I am currently implementing an authentication function using ASWebAuthenticationSession to log in with my Instagram account. I set a custom scheme for the callbackURLScheme, but In the Instagram redirect URL I was told I can't use a custom scheme. What should I do with the callbackURLScheme of the ASWebAuthenticationSession in this case?

I'm currently implementing a function in SwiftUI to log in with my Instagram account. It's not working, I'm creating a Firebase Auth function and it comes back to the redirect URL. This may happen if browser sessionStorage is inaccessible or accidentally cleared. This may happen if browser sessionStorage is inaccessible or accidentally cleared. I get this error. I can't implement it. I have tried various methods, but all have failed. If anyone knows how to do this, please help. import SwiftUI import AuthenticationServices import FirebaseAuth struct InstagramLoginView: View { var body: some View { VStack { Text("Login with Instagram") // タイトル Button(action: { // ボタンが押された時にInstagramのログイン処理を開始 InstagramLoginHelper().startInstagramLogin() }) { Text("Login with Instagram") .padding() .background(Color.blue) .foregroundColor(.white) .cornerRadius(8) } } } } class InstagramLoginHelper: NSObject, ASWebAuthenticationPresentationContextProviding { func startInstagramLogin() { let clientID = "XXXXXXXXXXXX" let redirectURI = "https://XXXXXXXXXXX.firebaseapp.com/__/auth/handler" let authURL = "https://api.instagram.com/oauth/authorize?client_id=\(clientID)&redirect_uri=\(redirectURI)&scope=user_profile,user_media&response_type=code" let schem = "XXXXXXXXXXXX" if let url = URL(string: authURL) { let session = ASWebAuthenticationSession(url: url, callbackURLScheme: schem) { callbackURL, error in if let error = error { print("Error during authentication: \(error.localizedDescription)") return } if let callbackURL = callbackURL, let code = URLComponents(string: callbackURL.absoluteString)?.queryItems?.first(where: { $0.name == "code" })?.value { // 認証コードを使ってFirebaseでログインする self.loginWithInstagram(authCode: code) } } session.presentationContextProvider = self session.start() } } func loginWithInstagram(authCode: String) { // Firebaseのauthインスタンスを取得 let auth = Auth.auth() // InstagramのOAuthプロバイダを使用する let provider = OAuthProvider(providerID: "instagram.com") // Instagramの認証コードを使って、プロバイダの認証資格情報を生成 provider.getCredentialWith(nil) { credential, error in if let error = error { print("Error during authentication: \(error.localizedDescription)") return } if let credential = credential { // Firebaseにログイン auth.signIn(with: credential) { authResult, error in if let error = error { print("Error during Firebase authentication: \(error.localizedDescription)") } else { print("Successfully authenticated with Firebase.") } } } } } // ASWebAuthenticationPresentationContextProvidingの実装 func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor { return UIApplication.shared.windows.first { $0.isKeyWindow } ?? ASPresentationAnchor() } } #Preview { InstagramLoginView() }

I am currently using the ability to log in with my Instagram account using ASWebAuthenticationSession and it is not working! I filled in the URL directly and there was no problem on the web, but when I run it in SwiftUI in Xcode, it doesn't work and Error: The operation couldn’t be completed. (com.apple.AuthenticationServices.WebAuthenticationSession error 2.) I get this error. I was told that I need a custom scheme to return to mobile, but the Instagram redirect URL says no custom scheme. What should I do? IDs and URLs are placed under assumption. I have no idea since this is my first implementation. Should I send the scheme URL from the website to mobile once using Django or something else? import SwiftUI import AuthenticationServices struct InstagramLoginView: View { @State private var authSession: ASWebAuthenticationSession? @State private var token: String = "" @State private var showAlert: Bool = false @State private var alertMessage: String = "" var body: some View { VStack { Text("Instagram Login") .font(.largeTitle) .padding() Button(action: { startInstagramLogin() }) { Text("Login with Instagram") .padding() .background(Color.blue) .foregroundColor(.white) .cornerRadius(10) } if !token.isEmpty { Text("Token: \(token)") .padding() } } .alert(isPresented: $showAlert) { Alert(title: Text("Error"), message: Text(alertMessage), dismissButton: .default(Text("OK"))) } } func startInstagramLogin() { let clientID = "XXXXXXXXXX" // Instagram client ID let redirectURI = "https://example.com" // Instagram Redirect URI guard let authURL = URL(string: "https://api.instagram.com/oauth/authorize?client_id=\(clientID)&redirect_uri=\(redirectURI)&scope=user_profile,user_media&response_type=code") else { print("Invalid URL") return } authSession = ASWebAuthenticationSession(url: authURL, callbackURLScheme: "customscheme") { callbackURL, error in if let error = error { print("Error: \(error.localizedDescription)") return } guard let callbackURL = callbackURL else { print("Invalid callback URL") return } if let code = URLComponents(string: callbackURL.absoluteString)?.queryItems?.first(where: { $0.name == "code" })?.value { print("Authorization code: \(code)") getInstagramAccessToken(authCode: code) } } authSession?.start() } func getInstagramAccessToken(authCode: String) { let tokenURL = "https://api.instagram.com/oauth/access_token" var request = URLRequest(url: URL(string: tokenURL)!) request.httpMethod = "POST" let clientID = "XXXXXXXXXXXX" let clientSecret = "XXXXXXXXXXXXXX" // Instagram clientSecret let redirectURI = "https://example.com/" let params = "client_id=\(clientID)&client_secret=\(clientSecret)&grant_type=authorization_code&redirect_uri=\(redirectURI)&code=\(authCode)" request.httpBody = params.data(using: .utf8) request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type") URLSession.shared.dataTask(with: request) { data, response, error in if let error = error { print("Error: \(error.localizedDescription)") return } guard let data = data else { print("No data") return } if let jsonResponse = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any], let accessToken = jsonResponse["access_token"] as? String { print("Access Token: \(accessToken)") // ここでアクセストークンを使用してInstagram APIにアクセスする } else { print("Failed to get access token") } }.resume() } } #Preview { InstagramLoginView() }

Hello. I am submitting an app review to deploy my app. I always Guideline 2.1 - Performance - App Completeness We found that your in-app purchase products exhibited one or more bugs which create a poor user experience. Specifically, no action took place when we attempted to make a purchase. Please review the details and resources below and complete the next steps. Review device details: Device type: iPad Air (5th generation) OS version: iOS 17.5.1 I am failing here. It works fine in the Xcode simulator, but I don't know exactly why I get an error in this part of the review process. I asked the reviewer a question and did not get a response. Does anyone know why this problem occurs? If anyone knows the cause, I would like to know!