zammad/config/routes/channel.rb

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

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

end