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javaamazon-web-servicesamazon-dynamodbdynamodb-queries

DynamoDB Streams events for a specific column change

As per the official documentation https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Streams.html

Any change to any column of the dynamoDb creates a stream record in the DynamoDB streams. I have one use case where I would require the stream/event to be created or triggered only if a specific column of the item is changed and not other columns. Is there a way to do this via config in DynamoDB? Or do I have to filter the events once they are already created, to look for that specific column change?

Solution

  • You will have to filter the events from the stream. I recommend you take a look at AWS Lambda event source filtering as this will do what you want and the filtering is free. You only pay when your Lambda function is invoked.