[Bug]: Event listener on .once is called multiple times

[schaeferto]

Describe the bug

When registering an event listener on a new consumer object using .once(), this listener is called multiple times.

Your minimal, reproducible example

https://stackblitz.com/edit/nestjs-typescript-starter-agfsxk?file=src/app.controller.ts

Steps to reproduce

Watch the console log statements.

Expected behavior

The event listener should only be called once.

How often does this bug happen?

Every time

Screenshots or Videos

No response

Platform

• OS: mac
• node: 16.7

Package version

v7.0.3

AWS SDK version

v3.316.0

Additional context

No response

[nicholasgriffintn]

Thanks for the issue and the reproduction, super helpful.

I'll take a look into this and get back the reason this might be happening.

[schaeferto]

Perfect. Thanks for your help!

[nicholasgriffintn]

This has been resolved in the version 7.1.0-canary.2:

https://stackblitz.com/edit/nestjs-typescript-starter-e4tyij?file=package.json

I don't know when 7.1.0 will be fully released, but the plan is to finish up just a couple more bits and then it will be released, the canary version should be perfectly fine to use in the meantime if this is an important issue for you.

[github-actions]

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