Google Oauth授权失败

我试图在rails应用中使用'google-api-ruby-client'gem来请求用户访问其Google云端硬盘。我成功导航到用户点击接受的请求权限页面。我在控制器中有一个回调函数，用于捕获用户单击接受时返回的代码。我然后试图获取访问令牌。这是我被挂断的地方。我收到此错误：Google Oauth授权失败

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我的电流控制器的代码如下所示：

require 'google/api_client' 

class GoogleDriveController < ApplicationController 

    def initialize 
    @client = Google::APIClient.new(:application_name => '????', :application_version => '1.0.0') 
    end 

    def auth 
    @client.authorization.client_id = ENV["GOOGLE_CLIENT_ID"] 
    @client.authorization.client_secret = ENV["GOOGLE_CLIENT_SECRET"] 
    @client.authorization.redirect_uri = ENV["GOOGLE_REDIRECT_URI"] 
    @client.authorization.scope =  'https://www.googleapis.com/auth/drive' 
    authorize_url = @client.authorization.authorization_uri 
    puts "https://#{authorize_url.host}#{authorize_url.path}?#{authorize_url.query}" 
    render json: {google_auth_url: "https://#{authorize_url.host}#{authorize_url.path}?#{authorize_url.query}"} 
    end 

    def callback 
    @client.authorization.code = params[:code] if params[:code] 
    access_token = @client.authorization.fetch_access_token! 
    @drive = @client.discovered_api('drive', 'v2') 
    end 

end

任何帮助或在正确的方向轻推将不胜感激。

谢谢！

来源

2015-06-16 user3600230