Docs: Document how to return a empty response for Appsync Events

[Jimmy89]

What were you searching in the docs?

Currently, all examples within the Appsync Events documentation are 1:1 request & response mappings.
I would like to know how/what to return if for example propagate: true and:

1. I do not want to send a response at all (for example if the message can be ignored)
2. I want to send fewer responses than inserted requests.

This is not shown in the examples and I'm wondering whether I need to return something in a specific format for 'correct' handling.

Is this related to an existing documentation section?

No response

How can we improve?

Stated above

Got a suggestion in mind?

No response

Acknowledgment

• I understand the final update might be different from my proposed suggestion, or refused.

[dreamorosi]

Hi, thank you for opening this issue.

You are right, we don't show how to do this in the docs, but we should.

When using aggregate: true you can either omit one or more events from the response array to exclude them, or return an empty array [] to drop all of them.

I'm adding this section to the docs, with an example:

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[github-actions]

This is now released under v2.20.0 version!