Devise, OmniAuth & Facebook: “Not found. Authentication passthru.”

Question

Trying to follow along with https://github.com/plataformatec/devise/wiki/OmniAuth:-Overview and I\'m stumped.

I\'ve got config.omniauth :facebook, ENV[\'FB_AP

Answer 1

Try setting omniauth_path_prefix in devise initializer (config/initializers/devise.rb) file.

For User class:

config.omniauth_path_prefix = "/users/auth"

For other class (e.g. when you use Account not User):

config.omniauth_path_prefix = "/accounts/auth"

Same thing with translated routes (my case). I've tranlated 'users' into 'blabla'. To have it working I had to set prefix to "/blabla/auth". (Works for only one locale!)

Answer 2

Also make sure you have added a route to the OmniauthCallbacksController:

devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" }

and that you have added the update to the devise declaration in your User model:

devise :omniauthable, :omniauth_providers => [:facebook]

Answer 3

Make sure to write the same spelling of providers on both user.rb and devise.rb like -

user.rb

devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable, :confirmable, :omniauthable, omniauth_providers: [:google_oauth2, :facebook], authentication_keys: [:login], reset_password_keys: [:login], confirmation_keys: [:login]

devise.rb

config.omniauth :google_oauth2, ENV["GOOGLE_OAUTH_CLIENT_ID"], ENV["GOOGLE_CLIENT_SECRET"],   
{
    scope: 'userinfo.email, userinfo.profile',
    prompt: 'select_account',
    image_aspect_ratio: 'square',
    image_size: 50
  }

config.omniauth :facebook, ENV['FACEBOOK_APP_ID'], ENV['FACEBOOK_APP_SECRET'], scope: 'email', info_fields: 'email, first_name, last_name', callback_url: "#{ENV["HOST_URL"]}/users/auth/facebook/callback"