public async Task <Stream> GetOneDriveContentsAsStreamAsync(OneDriveAttribute attr)
{
Stream response;
// How to download from OneDrive: https://developer.microsoft.com/en-us/graph/docs/api-reference/v1.0/api/item_downloadcontent
// GET https://graph.microsoft.com/v1.0/me/drive/root:/test1/hi.txt:/content HTTP/1.1
bool isShare = attr.Path.StartsWith("https://");
if (isShare)
{
// TODO: Move this to GraphServiceClient
// Download via a Share URL
var shareToken = UrlToSharingToken(attr.Path);
response = await _client.GetOneDriveContentStreamFromShareAsync(shareToken);
}
else
{
try
{
// Retrieve stream of OneDrive item
response = await _client.GetOneDriveContentStreamAsync(attr.Path);
} catch
{
//File does not exist, so create new memory stream
response = new MemoryStream();
}
}
return(ConvertStream(response, attr));
}
