document recommendation for client reuse to avoid IMDS rate limiting

[aaroncowie]

Describe the issue

As per #4867 (comment) I understand that we are meant to hoist all client instances to the top of our applications and reuse them to avoid redundant retrieval of credentials per usage (e.g. from IMDS, which has rate limits).

In that thread there were multiple requests for this to be documented since it is not intuitive and RanVaknin agreed, apparently it was added to some internal backlog.

I just want to check in to see if this can be added to the getting started guide, if it's not already somewhere else

Thanks!

Links

https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/introduction/#getting-started

[aBurmeseDev]

Hi @aaroncowie - thanks for reaching out.

I'd agree adding this to our API reference or maybe Developer Guide might be helpful. I'll check with the team to check if there was any ongoing task or work that was done.

[aBurmeseDev]

It looks like this was added to our README.md. I'll see where we could fit this into our getting started page.