I'm using the YouTube API V3 in an MVC web application. The aim is for my web users to upload a video to MY YouTube channel using MY OAuth credentials. After the user uploads their video to my web server, I need the upload between my web server and YouTube to be automated with no user intervention from myself.
My (first draft) code is below. My questions are:
UPDATE - Resolved below. Whenever I try to delete a video I get an 'Unauthorised' error. When I check the scope of the token it only has 'YoutubeUpload' and not 'Youtube'. Is there any way to resolve this?
I created an OAuth client credential of type 'Other' and exported the JSON (I specified 'Other' instead of 'Web Application' - is this correct?): https://console.developers.google.com/apis/credentials
When I try and upload a video, I get redirected to 'Authorise the App' saying "My Company wants access to your YouTube Channel." The trouble is, i DONT want to access anyone's channel. I just want them to be able to upload to MY channel. Is this possible, and if so how?
public async Task<string> UploadVideoToYouTube(Stream filestream)
{
UserCredential credential;
string cs = HttpContext.Current.Server.MapPath("~/client_secrets.json");
using (var stream = new FileStream(cs, FileMode.Open, FileAccess.Read))
{
credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
// This OAuth 2.0 access scope allows an application to upload files to the
// authenticated user's YouTube channel, but doesn't allow other types of access.
new[] { YouTubeService.Scope.Youtube,
YouTubeService.Scope.YoutubeUpload },
"user",
CancellationToken.None
);
}
//check scope with this URL
//https://www.googleapis.com/oauth2/v1/tokeninfo?access_token={ACCESS-TOKEN}
// This bit checks if the token is out of date,
// and refreshes the access token using the refresh token.
if (credential.Token.IsExpired(SystemClock.Default))
{
if (!await credential.RefreshTokenAsync(CancellationToken.None))
{
Console.WriteLine("No valid refresh token.");
}
}
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
});
var video = new Video();
video.Snippet = new VideoSnippet();
video.Snippet.Title = "Default Video Title";
video.Snippet.Description = "Default Video Description";
video.Snippet.Tags = new string[] { "tag1", "tag2" };
//https://gist.github.com/dgp/1b24bf2961521bd75d6c
//26 - How-to & Style
video.Snippet.CategoryId = "26"; // See https://developers.google.com/youtube/v3/docs/videoCategories/list
video.Status = new VideoStatus();
video.Status.PrivacyStatus = "private"; // "unlisted" or "private" or "public"
var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", filestream, "video/*");
videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;
await videosInsertRequest.UploadAsync();
return videosInsertRequest.ResponseBody.Id;
}
void videosInsertRequest_ResponseReceived(Video video)
{
//http://www.youtube.com/watch?v={VIDEO-ID}
Console.WriteLine("Video id '{0}' was successfully uploaded.", video.Id);
}
public async Task DeleteVideoFromYouTube(string id)
{
UserCredential credential;
string cs = HttpContext.Current.Server.MapPath("~/client_secrets.json");
using (var stream = new FileStream(cs, FileMode.Open, FileAccess.Read))
{
credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
// This OAuth 2.0 access scope allows an application to upload files to the
// authenticated user's YouTube channel, but doesn't allow other types of access.
new[] { YouTubeService.Scope.Youtube,
YouTubeService.Scope.YoutubeUpload },
"user",
CancellationToken.None
);
}
// This bit checks if the token is out of date,
// and refreshes the access token using the refresh token.
if (credential.Token.IsExpired(SystemClock.Default))
{
if (!await credential.RefreshTokenAsync(CancellationToken.None))
{
Console.WriteLine("No valid refresh token.");
}
}
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
});
var videosDeleteRequest = youtubeService.Videos.Delete(id);
await videosDeleteRequest.ExecuteAsync();
}
void videosInsertRequest_ProgressChanged(IUploadProgress progress)
{
switch (progress.Status)
{
case UploadStatus.Uploading:
Console.WriteLine("{0} bytes sent.", progress.BytesSent);
break;
case UploadStatus.Failed:
Console.WriteLine("An error prevented the upload from completing.\n{0}", progress.Exception);
break;
}
}
UPDATE Resolution to the first question was to go here: https://myaccount.google.com/permissions and delete the authorised YouTube app. It must have been authorised previously without the YouTubeService.Scope.Youtube scope.
However, when I deleted the account and ran my web application again, it prompted me to authenticate again using OAuth. I don't want it to do this. I want it to automatically authenticate as me (for all users). Which is my second question that remains unanswered....
