DevOpsPorto Meetup 38: Intro to FastAPI by Sebastián Ramírez

Transcript

1. Intro to
   High performance, easy to learn,
   fast to code, ready for production
   

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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
   

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3. About FastAPI
   ● 19K GitHub stars (about 1K+ per month)
   ● Used by Microsoft, Uber, Netflix, etc.
   ● Performance in the top rank for Python
   @tiangolo
   

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4. Based on standards
   ● OpenAPI
   ● JSON Schema
   ● OAuth2
   ✨ Automatic API docs ✨
   @tiangolo
   

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5. Based on standards - for free
   @tiangolo
   

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6. Based on Python type hints
   ● Autocompletion everywhere
   ● Type checks and type errors
   @tiangolo
   

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7. Types provide autocompletion
   @tiangolo
   

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8. Easy and short
   @tiangolo
   

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9. Less API code
   @tiangolo
   

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

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

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12. Automatic docs
    @tiangolo
    

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13. Basic FastAPI app with body
    @tiangolo
    

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14. Basic FastAPI app with body - docs
    @tiangolo
    

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15. Basic FastAPI app with body - docs
    @tiangolo
    

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16. Basic FastAPI app with body
    @tiangolo
    

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17. Basic FastAPI app with body and query
    @tiangolo
    

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18. Basic FastAPI app with body and query - docs
    @tiangolo
    https://somedomain.com/food/?delivery=true
    

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19. Basic FastAPI app with body and query
    @tiangolo
    

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20. JSON array of objects in body
    @tiangolo
    

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

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22. JSON array of objects in body
    @tiangolo
    

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

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

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

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26. FastAPI auto-completion
    @tiangolo
    

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27. Type checks
    @tiangolo
    

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28. All based on standard Python types
    @tiangolo
    

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29. Metadata
    @tiangolo
    

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30. Metadata in docs
    @tiangolo
    

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31. Metadata in docs
    @tiangolo
    

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32. Required query
    @tiangolo
    

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33. Required query in docs
    @tiangolo
    

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34. Required query validation
    @tiangolo
    

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

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36. Required query in docs - response
    @tiangolo
    

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37. Required query in docs
    @tiangolo
    

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38. Validation
    @tiangolo
    

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39. Validation in docs
    @tiangolo
    

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40. Validation in docs - response
    @tiangolo
    

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41. Data validation
    @tiangolo
    

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42. FastAPI - Performance
    @tiangolo
    

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43. FastAPI - Performance
    @tiangolo
    

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44. FastAPI - Other features
    @tiangolo
    ● Dependency Injection
    ● Security - OAuth2
    ● WebSockets
    ● Files
    ● Background Tasks
    ● Easy GraphQL integration
    ● More...
    

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45. FastAPI - When not to
    @tiangolo
    ● Stable
    ● No new features
    ● Not an API
    

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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
    

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

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