1. Node.js - https://nodejs.org/en/download/
2. MongoDB - https://docs.mongodb.com/v3.0/tutorial/
3. Mongoose - npm install mongoose
4. Body Parser - npm install body parser
5. Angular 2 - https://www.npmjs.com/package/angular-2
6. Express.js - npm install express

Install MongoDB in a directory e.g.- mongodb, create another directory for storing database e.g.- db, go to directory mongodb/bin and run command

$ mongod --directoryperdb --dbpath path/to/db

$ node server/server.js - This will start node server on localhost:3000

Go to browser and give URL http://localhost:3000 it will open homepage of this webapp, go to http://localhost:3000/a or http://localhost:3000/b and do activities then check those activities in http://localhost:3000/a/admin or http://localhost:3000/b/admin.

Page localhost:3000/a -

Page localhost:3000/a/admin -