如何在Google Apps中获取用户的电子邮件地址？
问题描述：
如果我的 google plus 应用中具有该用户的访问令牌，如何获取该用户的电子邮件地址？
How can I get the user's email address if I have the access token of that user in my google plus apps?
答
获取用户的电子邮件地址需要其他授权。您需要添加 https://www.googleapis.com/auth/userinfo.email作用域，然后可以使用userinfo端点来请求信息。有关更多信息，请参见 https://developers.google.com/accounts/docs/OAuth2
Getting the user's email address requires additional authorization. You will need to add the https://www.googleapis.com/auth/userinfo.email scope and can then use the userinfo endpoint to request the information. See https://developers.google.com/accounts/docs/OAuth2 for more information.