Djangocong Apps to Services

Transcript

1. Django Apps to Services

2. Craig Kerstiens @craigkerstiens work at @heroku

3. Project App A collection of configuration and apps for a

   particular Website. (per Django Project) Django

4. Project App A collection of configuration and apps for a

   particular Website. A web application that does something. I.e. Weblog, Poll, Ticket system (per Django Project) Django

5. Within Django

6. Project Within Django

7. Project App Within Django

8. Project App App Within Django

9. Project App App App Within Django

10. Project App App App Tickets FAQ FaqCreator Within Django

11. REUSABILITY means faster features due to DRY (Don’t Repeat Yourself)

    REUSABILITY does not always mean SCALABILITY or MAINTAINABILITY

12. Project App A collection of configuration and apps for a

    particular Website. A web application that does something. I.e. Weblog, Poll, Ticket system (per Django Project) Django

13. Project App A collection of configuration and apps for a

    particular Website. A web application that does something. I.e. Weblog, Poll, Ticket system Django Service Method of communication over the web. Web APIs allow combination of multiple services
14. None

15. Tech imitate Teams Project App App App Tickets FAQ FaqCreator

    Company Support Knowledge Base

16. App App Support Knowledge Base Teams Grow

17. App App Support Knowledge Base Billing Teams Grow

18. App App Support Knowledge Base Billing Marketing Teams Grow

19. App App Support Knowledge Base Billing Marketing Analytics Mobile API

    Front End Social Teams Grow

20. App App App Support Knowledge Base Billing Apps Grow Marketing

    Analytics Mobile API Front End Social 3 Apps

21. App App App Support Knowledge Base Billing Apps Grow App

    App App Marketing Analytics Mobile App App App API Front End Social 9 Apps

22. Support Knowledge Base Billing Apps Grow Marketing Analytics Mobile API

    Front End Social 9 Apps 1 Codebase

23. Defined contract for communicating Service

24. Defined contract for communicating Service $ curl -O $FAQ_API/create/ -X

    “question=my\ question source=123”

25. In Python

26. In Python data = { ‘question’: “my question”, ‘source’: 123

    } requests.POST(os.environ[‘FAQ_API’] + ‘/create/’, data=data)
27. None

28. Version Bump data = { ‘question’: “my question”, ‘source’: 123,

    ‘related’: [456, 789] } requests.POST(os.environ[‘FAQ_API’] + ‘/v2/create’, data=data)

29. Version Bump data = { ‘question’: “my question”, ‘source’: 123,

    ‘related’: [456, 789] } requests.POST(os.environ[‘FAQ_API’] + ‘/v2/create’, data=data)

30. Version Bump

31. Version Bump data = { ‘question’: “my question”, ‘source’: 123,

    ‘related’: [456, 789] } requests.POST(os.environ[‘FAQ_API’] + ‘/v2/create’, data=data) STILL VALID requests.POST(os.environ[‘FAQ_API’] + ‘/v1/create’, data=data)

32. Whats a service Provider API_HOST= http://127.0.0.1

33. Whats a service Provider Endpoint API_HOST= http://127.0.0.1 /v1/create/

34. Whats a service Provider Endpoint API_HOST= http://127.0.0.1 /v1/create/ Contract {

    ‘question’: ‘foo bar’, ‘source’: 123 }

35. Service App

36. Service App Models Views URLs Provider Endpoint Contract

37. A SERVICE means REUSABILITY and enables SCALABILITY and MAINTAINABILITY

38. A SERVICE means REUSABILITY and enables SCALABILITY and MAINTAINABILITY

39. Fin. Resources http://bit.ly/djangocong http://bit.ly/appstoservices http://www.12factor.net