为上传的内容提供了无效的MIME类型（Google Drive，iOS）

Question

我正尝试使用files.insert为Google Drive创建CSV文件。不幸的是，我有两个问题。请帮我解决它。

我的项目信息：

• 语言：Objective-C的

• 波德：GoogleAPIClientForREST /驱动

1 /我找不到框架files.insert。所以，我使用files.create。我对吗？

2/

Accepted Media MIME types: */*

它做工精细当我使用mime类型： '文本/ CSV'。但它看起来像这样：

而且，我需要这样的事情，以确保客户的要求，便于编辑

的所以，我改变mime类型为“应用程序/越南盾。谷歌-apps.spreadsheet”。这使我的错误：

An error occurred: Error Domain=com.google.GTLRErrorObjectDomain Code=400 "(Invalid MIME type provided for the uploaded content.)" UserInfo={error=Invalid MIME type provided for the uploaded content., GTLRStructuredError=GTLRErrorObject 0x7fc77c808840: {message:"Invalid MIME type provided for the uploaded content." errors:[1] code:400}, NSLocalizedFailureReason=(Invalid MIME type provided for the uploaded content.)} 

这里是我的代码：

GTLRDrive_File *metadata = [GTLRDrive_File object]; 
metadata.name = @"export.csv"; 
NSString *content = @"a,b,c\nx,y,z"; 
NSData *data = [content dataUsingEncoding:NSUTF8StringEncoding]; 
GTLRUploadParameters *uploadParameters = [GTLRUploadParameters uploadParametersWithData:data MIMEType:@"application/vnd.google-apps.spreadsheet"]; 

GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject:metadata 
                uploadParameters:uploadParameters]; 

[self.service executeQuery:query completionHandler:^(GTLRServiceTicket *ticket, 
                GTLRDrive_File *updatedFile, 
                NSError *error) { 
}]; 

这个代码。有时与我的谷歌帐户的工作和GTLRDriveQuery_FilesUpdate工作这么好！

File GTLRDrive_File 0x7fee0587b970: {mimeType:"application/vnd.google-apps.spreadsheet" id:"..." kind:"drive#file" name:"export.csv"} 

Answer 1

我找到了我的问题的答案。

在这种情况下，我应该调用GTLRDriveQuery_FilesCreate，uploadParameters无法创建“application/vnd.google-apps.spreadsheet”。

GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject:metadata uploadParameters:nil]; 

之后，我将调用带有文件标识符的GTLRDriveQuery_FilesUpdate并将新数据上传到我的新文件。

这里是我的代码：

- (void)createCSVFileWithRealm { 
GTLRDrive_File *metadata = [GTLRDrive_File object]; 
metadata.name = @"export.csv"; 
metadata.mimeType = @"application/vnd.google-apps.spreadsheet"; 

GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject:metadata 
                   uploadParameters:nil]; 

[self.service executeQuery:query completionHandler:^(GTLRServiceTicket *ticket, 
                GTLRDrive_File *updatedFile, 
                NSError *error) { 
    if (error == nil) { 
     // Save id and call upload data 
    } 
}]; 

}

- (void)uploadData { 
GTLRDrive_File *metadata = [GTLRDrive_File object]; 

NSString *content = @"a,b,c\nx,y,z"; 
NSData *data = [content dataUsingEncoding:NSUTF8StringEncoding]; 
GTLRUploadParameters *uploadParameters = [GTLRUploadParameters uploadParametersWithData:data MIMEType:@"application/vnd.google-apps.spreadsheet"]; 
GTLRDriveQuery_FilesUpdate *query = [GTLRDriveQuery_FilesUpdate queryWithObject:metadata 
                  fileId:exportFile.identifier 
                uploadParameters:uploadParameters]; 

[self.service executeQuery:query completionHandler:^(GTLRServiceTicket *ticket, 
                GTLRDrive_File *updatedFile, 
                NSError *error) { 
    if (error == nil) { 
     NSLog(@"File %@", updatedFile); 
    } else { 
     NSLog(@"An error occurred: %@", error); 
    } 
}]; 

}

Answer 2

什么工作对我来说是设置在上传参数的 “源” MIME类型，并设置“目标”MIME键入File对象：

NSData *data = [csv dataUsingEncoding: NSUTF8StringEncoding]; 
NSString *mimeType = @"text/csv"; 
NSString *convertToMimeType = @"application/vnd.google-apps.spreadsheet"; 


GTLRDrive_File *newFile = [GTLRDrive_File object]; 
newFile.name = fileName; 
if (convertToMimeType != nil) newFile.mimeType = convertToMimeType; 
if (parentItem != nil) newFile.parents = [NSArray arrayWithObject: parentItem.identifier]; 
GTLRUploadParameters *uploadParameters = [GTLRUploadParameters uploadParametersWithData: data MIMEType: mimeType]; 
GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject: newFile uploadParameters: uploadParameters];