A simple example of chained promises using Q promise library.

testChainedPromise.js

var Q = require("q");

var slowFunction1 = function( myObject ) {

    console.log("\nRunning slowFunction1");
    console.log(myObject);

    var deferred = Q.defer();

    setTimeout( function() {
        console.log("slowFunction1 is resolving!");
        myObject.slowFunction1Processed = true;
        deferred.resolve( myObject );
    }, 1500);

    return deferred.promise;
};

var slowFunction2 = function( myObject ) {

    console.log("\nRunning slowFunction2");
    console.log(myObject);

    var deferred = Q.defer();

    setTimeout( function() {
        console.log("slowFunction2 is resolving!")
        myObject.slowFunction2Processed = true;
        deferred.resolve( myObject );
    }, 1500);

    return deferred.promise;
};


var slowFunction3 = function( myObject ) {

    console.log("\nRunning slowFunction3");
    console.log(myObject);

    var deferred = Q.defer();

    setTimeout( function() {
        console.log("slowFunction3 is resolving!")
        myObject.slowFunction3Processed = true;
        deferred.resolve( myObject );
    }, 1500);

    return deferred.promise;
};

var processes = [ slowFunction1, slowFunction2, slowFunction3 ];

var initialValue = { "stuff" : "it"};

var getFinalResult = function() {
    return processes.reduce( function( nextProcess, f ) {

        return nextProcess.then(f);

    }, Q(initialValue));

};
//
//getFinalResult().then(
//    function( response) {
//        console.log("\nFinished running !");
//        console.log(initialValue);
//
//        console.log("\nHere is the returned response");
//        console.log(response);
//    }
//);

var badSlowFunction = function( myObject ) {

    console.log("\nRunning badSlowFunction");
    console.log(myObject);

    var deferred = Q.defer();

    setTimeout( function() {
        console.log("badSlowFunction is rejecting!")
        myObject.badSlowFunction = true;
        deferred.reject( myObject );
    }, 1500);

    return deferred.promise;
};

var processes = [ slowFunction1, badSlowFunction, slowFunction3 ];



getFinalResult().then(
    function( response) {
        console.log("\nFinished running !");
        console.log(initialValue);

        console.log("\nHere is the returned response");
        console.log(response);
    },

    function( error ) {
        console.log("Oh crappers!  Something rejected!");
        console.log(error);
    }
);