Omniauth YouTube帮助解析响应



我正确设置了全身份验证,并且能够解析其他几个提供商响应,包括YouTube用户的一些属性,但我无法获取YouTube用户指向其频道的链接。这是响应的样子,我正在尝试获取最后一行的链接:

--- !ruby/hash:OmniAuth::AuthHash
provider: youtube
uid: http://gdata.youtube.com/feeds/api/users/DLjkduRouoiweRktkkl
info: !ruby/hash:OmniAuth::AuthHash::InfoHash
  uid: http://gdata.youtube.com/feeds/api/users/DLjkduRouoiweRktkkl
  nickname: Example User
  email: exampleuser@gmail.com
  first_name: Example
  last_name: User
  image: http://lh3.googleusercontent.com/-7vCkdsSDAfsU/AAAAAAAAAAA/kjRe3kjk/s88-c-k/photo.jpg
  description: 
  location: Example City CA, US
  channel_title: Example User
  subscribers_count: '66'
credentials: !ruby/hash:Hashie::Mash
  token: kh58.lkjASDF93-W2-ADFJkjfdo498_W8IWnjWTWY
  expires_at: 1354004818
  expires: true
extra: !ruby/hash:Hashie::Mash
  user_hash: !ruby/hash:Hashie::Mash
    xmlns: http://www.w3.org/2005/Atom
    xmlns$media: http://search.yahoo.com/mrss/
    xmlns$gd: http://schemas.google.com/g/2005
    xmlns$yt: http://gdata.youtube.com/schemas/2007
    id: !ruby/hash:Hashie::Mash
      $t: http://gdata.youtube.com/feeds/api/users/DLjkduRouoiweRktkkl
    published: !ruby/hash:Hashie::Mash
      $t: '2012-02-14T23:39:43.000Z'
    updated: !ruby/hash:Hashie::Mash
      $t: '2012-11-27T06:07:22.000Z'
    category:
    - !ruby/hash:Hashie::Mash
      scheme: http://schemas.google.com/g/2005#kind
      term: http://gdata.youtube.com/schemas/2007#userProfile
    title: !ruby/hash:Hashie::Mash
      $t: Example User
      type: text
    content: !ruby/hash:Hashie::Mash
      $t: Example user channel description
      type: text
    link:
    - !ruby/hash:Hashie::Mash
      rel: alternate
      type: text/html
      href: http://www.youtube.com/channel/kljasdSDAF98324
      .
      .
      .

我可以在我的用户模型中执行此操作,从而在顶部获得诸如"昵称"之类的内容:

def add_omniauth(auth)
  user.name = auth["info"]["nickname"]
end

但是我到底如何到达最底部的那个 URL?我试过了:

user.link = auth["extra"]["user_hash"]["link"]["href"]

但无济于事。作为一个轨道和红宝石新手,我很感激你的帮助。

好的,事实证明,链接:在 youtube 响应中是一个数组。您可以分辨,因为它没有作为哈希列在它旁边。我在这里和我的一个朋友交谈后了解到这一点。因此,为了在响应底部获得该链接:

self.url = auth["extra"]["user_hash"]["link"].first["href"]

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