/// <summary>
/// Downloads a file from a drive
/// </summary>
/// <param name="fileId">Id of file</param>
/// <returns>PGDriveResult with a FileDownloadResult which contains memory stream of downloaded file, mimeType
/// and it's extension
/// </returns>
public PGDriveResult <FileDownloadResult> DownloadFile(string fileId)
{
PGDriveResult <FileDownloadResult> pGDriveResult = new PGDriveResult <FileDownloadResult>();
try
{
var fileRequest = driveService.Files.Get(fileId);
fileRequest.Fields = DefaultFileFieldsOnResponse;
var fileResponse = fileRequest.Execute();
if (fileResponse.MimeType.Contains("folder"))
{
throw CustomExceptions.isAFolder(fileId, driveService);
}
var request = driveService.Files.Get(fileId);
var stream = new System.IO.MemoryStream();
request.Download(stream);
if (stream.Length != 0)
{
string mimeType = fileResponse.MimeType;
string ext = GetDefaultExtension(mimeType);
FileDownloadResult fileDownloadResult = new FileDownloadResult(stream, mimeType, ext);
pGDriveResult.SetResponseBody(fileDownloadResult);
}
else
{
pGDriveResult.SetResponseBody(null);
pGDriveResult.SetIsSuccess(false);
}
return(pGDriveResult);
}
catch (Google.GoogleApiException exception)
{
pGDriveResult.InitializeError(exception);
return(pGDriveResult);
}
}