bitmoji | Figuring out the bitmoji API | REST library

I have been trying to use LoginKit from Snapchat to connect a user's bitmoji and Snap info, however after allowing access on Snapchat, it just stays on a yellow screen, not redirecting to my app. I have verified that the info.plist is properly set up and that the Redirect URL is the same as in the SnapKit Dev portal. I believe it may have something to do with this bit of code in the AppDelegate, which is based off of what Snapchat suggests in their development guide:

I'm trying to use SnapKit, specifically Login Kit, and when I try to send the user to Snapchat to log in, I get the message in the debugger :

I am playing around with Snap.svg and jQuery a little bit, and I am creating this bitmoji and trying to make his eyes follow the mouse cursor.

It's all going pretty well except for the eyes. They are transforming and rotating when moving the cursor but not 100% correctly and I can't figure out why.

Here is my code in a JSFiddle: http://jsfiddle.net/bmp5j4x9/1/

Resize the result box, make it bigger and move around your mouse, I guess you'll see what I mean. Or take a look at http://dante-c.be.

This is the jQuery part:

I'm trying to open the Bitmoji app from within my own app in iOS using UIApplication.shared.open. When I use just "https://www.bitmoji.com/" URL, the Bitmoji app does not intercept the call and it opens the URL in Safari.

Tried "bitmoji://" as the URL scheme, but this does not work. Then I googled for the bitmoji app URL scheme, but without success. Can somebody help?

I am trying to use Snapchat's Login Kit to allow users to login with Snapchat, but their documentation gives me an error.

Copying the documentation gets me a "Type '[AnyHashable : Any]?' has no subscript members. The error happens on the "let data = " line. If I force unwrap resources, then the error moves to the next line

I'm trying out Snpachat's SnapKit login api, and I've setup my project as described in the documentation/guide. I've allowed the use of all the scopes, i.e. external id, display name and bitmoji in the dashboard and added the required fields in the .plist of my app.

The login and authentication proceed normal and return successfully, but when I try to fetch user data, that request fails every time with the SCOAuth2ClientErrorDomain error.

I'm using the snippet provided within the guide (although that code has a typo and doesn't build as is so I doubt in the validity of that code):