I am using TwitterKit and Firebase to allow a user to login using Twitter. The first time I attempt to login with Twitter it fails with error:
[TwitterCore] Cannot verify session credentials. 2018-07-11 13:57:20.999365-0400 social_notes[6794:1892888] [TwitterKit] did encounter error with message "Failed to save session": Error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost." UserInfo={NSUnderlyingError=0x1c044dcb0 {Error Domain=kCFErrorDomainCFNetwork Code=-1005 "(null)" UserInfo={_kCFStreamErrorCodeKey=57, _kCFStreamErrorDomainKey=1}}, NSErrorFailingURLStringKey=https://api.twitter.com/1.1/account/verify_credentials.json, NSErrorFailingURLKey=https://api.twitter.com/1.1/account/verify_credentials.json, _kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=57, NSLocalizedDescription=The network connection was lost.} 2018-07-11 13:57:21.413753-0400 social_notes[6794:1892888] [TwitterKit] did encounter error with message "Error obtaining user auth token.": Error Domain=TWTRLogInErrorDomain Code=-1 "Callback URL not approved for this client application. Approved callback URLs can be adjusted in your application settings" UserInfo={NSLocalizedDescription=Callback URL not approved for this client application. Approved callback URLs can be adjusted in your application settings} Twitter Login Error: Request failed: forbidden (403)
But then if I just try to login with Twitter a second time, it works without issue.
Info.plist
<dict>
<key>CFBundleURLTypes</key>
<array>
<dict>
<key>CFBundleURLSchemes</key>
<array>
<string>twitterkit-XXX</string>
</array>
</dict>
</array>
<key>LSApplicationQueriesSchemes</key>
<array>
<string>twitter</string>
<string>twitterauth</string>
</array>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
</dict>
App Delegate
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
window = UIWindow(frame: UIScreen.main.bounds)
window?.makeKeyAndVisible()
window?.rootViewController = UINavigationController(rootViewController: ViewController())
FirebaseApp.configure()
Twitter.sharedInstance().start(withConsumerKey:"XXX", consumerSecret:"XXX")
return true
}
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
return Twitter.sharedInstance().application(app, open: url, options: options)
}
Twitter Login Button Code
let twitterLoginBtn = TWTRLogInButton { (session, err) in
if let err = err {
print("Twitter Login Error: \(String.init(describing: err.localizedDescription))")
return
}
guard let token = session?.authToken else { return }
guard let secret = session?.authTokenSecret else { return }
let credential = TwitterAuthProvider.credential(withToken: token, secret: secret)
Auth.auth().signIn(with: credential, completion: { (user, err) in
etc etc....