Upload Google Cloud Storage iOS

Question

I\'m trying to upload image to Google Cloud Storage for a couple days. I tried to use Google APIs Client Library for Objective-C from this link https://code.google.com/p/google-

Answer 1

Finally I found the answer. Here is the code for authentication:

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];
                                                                                  });
                                                                              }];

and here is for uploading process:

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;
};

Or if you want to upload without authentication, you have to assign API Key with Key for server applications not Key for iOS applications

_serviceStorage.APIKey = KEY_SERVER_APPLICATION;

I don't know why the uploading process successful when using Key for server applications whereas this is an iOS Application