omniauth-facebook request.env['omniauth.auth'] is nil [DUPLICATED] - ruby-on-rails

Question

I have been looking for the solution but got no any luck, have searched alot and tried many solutions found on stackoverflow or github issues... but still same error..
Referring to this post I tried, but still no luck..
here is the code I have in my app.
The Gem File
gem 'omniauth', '2.0.4'
gem 'omniauth-oauth2', '1.7.2'
gem 'omniauth-facebook', '9.0'
gem 'omniauth-rails_csrf_protection', '~> 1.0'
User Model:
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :validatable,
:trackable, :async,
:omniauthable, omniauth_providers: %i[facebook]
def self.from_omniauth(auth)
name_split = auth.info.name.split(" ")
user = User.where(email: auth.info.email).first
user ||= User.create!(provider: auth.provider, uid: auth.uid, last_name: name_split[0], first_name: name_split[1], email: auth.info.email, username: auth.info.email, password: Devise.friendly_token[0, 20])
user
end
Devise.rb:
config.omniauth :facebook, "APP_ID", "APP_SECRET", callback_path: "/api/v1/users/auth/facebook/callback"
The Routes File:
devise_for :users, controllers: { registrations: "api/v1/users/registrations", sessions: "api/v1/users/sessions", passwords: "api/v1/users/passwords", omniauth_callbacks: 'api/v1/users/omniauth_callbacks' }
The Omniauth Controller:
# frozen_string_literal: true
class Api::V1::Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
def passthru
Rails.logger.info "PassThru"
Rails.logger.debug request.env['omniauth.auth']
super
end
def facebook
Rails.logger.info "Check out this info!"
#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"].except(:extra) # Removing extra as it can overflow some session stores
redirect_to new_user_registration_url
end
end
def auth_data
Rails.logger.debug "Auth_DATA"
request.env["omniauth.auth"]
end
def failure
Rails.logger.info "FAIL"
Rails.logger.info root_path
redirect_to root_path
end
def callback
Rails.logger.info "HELLO"
end
end
The Omniauth middleware in initializers dir
Rails.application.config.middleware.use OmniAuth::Builder do
provider :facebook, "APP_ID", "APP_SECRET",
scope: 'email,user_birthday,read_stream', display: 'popup'
end
and in finally the link in the view file:
(link_to "Register with Facebook", user_facebook_omniauth_authorize_path, method: :post)
and this is the log when I click on the link in the view:
| I, [2022-01-24 13:30:12 #1] INFO -- : Started GET "/api/v1/users/auth/facebook" for 172.20.0.1 at 2022-01-24 13:30:12 +0000
| I, [2022-01-24 13:30:12 #1] INFO -- : PassThru
| D, [2022-01-24 13:30:12 #1] DEBUG -- : nil
I have made sure the FB credentials are right (APPID n SECRET) and FB app is not yet live so it can accept my localhost url as redirect url.
but still I can not understand what's the wrong I am doing here..
Kindly give your valuable feedback here... as I am also new to ruby...
I am running ruby#3.1.0 and rails#6.0.4.4
Thanks in advance.