上传 Google Cloud Storage iOS

Question

我正在尝试将图片上传到 Google Cloud Storage 几天。 我尝试通过此链接https://code.google.com/p/google-api-objectivec-client/wiki/Introduction 使用 Google APIs Client Library for Objective-C。

这是我的代码实现：

_serviceStorage = [GTLServiceStorage new];
_serviceStorage.APIKey = API_KEY;
_serviceStorage.additionalHTTPHeaders = @{@"x-goog-project-id": PROJECT_ID};

GTLUploadParameters *uploadParam = [GTLUploadParameters uploadParametersWithData:_imageData MIMEType:@"image/jpeg"];
GTLStorageObject *storageObj = [GTLStorageObject object];

GTLQueryStorage *query = [GTLQueryStorage queryForObjectsInsertWithObject:storageObj bucket:BUCKET_NAME uploadParameters:uploadParam];
GTLServiceTicket *ticket = [_serviceStorage executeQuery:query delegate:self didFinishSelector:@selector(serviceTicket:finishedWithObject:error:)];

ticket.uploadProgressBlock = ^(GTLServiceTicket *ticket,
                               unsigned long long numberOfBytesRead,
                               unsigned long long dataLength) {
    self.progressView.progress = (float)numberOfBytesRead/(float)dataLength;
};

使用该代码，错误总是出现“操作无法完成。（访问未配置。请使用 Google Developers Console 为您的项目激活 API）”。我不知道为什么会出现错误，而我已经启用了所有与存储相关的服务，例如 Google Cloud Storage 和 Google Cloud Storage JSON API，并更改了存储桶的 ACL，以便互联网上的所有用户都可以写入/上传到其中。

我还尝试了上传前的身份验证过程。 viewDidLoad 上的代码：

_serviceStorage = [GTLServiceStorage new];
_serviceStorage.additionalHTTPHeaders = @{@"x-goog-project-id": PROJECT_ID};
GTMOAuth2ViewControllerTouch *oAuthVC = [[GTMOAuth2ViewControllerTouch alloc] initWithScope:kScope
                                                                                   clientID:kClientID
                                                                               clientSecret:kClientSecret
                                                                           keychainItemName:kKeychainItemName
                                                                          completionHandler:^(GTMOAuth2ViewControllerTouch *viewController, GTMOAuth2Authentication *auth, NSError *error) {
                                                                              dispatch_async(dispatch_get_main_queue(), ^{
                                                                                  [self dismissViewControllerAnimated:YES completion:nil];
                                                                              });
                                                                              auth.authorizationTokenKey = @"access_token";
                                                                              _serviceStorage.authorizer = auth;
                                                                          }];

dispatch_async(dispatch_get_main_queue(), ^{
    [self presentViewController:oAuthVC animated:YES completion:nil];
});

当用户按下上传按钮时：

GTLUploadParameters *uploadParam = [GTLUploadParameters uploadParametersWithData:_imageData MIMEType:@"image/jpeg"];
GTLStorageObject *storageObj = [GTLStorageObject object];

GTLQueryStorage *query = [GTLQueryStorage queryForObjectsInsertWithObject:storageObj bucket:BUCKET_NAME uploadParameters:uploadParam];
GTLServiceTicket *ticket = [_serviceStorage executeQuery:query delegate:self didFinishSelector:@selector(serviceTicket:finishedWithObject:error:)];

ticket.uploadProgressBlock = ^(GTLServiceTicket *ticket,
                               unsigned long long numberOfBytesRead,
                               unsigned long long dataLength) {
    self.progressView.progress = (float)numberOfBytesRead/(float)dataLength;
};

使用该实现我得到了不同的错误，“无法完成操作。（权限不足）”。

我应该怎么做才能成功上传图片？ 任何帮助将不胜感激。

非常感谢。

Answer 1

我终于找到了答案。以下是验证代码：

GTMOAuth2ViewControllerTouch *oAuthVC = [[GTMOAuth2ViewControllerTouch alloc] initWithScope:kGTLAuthScopeStorageDevstorageReadWrite
                                                                                       clientID:kClientID
                                                                                   clientSecret:kClientSecret
                                                                               keychainItemName:kKeychainItemName
                                                                              completionHandler:^(GTMOAuth2ViewControllerTouch *viewController, GTMOAuth2Authentication *auth, NSError *error) {

                                                                                  _accessToken = [NSString stringWithFormat:@"Bearer %@", [auth.parameters objectForKey:@"access_token"]];

                                                                                  _serviceStorage.additionalHTTPHeaders = @{@"x-goog-project-id": PROJECT_ID, @"Content-Type": @"application/json-rpc", @"Accept": @"application/json-rpc", @"Authorization": _accessToken};

                                                                                  _serviceStorage.authorizer = auth;


                                                                                  dispatch_async(dispatch_get_main_queue(), ^{
                                                                                      [self dismissViewControllerAnimated:YES completion:nil];
                                                                                  });
                                                                              }];

这里是上传过程：

GTLUploadParameters *uploadParam = [GTLUploadParameters uploadParametersWithData:_imageData MIMEType:@"image/jpeg"];
GTLStorageObject *storageObj = [GTLStorageObject object];
storageObj.name = FILE_NAME;

GTLQueryStorage *query = [GTLQueryStorage queryForObjectsInsertWithObject:storageObj bucket:BUCKET_NAME uploadParameters:uploadParam];
GTLServiceTicket *ticket = [_serviceStorage executeQuery:query completionHandler:^(GTLServiceTicket *ticket, id object, NSError *error) {
}];

ticket.uploadProgressBlock = ^(GTLServiceTicket *ticket,
                               unsigned long long numberOfBytesRead,
                               unsigned long long dataLength) {
    self.progressView.progress = (float)numberOfBytesRead/(float)dataLength;
};

或者，如果您想在没有身份验证的情况下上传，则必须使用 服务器应用程序的密钥而不是 iOS 应用程序的密钥

分配 API 密钥

_serviceStorage.APIKey = KEY_SERVER_APPLICATION;

我不知道为什么使用 Key for server applications 上传过程会成功，而这是一个 iOS 应用程序