PlaylistItems: list

Zwraca kolekcję elementów playlisty, które pasują do parametrów żądania do interfejsu API. Możesz pobrać wszystkie elementy playlisty, które się na niej znajdują, albo jeden lub więcej elementów, podając ich unikalne identyfikatory.

Wpływ na limit: wywołanie tej metody ma koszt limitu wynoszący 1 jednostkę.

Prośba

GET https://www.googleapis.com/youtube/v3/playlistItems

Odpowiedź

{
  "kind": "youtube#playlistItemListResponse",
  "etag": etag,
  "nextPageToken": string,
  "prevPageToken": string,
  "pageInfo": {
    "totalResults": integer,
    "resultsPerPage": integer
  },
  "items": [
    playlistItem Resource
  ]
}

Przykłady

Uwaga: poniższe przykłady kodu mogą nie obejmować wszystkich obsługiwanych języków programowania. Listę obsługiwanych języków znajdziesz w dokumentacji bibliotek klienta.

package main

import (
	"fmt"
	"log"

	"google.golang.org/api/youtube/v3"
)

// Retrieve playlistItems in the specified playlist
func playlistItemsList(service *youtube.Service, part string, playlistId string, pageToken string) *youtube.PlaylistItemListResponse {
	call := service.PlaylistItems.List(part)
	call = call.PlaylistId(playlistId)
	if pageToken != "" {
		call = call.PageToken(pageToken)
	}
	response, err := call.Do()
	handleError(err, "")
	return response
}

// Retrieve resource for the authenticated user's channel
func channelsListMine(service *youtube.Service, part string) *youtube.ChannelListResponse {
	call := service.Channels.List(part)
	call = call.Mine(true)
	response, err := call.Do()
	handleError(err, "")
	return response
}

func main() {
	client := getClient(youtube.YoutubeReadonlyScope)
	service, err := youtube.New(client)
	
	if err != nil {
		log.Fatalf("Error creating YouTube client: %v", err)
	}

	response := channelsListMine(service, "contentDetails")

	for _, channel := range response.Items {
		playlistId := channel.ContentDetails.RelatedPlaylists.Uploads
		
		// Print the playlist ID for the list of uploaded videos.
		fmt.Printf("Videos in list %s\r\n", playlistId)

		nextPageToken := ""
		for {
			// Retrieve next set of items in the playlist.
			playlistResponse := playlistItemsList(service, "snippet", playlistId, nextPageToken)
			
			for _, playlistItem := range playlistResponse.Items {
				title := playlistItem.Snippet.Title
				videoId := playlistItem.Snippet.ResourceId.VideoId
				fmt.Printf("%v, (%v)\r\n", title, videoId)
			}

			// Set the token to retrieve the next page of results
			// or exit the loop if all results have been retrieved.
			nextPageToken = playlistResponse.NextPageToken
			if nextPageToken == "" {
				break
			}
			fmt.Println()
		}
	}
}
my_uploads.go

using System;
using System.IO;
using System.Reflection;
using System.Threading;
using System.Threading.Tasks;

using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using Google.Apis.Upload;
using Google.Apis.Util.Store;
using Google.Apis.YouTube.v3;
using Google.Apis.YouTube.v3.Data;

namespace Google.Apis.YouTube.Samples
{
  /// <summary>
  /// YouTube Data API v3 sample: retrieve my uploads.
  /// Relies on the Google APIs Client Library for .NET, v1.7.0 or higher.
  /// See https://developers.google.com/api-client-library/dotnet/get_started
  /// </summary>
  internal class MyUploads
  {
    [STAThread]
    static void Main(string[] args)
    {
      Console.WriteLine("YouTube Data API: My Uploads");
      Console.WriteLine("============================");

      try
      {
        new MyUploads().Run().Wait();
      }
      catch (AggregateException ex)
      {
        foreach (var e in ex.InnerExceptions)
        {
          Console.WriteLine("Error: " + e.Message);
        }
      }

      Console.WriteLine("Press any key to continue...");
      Console.ReadKey();
    }

    private async Task Run()
    {
      UserCredential credential;
      using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
      {
        credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
            GoogleClientSecrets.Load(stream).Secrets,
            // This OAuth 2.0 access scope allows for read-only access to the authenticated 
            // user's account, but not other types of account access.
            new[] { YouTubeService.Scope.YoutubeReadonly },
            "user",
            CancellationToken.None,
            new FileDataStore(this.GetType().ToString())
        );
      }

      var youtubeService = new YouTubeService(new BaseClientService.Initializer()
      {
        HttpClientInitializer = credential,
        ApplicationName = this.GetType().ToString()
      });

      var channelsListRequest = youtubeService.Channels.List("contentDetails");
      channelsListRequest.Mine = true;

