facade pattern

facade.js

// Facade Pattern
/*
    Facade pattern are most commonly used in combination with other patterns like module pattern. 
    Here we will create facade from a module.
 */


 var module = (function() {
    'use strict';

    // Private Method 
    var book = {
        get: function() {
            // Find book with the id/index
            console.log( "Getting Book Info...");
        },
        set: function( bID, uID ) {
            // use bookID(bID) and userID(uID) to set book to user 
        },
        download: function() {
            console.log( "downloading" );
        },
        mailing: function(){
            console.log( "Thank You for Subscribing." );
        }
    };
 
    return {
        // Create the facade for running whole list of process
        facade: function( data ) {
            book.set(data.id, data.userID);
            book.get();
            if ( data.download )
                book.download();
            if (data.mailing) 
                book.mailing();
        }
    };
}());
 
 
module.facade( {
    id: 2, 
    userID: 123123, 
    download: true, 
    mailing: true 
});

/*
$ node facade.js 
Getting Book Info...
downloading
Thank You for Subscribing.
 */