Youtube api 如何使用YouTube API（V3）将缩略图上传到YouTube频道

我想使用YouTube API（V3）向YouTube频道添加缩略图

例如：左上角的图像可在此处找到：

列出频道资源：

缩略图的路径存储在通道片段中

"snippet": {
"title": "HannahInJapana",
"description": "My name is Hannah and I am living in Osaka, Japan with my husband and daughter Ellie. Living and being a mom in a foreign country comes with both challenges and excitement. I hope to both share my experiences with you and meet people who are making their way in foreign countries with young children.",
"publishedAt": "2011-03-25T09:58:45.000Z",
"thumbnails": {
"default": {
"url": "https://yt3.ggpht.com/-DqmCXHftE-I/AAAAAAAAAAI/AAAAAAAAAAA/3k1uCwnmlu4/s88-c-k-no/photo.jpg"
},
"medium": {
"url": "https://yt3.ggpht.com/-DqmCXHftE-I/AAAAAAAAAAI/AAAAAAAAAAA/3k1uCwnmlu4/s240-c-k-no/photo.jpg"
},
"high": {
"url": "https://yt3.ggpht.com/-DqmCXHftE-I/AAAAAAAAAAI/AAAAAAAAAAA/3k1uCwnmlu4/s240-c-k-no/photo.jpg"
}
},

首先，我需要能够通过YouTube API上传我的缩略图图像，然后检索图像的URL，稍后我可以设置这些URL

例如：

    channel.Snippet.Thumbnails.Default.Url = "https://yt3.ggpht.com/-DqmCXHftE-I/AAAAAAAAAAI/AAAAAAAAAAA/3k1uCwnmlu4/s240-c-k-no/photo.jpg";
    channel.Snippet.Thumbnails.Default.Height = 120;
    channel.Snippet.Thumbnails.Default.Width = 800;

我的问题是YouTube API文档中没有任何地方说明如何上传频道缩略图

下面的文档说明了如何上传视频资源的缩略图，但没有提及频道

如何使用YouTube API（V3）上传频道缩略图

频道缩略图似乎链接到Google+帐户

我应该更新Google+个人资料图像吗

---

Google+API似乎不支持更新配置文件图像

更正：

youtube频道中的

频道标题配置文件图像

，例如

在

https://www.youtube.com/user/achanoi

与图像相同

在相应的Google Plus配置文件中找到，

https://plus.google.com/106231037176903967640/videos

如图所示，设置缩略图似乎并不简单 和

然而，来自的PUT请求：

PUThttps://www.googleapis.com/admin/directory/v1/users/userKey/photos/thumbnail

与：

够了

是：

根据等级库，通道对象具有：

{
 "kind": "youtube#channel",
 "etag": etag,
 "id": string,
 "image": {
  "bannerImageUrl": string,
  "bannerMobileImageUrl": string,
  "watchIconImageUrl": string,
  "trackingImageUrl": string,
  "bannerTabletLowImageUrl": string,
  "bannerTabletImageUrl": string,
  "bannerTabletHdImageUrl": string,
  "bannerTabletExtraHdImageUrl": string,
  "bannerMobileLowImageUrl": string,
  "bannerMobileMediumHdImageUrl": string,
  "bannerMobileHdImageUrl": string,
  "bannerMobileExtraHdImageUrl": string,
  "bannerTvImageUrl": string,
  "bannerTvLowImageUrl": string,
  "bannerTvMediumImageUrl": string,
  "bannerTvHighImageUrl": string,
  "bannerExternalUrl": string
 }
}

设置：

---

我不想设置横幅图像。我想设置频道右上角的小图像

{
 "kind": "youtube#channel",
 "etag": etag,
 "id": string,
 "image": {
  "bannerImageUrl": string,
  "bannerMobileImageUrl": string,
  "watchIconImageUrl": string,
  "trackingImageUrl": string,
  "bannerTabletLowImageUrl": string,
  "bannerTabletImageUrl": string,
  "bannerTabletHdImageUrl": string,
  "bannerTabletExtraHdImageUrl": string,
  "bannerMobileLowImageUrl": string,
  "bannerMobileMediumHdImageUrl": string,
  "bannerMobileHdImageUrl": string,
  "bannerMobileExtraHdImageUrl": string,
  "bannerTvImageUrl": string,
  "bannerTvLowImageUrl": string,
  "bannerTvMediumImageUrl": string,
  "bannerTvHighImageUrl": string,
  "bannerExternalUrl": string
 }
}

brandingSettings.image.bannerExternalUrl