OAuth2 using doorkeeper + AFOAuth2Manager

OAuth2_doorkeeper_AFOAuth2Manager

    /*
     https://github.com/gottfrois/doorkeeper-provider-app

     curl -i http://localhost:5100/oauth/token -F grant_type="password" -F username="john.smith@myapp.com" -F password="please" -F client_id="5c13e1fdd1007229121176ec372e5d9cda2698f37f243a3965c1176bce1ecd01" -F client_secret=","
     */
  
    NSString *kClientID = @"5c13e1fdd1007229121176ec372e5d9cda2698f37f243a3965c1176bce1ecd01";
    NSString *kClientSecret = @"40dfdc7edad96c219a8c948c228eda262a561774be74b8fc0996d9e57f62b771";
    NSURL *baseURL = [NSURL URLWithString:@"http://localhost:5100"];
    AFOAuth2Manager *OAuth2Manager =
    [[AFOAuth2Manager alloc] initWithBaseURL:baseURL
                                    clientID:kClientID
                                      secret:kClientSecret];

    
    NSDictionary *params = @{@"grant_type":@"password", @"username":@"john.smith@myapp.com", @"password":@"please"};
    [OAuth2Manager authenticateUsingOAuthWithURLString:@"/oauth/token"
                                            parameters:params
                                               success:^(AFOAuthCredential *credential) {
                                                   NSLog(@"Token: %@", credential.accessToken);
                                               }
                                               failure:^(NSError *error) {
                                                   NSLog(@"Error: %@", error);
                                               }];