حماية موارد الخلفية المخصّصة باستخدام App Check على منصات Apple

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do {
  let token = try await AppCheck.appCheck().token(forcingRefresh: false)

  // Get the raw App Check token string.
  let tokenString = token.token

  // Include the App Check token with requests to your server.
  let url = URL(string: "https://yourbackend.example.com/yourApiEndpoint")!
  var request = URLRequest(url: url)
  request.httpMethod = "GET"
  request.setValue(tokenString, forHTTPHeaderField: "X-Firebase-AppCheck")

  let task = URLSession.shared.dataTask(with: request) { data, response, error in
      // Handle response from your backend.
  }
  task.resume()
} catch(let error) {
  print("Unable to retrieve App Check token: \(error)")
  return
}

[[FIRAppCheck appCheck] tokenForcingRefresh:NO
                                 completion:^(FIRAppCheckToken * _Nullable token,
                                              NSError * _Nullable error) {
    if (error != nil) {
        // Handle any errors if the token was not retrieved.
        NSLog(@"Unable to retrieve App Check token: %@", error);
        return;
    }
    if (token == nil) {
        NSLog(@"Unable to retrieve App Check token.");
        return;
    }

    // Get the raw App Check token string.
    NSString *tokenString = token.token;

    // Include the App Check token with requests to your server.
    NSURL *url = [[NSURL alloc] initWithString:@"https://yourbackend.example.com/yourApiEndpoint"];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
    [request setHTTPMethod:@"GET"];
    [request setValue:tokenString forHTTPHeaderField:@"X-Firebase-AppCheck"];

    NSURLSessionDataTask *task =
        [[NSURLSession sharedSession] dataTaskWithRequest:request
                                        completionHandler:^(NSData * _Nullable data,
                                                            NSURLResponse * _Nullable response,
                                                            NSError * _Nullable error) {
        // Handle response from your backend.
    }];
    [task resume];
}];

AppCheck.appCheck().limitedUseToken() { token, error in
  // ...
}

[[FIRAppCheck appCheck] limitedUseTokenWithCompletion:^(FIRAppCheckToken * _Nullable token,
                                                        NSError * _Nullable error) {
    // ...
}];