zammad/config/routes/text_module.rb

Zammad::Application.routes.draw do
  api_path = Rails.configuration.api_path

  # text_modules
  match api_path + '/text_modules',           :to => 'text_modules#index',    :via => :get
  match api_path + '/text_modules/:id',       :to => 'text_modules#show',     :via => :get
  match api_path + '/text_modules',           :to => 'text_modules#create',   :via => :post
  match api_path + '/text_modules/:id',       :to => 'text_modules#update',   :via => :put
  match api_path + '/text_modules/:id',       :to => 'text_modules#destroy',  :via => :delete

end