucntionError: true | |
| BatchSize: batchSize | |
| MaximumBatchingWindowInSeconds: seconds |
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Example cloudformation code for a Kinesis Stream Event Source to Lambda, filtering data by key word. Failure to invoke lambda will land the data in DLQ. Must adjust BatchSize and Batching Window base on data volumn.
Here's link to the full AWS documentation.