Cannot authenticate with iOS SDK

[ir_fuel]

I am using the Spotify iOS SDK and the Spotify app on my iPhone. iOS 15, Xcode 13.2, iPhone 13 Pro.

when calling

sessionManager.initiateSession(with: scope, options: .clientOnly)

I get redirected to the Spotify app where my authorization fails (I see a cross appearing), Spotify redirects back to my own app and the result url looks like this:

...://spotify-login-callback?error=unknown_error&error_description=An%20unknown%20error%20has%20occured&spotify_version=8.6.84.1353

I have no idea what this means.

I registered:

- the email address of my account

- the bundle id

- the callback url

in the app settings on the Spotify Developer website, and I have zero info on what to look for.

Any suggestion as to what to check?

[ir_fuel · Accepted solution]

It was a problem with the callback url.