如何解决“ OmniAuth :: Strategies :: OAuth2 :: CallbackError”错误？

Question

I am using Omniauth in a Rails application for login, my omniauth.rb, is as show below:

OmniAuth.config.logger = Rails.logger

Rails.application.config.middleware.use OmniAuth::Builder do
   provider :facebook, 'xxxxxxx', 'xxxxxxx'
   provider :google_oauth2, 'xxxxxxxxx','xxxxxxxx'
end

When a user attempts to login (via Facebook or Goolge) and denies permissions, get the following error:

 OmniAuth::Strategies::OAuth2::CallbackError 

with this parameters:

{"error"=>"access_denied",
 "error_code"=>"200",
 "error_description"=>"Permissions error",
 "error_reason"=>"user_denied",
 "state"=>"60daee5f78d9cc28972050ae8ca8f950bb4ed5958302bcea"}

if the user accept, no problem and everything works fine.

I've tried some of the possible solutions related with this error, and listed on this website, but none solved my problem. For example:

How to rescue OmniAuth::Strategies::OAuth2::CallbackError?

Omniauth+facebook error when trying to cancel the popup

Please, I need help to solve this problem.

Answer 1

there is another thread (posted here) with a solution that could help you. But it always redirects to a general failure page for every type of error; meaning that regardless of the provider, it will redirect to the same error page.

How to rescue OmniAuth::Strategies::OAuth2::CallbackError?

Answer 2

如果将Devise与OmniAuth一起使用，则需要跳过多余的omniauth.rb初始化程序，而只需在initializers / devise.rb内部配置config.provider“ KEY”，“ SECRET”，然后继续执行即可。