Fun with API Routes

class_definitions.rb

# app/controllers/api/v1/users_controller.rb
class Api::V1::UsersController
  def index
    render json: { path: 'v1/users#index' }
  end

  def show
    render json: { path: 'v1/users#show' }
  end
end

# app/controllers/api/v1/posts_controller.rb
class Api::V1::PostsController
  def index
    render json: { path: 'v1/posts#index' }
  end
end

# app/controllers/api/v2/users_controller.rb
class Api::V2::UsersController
  def index
    render json: { path: 'v2/users#index' }
  end
end

path_helpers.rb

>> api_users_path
=> '/api/v2/users'

>> api_user_path(user.id)
>> '/api/v1/users/:user_id'

>> api_v1_users_path
=> '/api/v1/users'

>> api_posts_path
=> '/api/v2/posts'

route_behaviour.rb

>> get '/api/v2/users'
=> "{'path': 'v2/users#index'}"

>> get '/api/v2/users/5'
=> "{'path': 'v1/users#show'}"

>> get '/api/v1/users'
=> "{'path': 'v1/users#index'}"

>> get '/api/v2/posts'
=> "{'path': 'v1/posts#index'}"

>> get '/api/users'
=> redirect_to '/api/v2/users'