refactor controller name

app/controllers/discourse_payments/payments_controller.rb

@@ -1,5 +1,5 @@
 module DiscoursePayments
-  class ChoiceController < ApplicationController
+  class PaymentsController < ApplicationController
     def index
       render json: {}
     end

config/routes.rb

@@ -1,4 +1,4 @@
 DiscoursePayments::Engine.routes.draw do
-  resources :choice, only: [:create]
-  get 'users/:username/payments' => 'choice#show'
+  resources :payments, only: [:create]
+  get 'users/:username/payments' => 'payments#show'
 end

spec/controllers/discourse_payments/payments_controller_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 module DiscoursePayments
-  RSpec.describe ChoiceController, type: :controller do
+  RSpec.describe PaymentsController, type: :controller do
     routes { DiscoursePayments::Engine.routes }
   #
     it 'responds with ok' do