Manipulate file json with Rails

manipulate_json.rb

def get_user_json(utoken)
  File.read("#{path_user_json}/#{utoken}.json")
end

def delete_user_json(utoken)
  FileUtils.rm("#{path_user_json}/#{utoken}.json")
end

def empty_user_json(utoken)
  begin
    FileUtils.touch("#{path_user_json}/#{utoken}.json")
  rescue  => e
    create_user_json(utoken, {})
  end
end

def create_user_json(utoken, data)
  File.open("#{path_user_json}/#{utoken}.json","w+") do |f|
    f.write(data.to_json)
  end
end

def path_user_json
  Rails.root.join('public','jsons')
end