A story that I was addicted to calling Lambda from AWS Lambda.

How to call Lambda from Lambda (Python)

import boto3

def lambda_handler(event, context):
    clientLambda = boto3.client("lambda")
    clientLambda.invoke(
        FunctionName="recieveMail",
        InvocationType="Event",
        Payload=json.dumps(event)
    )

I call it from boto3's lambda client with the ʻinvoke () method. I was addicted to using ʻInvocation Type because I didn't understand it well.

This guy receives either ʻEvent | RequestResponse, ʻEvent is asynchronous, RequestResponse is synchronous Each works.

I was thinking of processing a large amount of mail at the SES Event, and when I ran into a problem that I couldn't handle at all by selecting RequestResponse appropriately, there was an explanation at the (?) Mark.

It was me that was bad. That's the story.

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