Foursquare provider

[kornifex]

The demo project was unable to find the correct header paths for the pods so I updated the project configuration to correct this.

[calebd]

Sweet thanks! I'll check it out in a bit 😄

[calebd]

Would you be ok if I changed the provider type from foursquare-web to just foursquare? The distinction is made for Facebook and Twitter since multiple providers for those types exist. I'm ok leaving the class names as they are, just wondering about the type since other developers will be typing that in to use it.

[kornifex]

Hey,
At first I named it foursquare but as it is authenticating the user via the webview, it should be name -web, don't you think?
@amarcadet and I took a look at Foursquare's oauth sdk and we think that it should be possible to create a provider that authenticates the user with Foursquare's custom URL scheme. If we manage to do it, then we could name it foursquare and this one could remain as a fallback.
The library seems to try to launch Foursquare through their URL scheme and then fallbacks to StoreKit.
It could be a great provider for SimpleAuth!

We'll take a better look at it and might try to implement it. :)

[calebd]

Yes that would be amazing! I didn't know they had SSO. I want to look into building providers like that for Dropbox and Facebook as well. Let me know if you need anything!

[calebd]

If you guys want to talk about the Foursquare SSO provider in particular, could we do it on #17? I think we'll need to add stuff to SimpleAuth/Core in order to support that.