This is an example how to use stacktrace to find caller file in node

function _getCallerFile() {

    var filename;



    var _pst = Error.prepareStackTrace

    Error.prepareStackTrace = function (err, stack) { return stack; };

    try {

        var err = new Error();

        var callerfile;

        var currentfile;



        currentfile = err.stack.shift().getFileName();



        while (err.stack.length) {

            callerfile = err.stack.shift().getFileName();



            if(currentfile !== callerfile) {

                filename = callerfile;

                break;

            }

        }

    } catch (err) {}

    Error.prepareStackTrace = _pst;



    return filename;

}