Free Django!

Transcript

1. Free Django! WEB service
2. Plan • Diving inside Backend • Django basics • Django REST Framework • Simple Django app
3. Diving inside Backend In software engineering, front end (frontend) and back end (backend) distinguish between the separation of concerns between the presentation layer (the front end) – which is the interface between the user – and the data access layer (the back end).
4. Diving inside Backend • Basic Architecture • Top 3 projects overview • Why Django?
5. • LAMP ◦ Linux – OS ◦ Apache – web (also nginx) ◦ MySQL – database (also postgres) ◦ PHP – frontend + backend (also Django, Ruby on Rails) Basic Architecture
6. Basic Architecture • LAMP • MEAN ◦ MongoDB – database ◦ Express.js – web ◦ Angular.js – frontend ◦ Node.js – backend
7. Top 3 projects overview • Django
8. Top 3 projects overview • Django • Ruby On Rails
9. Top 3 projects overview • Django • Ruby On Rails • Express.js
10. Why Django? • Fast development
11. Why Django? • Fast development • Strong community
12. Why Django? • Fast development • Strong community • Secure
13. Why Django? • Fast development • Strong community • Secure • Featured
14. Why Django? • Fast development • Strong community • Secure • Featured • Like Ruby on Rails, but Django
15. Django basics • Structure • Where to find Applications? • Django MVC
16. Structure • project/ ◦ manage.py # entrypoint ◦ mysite/ # dir with site staff ▪ __init__.py ▪ settings.py # site settings ▪ urls.py # URL declarations ▪ wsgi.py # entry-point for WSGI-compatible
17. Structure • project/pet/ ▪ __init__.py ▪ migrations/ • __init__.py ▪ models.py ▪ tests.py ▪ views.py # Contollers ▪ urls.py # app URL declarations
18. Where to find Applications? • Django packages • GitHub • In your Company
19. MVC → Django MVC • Model → Model • Controller → View • View → Template
20. Django REST Framework • Features ◦ Great architecture ◦ Easy to add to an existed project ◦ Plenty of existed apps
21. Django REST Framework • Features • Usage ◦ Install ◦ Add Router ◦ Add ViewSet ◦ Add Serializers ◦ Add Tests
22. Django REST Framework • Features • Usage • Profit ◦ Termius ◦ Look
23. Simple Django app • How to start (Do it!): ◦ Install python and pip
24. Simple Django app • How to start (Do it!): ◦ Install python and pip ◦ https://docs.djangoproject.com/en/2.0/intro/install/
25. Simple Django app • How to start (Do it!): ◦ Install python and pip ◦ https://docs.djangoproject.com/en/2.0/intro/install/ ◦ https://docs.djangoproject.com/en/2.0/intro/tutorial01/
26. Simple Django app • How to start (Do it!): ◦ Install python and pip ◦ https://docs.djangoproject.com/en/2.0/intro/install/ ◦ https://docs.djangoproject.com/en/2.0/intro/tutorial01/ ◦ Run localserver
27. Simple Django app • How to start (Do it!) • My sample • https://github.com/EvgeneOskin/animals-drf
28. Summary • Diving inside Backend • Django basics • Django REST Framework • Simple Django app
29. References • http://bit.ly/lamp-wiki • https://www.djangoproject.com/ • https://docs.djangoproject.com/en/2.0/intro/install/ • https://docs.djangoproject.com/en/2.0/intro/tutorial01/ • http://django-rest-framework.org/ • http://djangopackages.com/ • https://github.com/EvgeneOskin/animals-drf • http://www.intenct.nl/projects/django-allauth/
30. Advices • Do not use aggregations in admin page! • Add a crash reporter (eg. Sentry) and track your app version! • Have a strong deployment process! • Do not run datamigrations in service start!