Invalid App ID facebook, Omniauth rails 5.2.4 - ruby-on-rails

Question

When I sign in my app with facebook I am getting the error "Invalid App ID" even I verified my app id and it is correct.
what am I doing wrong in my code?
Here is my code:
devise.rb
config.omniauth :facebook, 'xxxxxxxxxxxx', 'xxxxxxxxxxxxxxxxxxxxx', token_params: { parse: :json }
omniauth.rb
Rails.application.config.middleware.use OmniAuth::Builder do
provider :developer unless Rails.env.production?
provider :facebook, ENV['FACEBOOK_APP_ID'], ENV['FACEBOOK_APP_SECRET']
end
routes.rb
Rails.application.routes.draw do
root to: 'surveys#index'
resources :surveys
devise_for :users, controllers: {
sessions: 'users/sessions',
confirmations: 'confirmations',
omniauth_callbacks: "users/omniauth_callbacks"
}
end
omniauth_callbacks_controller.rb
class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
def facebook
#user = User.from_omniauth(request.env["omniauth.auth"])
if #user.persisted?
sign_in_and_redirect #user, event: :authentication #this will throw if #user is not activated
set_flash_message(:notice, :success, kind: "Facebook") if is_navigational_format?
else
session["devise.facebook_data"] = request.env["omniauth.auth"]
redirect_to new_user_registration_url
end
end
def failure
redirect_to root_path
end
end
user.rb
class User < ApplicationRecord
has_many :surveys
mount_uploader :avatar, AvatarUploader
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :validatable, :confirmable,
:omniauthable, omniauth_providers: %i[facebook]
def self.from_omniauth(auth)
where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
user.email = auth.info.email
user.password = Devise.friendly_token[0, 20]
user.first_name = auth.info.first_name # assuming the user model has a name
# If you are using confirmable and the provider(s) you use validate emails,
# uncomment the line below to skip the confirmation emails.
user.skip_confirmation!
end
end
def self.new_with_session(params, session)
super.tap do |user|
if data = session["devise.facebook_data"] && session["devise.facebook_data"]["extra"]["raw_info"]
user.email = data["email"] if user.email.blank?
end
end
end
end
Thanks in advance

Answer 1

I think you are configuring omniauth two times. You should remove omniauth.rb under config/initializers folder.
Remember that config.omniauth adds omniauth provider middleware to your application. This means you should not add this provider middleware again in config/initializers/omniauth.rb as they'll clash with each other and result in always-failing authentication.
Check Devise wiki on Facebook omniauth for Facebook integration.