Error ActionController::RoutingError: No route matches [GET] \"/omniauth/pincode\"

[Mohammed-Elias]

rails (5.1.4)
devise (4.3.0)
devise_token_auth (0.1.42)
ruby (2.4.0p0)

Gemfile

gem 'rails', '~> 5.1.4'
gem 'pg', '~> 0.18'
gem 'puma', '~> 3.7'
gem 'omniauth'
gem 'devise_token_auth'
gem 'twilio-ruby'

group :development, :test do
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
  gem 'rspec-rails'
  gem 'shoulda-matchers'
  gem 'factory_bot_rails'
  gem 'faker'
end

I'm building a rails API, and through adding twilio-ruby gem to verify phone number of Customer, I added a new action to RegistrationsController after overriding it and this controller look like:

class Api::V1::Customers::RegistrationsController < DeviseTokenAuth::RegistrationsController

   def verify
     @customer = Customer.find_by(mobile_phone_number: request.headers[:mobile_phone_number])
     @customer.verify(request.headers[:pin_code])
     if @customer.verified
       render json: {message: 'You are verified'}
     else
       render json: {message: 'You have entered wrong pin code'}
     end
   end
end

and Customer model is

class Customer < ActiveRecord::Base
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable,
         :confirmable, :omniauthable
  include DeviseTokenAuth::Concerns::User

  def verify(entered_pin)
    update(verified: true) if self.pin_code == entered_pin
  end
end

routes.rb file is

namespace 'api' do
  namespace 'v1' do

    mount_devise_token_auth_for 'Customer', at: 'customer/auth', controllers: {
      registrations: 'api/v1/customers/registrations',
      sessions: 'api/v1/customers/sessions'
    }
 end
end

then I add these lines underneath the above block in routes.rb to get the access to the new action verify:

devise_scope :customer do
  get "api/v1/customer/auth/pincode" => "api/v1/customers/registrations#verify"
end

After I ran rails routes, I got api_v1_customer_auth_pincode GET /api/v1/customer/auth/pincode(.:format) api/v1/customers/registrations#verify

and after running rails routes I got this:

new_api_v1_customer_session GET      /api/v1/customer/auth/sign_in(.:format)            api/v1/customers/sessions#new
api_v1_customer_session POST     /api/v1/customer/auth/sign_in(.:format)            api/v1/customers/sessions#create
destroy_api_v1_customer_session DELETE   /api/v1/customer/auth/sign_out(.:format)           api/v1/customers/sessions#destroy
new_api_v1_customer_password GET      /api/v1/customer/auth/password/new(.:format)       devise_token_auth/passwords#new
edit_api_v1_customer_password GET      /api/v1/customer/auth/password/edit(.:format)      devise_token_auth/passwords#edit
api_v1_customer_password PATCH    /api/v1/customer/auth/password(.:format)           devise_token_auth/passwords#update
                                PUT      /api/v1/customer/auth/password(.:format)           devise_token_auth/passwords#update
                                POST     /api/v1/customer/auth/password(.:format)           devise_token_auth/passwords#create
cancel_api_v1_customer_registration GET      /api/v1/customer/auth/cancel(.:format)             api/v1/customers/registrations#cancel
new_api_v1_customer_registration GET      /api/v1/customer/auth/sign_up(.:format)            api/v1/customers/registrations#new
edit_api_v1_customer_registration GET      /api/v1/customer/auth/edit(.:format)               api/v1/customers/registrations#edit
api_v1_customer_registration PATCH    /api/v1/customer/auth(.:format)                    api/v1/customers/registrations#update
                                PUT      /api/v1/customer/auth(.:format)                    api/v1/customers/registrations#update
                                DELETE   /api/v1/customer/auth(.:format)                    api/v1/customers/registrations#destroy
                                POST     /api/v1/customer/auth(.:format)                    api/v1/customers/registrations#create
new_api_v1_customer_confirmation GET      /api/v1/customer/auth/confirmation/new(.:format)   devise_token_auth/confirmations#new
api_v1_customer_confirmation GET      /api/v1/customer/auth/confirmation(.:format)       devise_token_auth/confirmations#show
                                POST     /api/v1/customer/auth/confirmation(.:format)       devise_token_auth/confirmations#create
api_v1_customer_auth_validate_token GET      /api/v1/customer/auth/validate_token(.:format)     devise_token_auth/token_validations#validate_token
api_v1_customer_auth_failure GET      /api/v1/customer/auth/failure(.:format)            devise_token_auth/omniauth_callbacks#omniauth_failure
                                GET      /api/v1/customer/auth/:provider/callback(.:format) devise_token_auth/omniauth_callbacks#omniauth_success
                                GET|POST /omniauth/:provider/callback(.:format)             devise_token_auth/omniauth_callbacks#redirect_callbacks
                                GET|POST /omniauth/failure(.:format)                        devise_token_auth/omniauth_callbacks#omniauth_failure
                                GET      /api/v1/customer/auth/:provider(.:format)          redirect(301)
api_v1_customer_auth_pincode GET     /api/v1/customer/auth/pincode(.:format)            api/v1/customers/registrations#verify

The problem is each time I try to access http://localhost:3000/api/v1/customer/auth/pincode
I got this error in rails stack trace is

 Started GET "/api/v1/customer/auth/pincode" for 127.0.0.1 at 2018-01-04 15:53:59 +0300
 (0.8ms)  SELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY 
 "schema_migrations"."version" ASC Started GET "/omniauth/pincode?
 namespace_name=api_v1&resource_class=Customer" for 127.0.0.1 at 2018-01-04 15:53:59 +0300

  ActionController::RoutingError (No route matches [GET] "/omniauth/pincode"):

I don't understand what's going on!
Why omniauth is got the error ?
So any explanation!

[zachfeldman]

@Mohammed-Eliass your error makes sense because there is no route for omniauth/pincode, only /api/v1/customer/auth/pincode.