DevOpsPorto Meetup 38: Intro to FastAPI by Sebastián Ramírez

Transcript

1. Intro to High performance, easy to learn, fast to code,

   ready for production

2. Who am I? Sebastián Ramírez github.com/tiangolo linkedin.com/in/tiangolo twitter.com/tiangolo Dev at

   Explosion Berlin, Germany Explosion created: I created: tiangolo.com

3. About FastAPI • 19K GitHub stars (about 1K+ per month)

   • Used by Microsoft, Uber, Netflix, etc. • Performance in the top rank for Python @tiangolo

4. Based on standards • OpenAPI • JSON Schema • OAuth2

   ✨ Automatic API docs ✨ @tiangolo

5. Based on standards - for free @tiangolo

6. Based on Python type hints • Autocompletion everywhere • Type

   checks and type errors @tiangolo

7. Types provide autocompletion @tiangolo

8. Easy and short @tiangolo

9. Less API code @tiangolo

10. Basic FastAPI app @tiangolo https://somedomain.com/items/5?q=some+query

11. Basic FastAPI app - docs @tiangolo https://somedomain.com/docs

12. Automatic docs @tiangolo

13. Basic FastAPI app with body @tiangolo

14. Basic FastAPI app with body - docs @tiangolo

15. Basic FastAPI app with body - docs @tiangolo

16. Basic FastAPI app with body @tiangolo

17. Basic FastAPI app with body and query @tiangolo

18. Basic FastAPI app with body and query - docs @tiangolo

    https://somedomain.com/food/?delivery=true

19. Basic FastAPI app with body and query @tiangolo

20. JSON array of objects in body @tiangolo

21. JSON array of objects in body - docs @tiangolo

22. JSON array of objects in body @tiangolo

23. JSON array of objects in body - invalid data @tiangolo

24. JSON array of objects in body - validation @tiangolo

25. JSON array of objects in body - validation @tiangolo

26. FastAPI auto-completion @tiangolo

27. Type checks @tiangolo

28. All based on standard Python types @tiangolo

29. Metadata @tiangolo

30. Metadata in docs @tiangolo

31. Metadata in docs @tiangolo

32. Required query @tiangolo

33. Required query in docs @tiangolo

34. Required query validation @tiangolo

35. Required query in docs - valid @tiangolo https://somedomain.com/food/?quantity=2

36. Required query in docs - response @tiangolo

37. Required query in docs @tiangolo

38. Validation @tiangolo

39. Validation in docs @tiangolo

40. Validation in docs - response @tiangolo

41. Data validation @tiangolo

42. FastAPI - Performance @tiangolo

43. FastAPI - Performance @tiangolo

44. FastAPI - Other features @tiangolo • Dependency Injection • Security

    - OAuth2 • WebSockets • Files • Background Tasks • Easy GraphQL integration • More...

45. FastAPI - When not to @tiangolo • Stable • No

    new features • Not an API

46. Other tools @tiangolo Build great CLIs. Easy to code. Based

    on Python type hints. Functional deep learning with types, compatible with your favorite libraries. typer.tiangolo.com thinc.ai

47. Thank you! Sebastián Ramírez github.com/tiangolo linkedin.com/in/tiangolo twitter.com/tiangolo tiangolo.com Questions? fastapi.tiangolo.com