Mã mẫu .NET

Các mã mẫu sau đây (sử dụng Thư viện ứng dụng API của Google cho .NET) có sẵn cho YouTube Content ID API.

Truy xuất kênh được quản lý của chủ sở hữu nội dung

Mã mẫu sau đây gọi phương thức channels.list của YouTube Data API để truy xuất danh sách các kênh do chủ sở hữu nội dung gửi yêu cầu API quản lý.

using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;

/*
 * External dependencies, OAuth 2.0 support, and core client libraries are at:
 *   https://developers.google.com/api-client-library/dotnet/apis/
 * Also see the Samples.zip file for the Google.Apis.Samples.Helper classes at:
 *   https://github.com/youtube/api-samples/tree/master/dotnet
 */

using DotNetOpenAuth.OAuth2;

using Google.Apis.Authentication;
using Google.Apis.Authentication.OAuth2;
using Google.Apis.Authentication.OAuth2.DotNetOpenAuth;
using Google.Apis.Samples.Helper;
using Google.Apis.Services;
using Google.Apis.Util;
using Google.Apis.Youtube.v3;
using Google.Apis.Youtube.v3.Data;

namespace dotnet
{
  class papi_my_managed_channels
  {
    static void Main(string[] args)
    {
      CommandLine.EnableExceptionHandling();
      CommandLine.DisplayGoogleSampleHeader("YouTube Partner API: My Managed Channels");

      var credentials = PromptingClientCredentials.EnsureFullClientCredentials();
      var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description)
      {
        ClientIdentifier = credentials.ClientId,
        ClientSecret = credentials.ClientSecret
      };
      var auth = new OAuth2Authenticator<NativeApplicationClient>(provider, GetAuthorization);

      var youtube = new YoutubeService(new BaseClientService.Initializer()
      {
        Authenticator = auth
      });

      var contentOwnerId = CommandLine.RequestUserInput<string>("Content Owner ID");

      var nextPageToken = "";
      while (nextPageToken != null)
      {
        var channelsListRequest = youtube.Channels.List("snippet");
        channelsListRequest.MaxResults = 50;
        channelsListRequest.ManagedByMe = true;
        channelsListRequest.OnBehalfOfContentOwner = contentOwnerId;
        channelsListRequest.PageToken = nextPageToken;

        var channelsListResponse = channelsListRequest.Fetch();

        foreach (var channelItem in channelsListResponse.Items)
        {
          CommandLine.WriteLine(String.Format("{0} ({1})", channelItem.Snippet.Title, channelItem.Id));
        }

        nextPageToken = channelsListResponse.NextPageToken;
      }
      
      CommandLine.PressAnyKeyToExit();
    }

    private static IAuthorizationState GetAuthorization(NativeApplicationClient client)
    {
      var storage = MethodBase.GetCurrentMethod().DeclaringType.ToString();
      var key = "storage_key";

      IAuthorizationState state = AuthorizationMgr.GetCachedRefreshToken(storage, key);
      if (state != null)
      {
        client.RefreshToken(state);
      }
      else
      {
        state = AuthorizationMgr.RequestNativeAuthorization(client, YoutubeService.Scopes.YoutubeReadonly.GetStringValue(), YoutubeService.Scopes.Youtubepartner.GetStringValue());
        AuthorizationMgr.SetCachedRefreshToken(storage, key, state);
      }

      return state;
    }
  }
}