amazon web services - What format is the the DLQ message to SNS from a Lambda's DLQ?

Question

I have the following flow

SNS_topic1 -> Lambda_1 -> SNS_topic2 ( via DLQ ) -> lambda_1

( basically trying to rerun failed lambda again) but on the 2nd execution i', getting the likes of

ERROR Invoke Error {"errorType":"TypeError","errorMessage":"Cannot read property 'toString' of undefined",..

( it's a Node lambda)

my guess is that the DLQ (SNS_topic2) part is wrapping the original event into something that my poor lambda_1 can't handle, but couldn't figure out what.. i was looking at Amazon SNS raw message delivery but apparently that is only relevant if the subscription is to

Kinesis Data Firehose, Amazon SQS, or HTTP/S endpoint

Is the solution a dedicated lambda_2 that would handle the wrapped message, or is there a way to reuse the lambda_1?

question from:https://stackoverflow.com/questions/65885751/what-format-is-the-the-dlq-message-to-sns-from-a-lambdas-dlq

Answer 1

Waitting for answers