For the extra credit part of the workshop, specifically https://data-processing.serverlessworkshops.io/stream-processing/05-extra-credit/05-01-eh-cp-bb.html the provided lambda code does not work. The lambda executes once and no retries occur. The earlier section with just bisection works and I can see the calls made to the lambda and the records written to DDB. I am not certain, but it might be due to the place where batchItemFailures is being returned (i.e. not in the main handler).
For the extra credit part of the workshop, specifically https://data-processing.serverlessworkshops.io/stream-processing/05-extra-credit/05-01-eh-cp-bb.html the provided lambda code does not work. The lambda executes once and no retries occur. The earlier section with just bisection works and I can see the calls made to the lambda and the records written to DDB. I am not certain, but it might be due to the place where
batchItemFailuresis being returned (i.e. not in the main handler).