I have an Lambda which listens to Standard SQS , Do I need to handle duplicate messages while listening in Lambda as SQS guarantees at least once delivery. Are there chances of messages duplicating.
Yes, there is a chance of duplicate messages with SQS Standard queues. You will need to handle that in your code. Alternately, you can use a SQS FIFO queue. More information is in our documentation.
Depending on the programming language you are using, you can use the Lambda Power Tools to handle idempotency for you.
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