💋 扩展grape的formatter, 支持返回 html

GrapeRender.rb

module Grape
  module ContentTypes
    def self.content_types_for(from_settings)
      if from_settings.present?
        from_settings
      else
                ActiveSupport::OrderedHash[
                    :xml,  'application/xml',
                    :serializable_hash, 'application/json',
                    :json, 'application/json',
                    :binary, 'application/octet-stream',
                    :txt,  'text/plain',
                    :html,  'text/html'
            ]

      end
    end
  end
end

module Grape
  module Formatter
    module Html
      class << self
        def call(object, env)
        end
      end
    end
  end
end

Grape::Formatter::Base.formatters({html: Grape::Formatter::Html})

#####

class Doc < Grape::API 
     format :html
     content_type :html, 'text/html'

     get '/path' do
       #render erb template
     end
end