writing_demo_app the server and the client side web application is stored under the MEAN folder For server: All the source code are stored under ./MEAN/server ./MEAN/server/app.js is the entry for the server side code all the required package are stored in package.json after downloading the code, you need to run "npm install" to install the required node module For client: All the srouce code are stored under ./MEAN/client ./MEAN/client/app/index.html is the entry view; ./MEAN/client/app/scripts/router.js is the entry code; all the required module are stored in bower.json after downloading the code, you need to run "bower install" to download all the required module For Database: Mongodb is used; please goto download the mongodb and make it up before you use with the server code