Key checking

gistfile1.js

   
   ['app_name', 'method', 'type'].forEach ( function (item) {
      if (!req.headers.hasOwnProperty(item)) {
        throw {
          etype   : 'USER'
         ,ecode   : 406 
         ,source  : 'HTTP LOCAL ROUTE'
         ,info    : 'MISSING ITEM [' + item + ']'
        }
      }
    });