Example of refreshing the access token

[TylerLeonhardt]

This example is a good start, but it's missing a few, IMO, crucial things.

1. The access token that comes from the OAuth request in the settings page eventually expires, forcing the user to have to re-auth in the settings. This is not ideal. I know there's a concept of a refresh token and it'd be awesome to get an example of that!

2. (lower pri) an example POST request to the fitbit's API. I learned after a whole lot of digging that the POST body data is passed in as query params instead of in a JSON body. That wasn't really exactly clear in the docs and this didn't have an example of POSTing so I was kind of left in the dark until I found the swagger spec.

I'm trying to submit an app for the challenge deadline on Friday and would love to have #1 in my app!

[TylerLeonhardt]

p.s. Is there a fitbit slack group like there was a Pebble slack group? :)

[orviwan]

@tylerl0706 Thanks for the feedback! There is a community Discord, not Slack. https://dev.fitbit.com/discord