grape 图片api

 desc "Update image"

  params do

    requires :id,:type =>String,:desc =>"ID."

    requires :image,:type =>Rack::Multipart::UploadedFile,:desc =>"Image file."end

  post :image do

    new_file =ActionDispatch::Http::UploadedFile.new(params[:image])

    object =SomeObject.find(params[:id])

    object.image = new_file

    object.save

  end

链接地址 http://stackoverflow.com/questions/14067163/uploading-file-with-grape-and-paperclip

grape 图片api