使用Google API将数据上传到Google云端存储会返回“错误请求：密钥无效”

Question

我使用Google Cloud Storage API for obj-c将数据插入存储桶，但我收到了400服务器错误：

{原因：＆＃34; keyInvalid＆＃34;消息：＆＃34;错误请求＆＃34;域：＆＃34; usageLimits＆＃34;}

我使用服务帐户身份验证方法，将GTLServiceStorage的APIKey属性设置为开发人员控制台生成的密钥值，据我所知，我不需要OAuth2身份验证的访问令牌？

我已经为各个领域尝试了几种组合而没有运气。代码如下所示：

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

GTLUploadParameters *uploadParam 
  = [GTLUploadParameters uploadParametersWithData:data MIMEType:@"audio/mp4"];

GTLStorageObject *storageObj = [GTLStorageObject object];
storageObj.name = @"file_name"

GTLStorageObjectAccessControl *objAccessControl 
  = [GTLStorageObjectAccessControl new];

objAccessControl.entity = @"allUsers";
objAccessControl.email = @"5942472xxxxxxx@developer.gserviceaccount.com";
objAccessControl.role = @"OWNER";

storageObj.acl = @[objAccessControl];

GTLQueryStorage *query 
  = [GTLQueryStorage queryForObjectsInsertWithObject:storageObj 
                                              bucket:@"my_bucket"                 
                                    uploadParameters:uploadParam];

GTLServiceTicket *ticket 
   = [_serviceStorage executeQuery:query 
                 completionHandler:^(GTLServiceTicket *ticket, 
                                     id object, 
                                     NSError *error) {        
  // error: {reason:"keyInvalid" message:"Bad Request" domain:"usageLimits"}
  }
}];

ticket.uploadProgressBlock ...