node.js - Using 'async' and neglecting to invoke 'callback' -

i'm relatively new node.js, wondering how make asynchronous code more reliable. focusing on code uses 'async' (no promises yet, due legacy reasons).

one of reliability concerns failing invoke callbacks. e.g.

async.series([        function(callback){            if(..)               console.log("invalid input, try again"); // bug: no callback!            else               callback(null, 'ok');        },        function(callback){            ...        }   ],   function(err,result){ handleerrororresult(err,result);} // might not reached ); 

this code may never complete (never reach 'handleerrororresult') , won't know went wrong. since pit easy fall into, wonder whether there ready-made library solutions it? ideas welcome, 1 direction might timeouts: invoke error handler if whole thing isn't completed within, say, 5 minutes.

thanks much

make own wrapper implements timeout.

var myasync = {   series: function (callbacks, timeout, done) {     var timeoutid = settimeout(function () {       done("maximum time exceeded method!");     }, timeout);     async.series(callbacks, function () {       cleartimeout(timeoutid);       done.apply(this, arguments);     });   } } 

now can use like:

myasync.series(functions, functions.length * 500, callback);