Adding a retry for 429 errors in common meraki apis

[i3149]

See if we hit a 429 code and retry for up to 5 times before giving up.

[thezackm]

Do we know the impact of refreshing a 429 6 times over ~15sec? Wondering if there's a risk of throttling from Meraki?

Otherwise it looks great!

[i3149]

So this is why the golang API is annoying. I have an open issue with the swagger spec to expose the header which tells you when to retry. But it hasn't been looked at since August /shrug. Without this header, you're kinda just guessing on how long to wait for. Python defaults to a random number between 1 and 60 sec to sleep. Possibly we should do this? Agree, 5 is kinda a lot of retries, maybe make this 2?

[thezackm]

What about a hard cap? User-configurable 0-10 (default: 2) at 5 sec interval?

That would max at 55 seconds for folks trying the 60s poll interval.

[i3149]

Deal, will change over to this logic.