GTMOAuth2Authentication Not Working - youtube

Question

I'm trying to use Google's OAuth2 and YouTube APIs. The OAuth returns GTMOAuth2Authentication object that you then use to make requests to services like YouTube. My login works fine, and when I manually pass the authentication object, I can make requests.
However, I should also be able to access the authentication object via keychain, and I receive a valid object, but if I try to use it to make requests, I cannot. I keep getting the following error: "The operation couldn’t be completed. (com.google.GTMHTTPFetcher error -1.)" I'd appreciate it if someone could point out my mistake. I'm testing on a real iPhone 5s.
Authentication Code:
GTMOAuth2ViewControllerTouch * viewController = [[GTMOAuth2ViewControllerTouch alloc]
initWithScope:scope
clientID:kGoogleClientID
clientSecret:kGoogleClientSecret
keychainItemName:kGoogleKeychainItemName
delegate:self
finishedSelector:#selector(viewController:
finishedWithAuth:
error:)];
[self.navigationController pushViewController:viewController animated:YES];
Authentication Completion Handler:
- (void)viewController:(GTMOAuth2ViewControllerTouch *)viewController
finishedWithAuth:(GTMOAuth2Authentication *)auth
error:(NSError *)error {
NSLog(#"%s", __PRETTY_FUNCTION__);
if (error != nil) {
NSLog(#"%s %#", __PRETTY_FUNCTION__, error.localizedDescription);
return;
}
MediaGETWrapper *getWrapper = [MediaGETWrapper sharedWrapper];
getWrapper.googleAuth = auth; // passing auth directly without keychain
[getWrapper youTubeSubscriptionsWithSuccess:nil failure:nil];
YouTube Client Initialization:
self.youTube = [GTLServiceYouTube new];
GTMOAuth2Authentication *auth = [GTMOAuth2Authentication new];
[GTMOAuth2ViewControllerTouch
authorizeFromKeychainForName:kGoogleKeychainItemName
authentication:auth
error:nil];
self.youTube.authorizer = auth;
Request:
- (void)youTubeSubscriptionsWithSuccess:(void(^)(NSArray *subscriptions))success
failure:(void(^)(NSError *error))error {
NSLog(#"%s", __PRETTY_FUNCTION__);
// self.youTube.authorizer = self.googleAuth; // If uncommented, works!
GTLQueryYouTube *query = [GTLQueryYouTube queryForSubscriptionsListWithPart:#"snippet"];
query.mine = YES;
[self.youTube
executeQuery:query
completionHandler:^(GTLServiceTicket *ticket,
GTLYouTubeChannelListResponse *channelList,
NSError *error) {
if (error != nil) {
NSLog(#"%s %#", __PRETTY_FUNCTION__, error.localizedDescription); // fails here
return;
}
for (GTLYouTubeSubscription *channel in channelList) {
NSLog(#"%#", channel.snippet.title);
}
}];
}

Answer 1

I couldn't find a direct fix, but you can do this:
Get the access token from a GTMOAuth2Authentication object via:
auth.accessToken
Then set the access token wherever you want to make requests.
To refresh the token, use this method:
[auth
authorizeRequest:nil // just to refresh
completionHandler:^(NSError *error) {
// your code here
}];