在 Ruby 上访问 Google 通讯录 API

问题描述

我无法访问 Google Contacts API.

I'm struggling to access the Google Contacts API.

首先我尝试了 google-api-ruby-client gem，但结果是 不支持 Contacts API.

First I tried the google-api-ruby-client gem but it turned out that it does not support the Contacts API.

下一个镜头是 google_contacts_api gem 但我很难获得 oauth_access_token_for_user 和 oAuth2 gem.在遵循 oAuth2 说明 时，我不知道要在 authorization_code_value 中输入什么 和 Basic some_password.

Next shot was the google_contacts_api gem but I struggle to get a oauth_access_token_for_user with the oAuth2 gem. When following the oAuth2 instructions I don't know what to put in authorization_code_value and Basic some_password.

我尝试了以下方法:

require 'oauth2'
client = OAuth2::Client.new(ENV['GOOGLE_CLIENT_ID'], ENV['GOOGLE_CLIENT_SECRET'], :site => 'http://localhost:9292')
=> #<OAuth2::Client:0x007fcf88938758 @id="blabla.apps.googleusercontent.com", @secret="blabla", @site="http://localhost:9292", @options={:authorize_url=>"/oauth/authorize", :token_url=>"/oauth/token", :token_method=>:post, :connection_opts=>{}, :connection_build=>nil, :max_redirects=>5, :raise_errors=>true}>

client.auth_code.authorize_url(:redirect_uri => 'http://localhost:9292')
=> "http://localhost:9292/oauth/authorize?client_id=blabla.apps.googleusercontent.com&redirect_uri=http%3A%2F%2Flocalhost%3A9292&response_type=code"

token = client.auth_code.get_token('authorization_code_value', :redirect_uri => 'http://localhost:9292', :headers => {'Authorization' => 'Basic some_password'})
=> Faraday::ConnectionFailed: Connection refused - connect(2) for "localhost" port 9292

如果有人能给我详细的逐步说明如何访问 API，我将不胜感激.

I would appreciate if someone could give me detailed step by step instructions how to access the API.

推荐答案

确保您的应用程序设置正确，并且您已在 Google 开发者控制台.然后试试这个:

Make sure your app is set up properly and that you've enabled the Contacts API in the Google Developers Console. Then try this:

CLIENT_ID = '?????.apps.googleusercontent.com'
CLIENT_SECRET = 'your_secret'
REDIRECT_URI = 'your_redirect_uri'
client = OAuth2::Client.new(CLIENT_ID, CLIENT_SECRET,
           site: 'https://accounts.google.com',
           token_url: '/o/oauth2/token',
           authorize_url: '/o/oauth2/auth')
url = client.auth_code.authorize_url(scope: "https://www.google.com/m8/feeds",
           redirect_uri: REDIRECT_URI)

在浏览器中访问 url 并登录 Google.之后您重定向到的 url 将包含参数 code 中的令牌.它看起来像这样(下一行不是您运行的代码):

Visit url in your browser and log in to Google. The url you are redirected to afterwards will contain the token in the parameter code. It will look like this (this next line is not code you run):

actual_redirect_url = "#{REDIRECT_URI}?code=#{code}"

从重定向url解析代码，然后

Parse the code from the redirect url, then

token = client.auth_code.get_token(code, :redirect_uri => REDIRECT_URI)

编辑

有人在评论中询问如何将令牌传递给 google_contacts_api 库.(我写了图书馆，所以我应该知道！)

Someone asked in the comments how to pass the token to the google_contacts_api library. (I wrote the library, so I should know!)

token 在这个例子中是一个 OAuth2::AccessToken 对象.你所要做的就是将它传递给构造函数:

token is an OAuth2::AccessToken object in this example. All you have to do is pass it to the constructor:

user = GoogleContactsApi::User.new(token)

更明确地说，构造函数接受令牌对象，而不是字符串.

To be extra clear, the constructor accepts the token object, not a string.

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