      // Retrieve the contentDetails part of the channel resource for the authenticated user's channel.
      var channelsListResponse = await channelsListRequest.ExecuteAsync();

      foreach (var channel in channelsListResponse.Items)
      {
        // From the API response, extract the playlist ID that identifies the list
        // of videos uploaded to the authenticated user's channel.
        var uploadsListId = channel.ContentDetails.RelatedPlaylists.Uploads;

        Console.WriteLine("Videos in list {0}", uploadsListId);

        var nextPageToken = "";
        while (nextPageToken != null)
        {
          var playlistItemsListRequest = youtubeService.PlaylistItems.List("snippet");
          playlistItemsListRequest.PlaylistId = uploadsListId;
          playlistItemsListRequest.MaxResults = 50;
          playlistItemsListRequest.PageToken = nextPageToken;

          // Retrieve the list of videos uploaded to the authenticated user's channel.
          var playlistItemsListResponse = await playlistItemsListRequest.ExecuteAsync();

          foreach (var playlistItem in playlistItemsListResponse.Items)
          {
            // Print information about each video.
            Console.WriteLine("{0} ({1})", playlistItem.Snippet.Title, playlistItem.Snippet.ResourceId.VideoId);
          }

          nextPageToken = playlistItemsListResponse.NextPageToken;
        }
      }
    }
  }
}
MyUploads.cs

#!/usr/bin/ruby

require 'rubygems'
gem 'google-api-client', '>0.7'
require 'google/api_client'
require 'google/api_client/client_secrets'
require 'google/api_client/auth/file_storage'
require 'google/api_client/auth/installed_app'

# This OAuth 2.0 access scope allows for read-only access to the authenticated
# user's account, but not other types of account access.
YOUTUBE_READONLY_SCOPE = 'https://www.googleapis.com/auth/youtube.readonly'
YOUTUBE_API_SERVICE_NAME = 'youtube'
YOUTUBE_API_VERSION = 'v3'

def get_authenticated_service
  client = Google::APIClient.new(
    :application_name => $PROGRAM_NAME,
    :application_version => '1.0.0'
  )
  youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)

  file_storage = Google::APIClient::FileStorage.new("#{$PROGRAM_NAME}-oauth2.json")
  if file_storage.authorization.nil?
    client_secrets = Google::APIClient::ClientSecrets.load
    flow = Google::APIClient::InstalledAppFlow.new(
      :client_id => client_secrets.client_id,
      :client_secret => client_secrets.client_secret,
      :scope => [YOUTUBE_READONLY_SCOPE]
    )
    client.authorization = flow.authorize(file_storage)
  else
    client.authorization = file_storage.authorization
  end

  return client, youtube
end

def main
  client, youtube = get_authenticated_service

  begin
    # Retrieve the "contentDetails" part of the channel resource for the
    # authenticated user's channel.
    channels_response = client.execute!(
      :api_method => youtube.channels.list,
      :parameters => {
        :mine => true,
        :part => 'contentDetails'
      }
    )

    channels_response.data.items.each do |channel|
      # From the API response, extract the playlist ID that identifies the list
      # of videos uploaded to the authenticated user's channel.
      uploads_list_id = channel['contentDetails']['relatedPlaylists']['uploads']

      # Retrieve the list of videos uploaded to the authenticated user's channel.
      next_page_token = ''
      until next_page_token.nil?
        playlistitems_response = client.execute!(
          :api_method => youtube.playlist_items.list,
          :parameters => {
            :playlistId => uploads_list_id,
            :part => 'snippet',
            :maxResults => 50,
            :pageToken => next_page_token
          }
        )

        puts "Videos in list #{uploads_list_id}"

        # Print information about each video.
        playlistitems_response.data.items.each do |playlist_item|
          title = playlist_item['snippet']['title']
          video_id = playlist_item['snippet']['resourceId']['videoId']

          puts "#{title} (#{video_id})"
        end

        next_page_token = playlistitems_response.next_page_token
      end

      puts
    end
  rescue Google::APIClient::TransmissionError => e
    puts e.result.body
  end
end

main
my_uploads.rb

Błędy

W tabeli poniżej znajdziesz komunikaty o błędach, które interfejs API może zwrócić w odpowiedzi na wywołanie tej metody. Więcej szczegółów znajdziesz w dokumentacji komunikatów o błędach.

Wypróbuj

Użyj interfejsu APIs Explorer, aby wywołać ten interfejs API i wyświetlić żądanie oraz odpowiedź interfejsu API.