上传Google云端存储iOS

Question

我正在尝试将图片上传到Google云端存储空间几天.我尝试通过此链接https://code.google.com/p/google-api-objectivec-client/wiki/Introduction使用适用于Objective-C的Google API客户端库.

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;
};

使用该代码时,错误始终显示为"操作无法完成.(访问未配置.请使用Google Developers Console激活项目的API)".我不知道为什么会出现错误,而我已启用与Google云端存储和Google云端存储JSON API等存储相关的所有服务,并更改了存储分区的ACL,以便互联网上的所有用户都可以写入/上传到其中.

我还在上传前尝试过身份验证过程.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;
};

通过该实现,我得到了不同的错误,"操作无法完成.(权限不足)".

我该怎么办才能成功上传图片？任何帮助将不胜感激.

非常感谢你.

Answer 1

最后我找到了答案.以下是身份验证的代码:

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,如果您要在未经身份验证的情况下上传,则必须为服务器应用程序分配API Key with Key,而不是Key for iOS应用程序

_serviceStorage.APIKey = KEY_SERVER_APPLICATION;

我不知道为什么上传过程成功使用Key for server应用程序,而这是一个iOS应用程序