1. group-chat system
2. private-chat system
3. bootstrap and ejs template used
4. passport used by facebook & google
5. mongodb used in mongoose
6. async module
7. add async / await (modify from original code)
8. aws match with multer for upload
9. container to use global modules applied
10.get news api services by http://content.guardianapis.com/
1. login
$ heroku login
2. create project (in project folder)
$ heroku create project
3. show projects
$ heroku apps
4. push code to heroku server
$ git push heroku master
5. as change in github
$ git add .
$ git commit -m ''
$ git push
then run back to step 4.
6. as exec command in heroku
$ touch Procfile
add text in Procfile
web: ./node_modules/.bin/forever -m 5 server.js