C#：如何使用 Google Drive API v3 - Windows 控制台应用程序将文件上传到特定文件夹

Question

我正在尝试使用 C# 将图像上传到我的谷歌驱动器。如果我想上传到根目录，此代码可以正常工作。 但我想将图像上传到云端硬盘中的特定文件夹。 需要建议。

private static void UploadBasicImage(string file_path,DriveService service)
    {
        var fileMetadata = new Google.Apis.Drive.v3.Data.File();
        fileMetadata.Name = Path.GetFileName(path);
        fileMetadata.MimeType = "image/png";
        FilesResource.CreateMediaUpload request;
        using (var stream = new System.IO.FileStream(path,System.IO.FileMode.Open))
        {
            request = service.Files.Create(fileMetadata, stream, fileMetadata.MimeType);
            request.Fields = "id";
            request.Upload();
        }
        var file = request.ResponseBody;
    }

Answer 1

这是我刚刚想出的解决方案：
完整详情在这里

        public static void FileUploadInFolder(string folderId, string path, DriveService service)
    {
        var FileMetaData = new Google.Apis.Drive.v3.Data.File()
        {
            Name = Path.GetFileName(path),
            MimeType = GetMimeType(path),
            //id of parent folder 
            Parents = new List<string>
                {
                    folderId
                }
        };
        FilesResource.CreateMediaUpload request;
        //create stream and upload
        using (var stream = new System.IO.FileStream(path, System.IO.FileMode.Open))
        {
            request = service.Files.Create(FileMetaData, stream, FileMetaData.MimeType);
            request.Fields = "id";
            request.Upload();
        }
        var file1 = request.ResponseBody;
    }

Answer 2

我只想添加响应中缺少的 GetMimeType(path) 的代码：

private string GetMimeType(string filePath)
{
    string mimeType = "application/unknown";
    string ext = System.IO.Path.GetExtension(filePath).ToLower();
    Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);
    if (regKey != null && regKey.GetValue("Content Type") != null)
        mimeType = regKey.GetValue("Content Type").ToString();
    return mimeType;
}

此线程中还有其他解决方案： 从文件扩展名获取 MIME 类型