From Noob to Contributing Noob

my talk at ElixirConf 2019 (Prague)

Transcript

1. From Noob to
   Contributing Noob
   Lisbon |> Elixir
   

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2. $> whoami
   Lisbon |> Elixir
   Daniel Serrano
   Software Engineer
   Biometrics Team @
   @dnlserrano
   

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3. Outline
   Lisbon |> Elixir
   • a bit about my early days with Elixir
   • how I went from not knowing the language to contributing to
   OSS projects
   • httpoison
   • spandex
   • elixir-thrift
   • the community behind Elixir
   

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4. Early days
   Lisbon |> Elixir
   

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5. Beginning
   Lisbon |> Elixir
   Nizar Venturini
   @trenpixster
   

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6. Later on…
   Lisbon |> Elixir
   Paulo Pereira
   @odesassossegado
   

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7. Later on…
   Lisbon |> Elixir
   Paulo Pereira
   @odesassossegado
   

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8. Later on…
   Lisbon |> Elixir
   Paulo Pereira
   @odesassossegado
   

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9. Onfido a
   Lisbon |> Elixir
   • using it to run a research pipeline made up of a
   sequence of Python executables in a fault-tolerant way
   • very hacky
   • 1st pull-request in Elixir during hackathon
   • lots of in-house knowledge that has been building up and more…
   

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10. In the Biometrics Team a
    Lisbon |> Elixir
    

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11. Motus
    Lisbon |> Elixir
    • poolboy
    • worker pools
    • fuse
    • circuit breaking
    • ex_statsd
    • metrics
    • mox
    • mocks for testing
    • httpoison
    • http
    • spandex
    • tracing
    microservices aggregator
    

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12. Boxxie
    Python microservice
    Content-Type:
    multipart/mixed;boundary=firstboundary123
    --firstboundary123
    Content-Type: application/json
    {“metadata”: …}
    --firstboundary123
    Content-Type: image/png
    [binary]
    --firstboundary123
    Content-Type: application/json
    {“metadata”: …}
    --firstboundary123
    Content-Type: image/png
    [binary]
    --firstboundary123--
    multipart
    response
    request
    Lisbon |> Elixir
    

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13. Lisbon |> Elixir
    

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14. httpoison
    • did not support multipart out-of-the-box
    • depends on hackney
    Lisbon |> Elixir
    

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15. Lisbon |> Elixir
    

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16. Lisbon |> Elixir
    

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17. Lisbon |> Elixir
    

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18. Lisbon |> Elixir
    :hackney_multipart.decode_form/2
    

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19. Lisbon |> Elixir
    

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20. before
    after
    Lisbon |> Elixir
    

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21. Lisbon |> Elixir
    

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22. commit message
    Lisbon |> Elixir
    

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23. hexdocs
    Lisbon |> Elixir
    

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24. README
    Lisbon |> Elixir
    

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25. httpoison
    contribution done ✔
    Lisbon |> Elixir
    

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26. Distributed Tracing
    Lisbon |> Elixir
    

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27. spandex
    Lisbon |> Elixir
    

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28. spandex
    upgrade news
    Lisbon |> Elixir
    

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29. spandex
    v2.4.0
    re-implement function decorators in our project
    Lisbon |> Elixir
    

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30. spandex
    v2.4.0
    “How would you feel about
    bringing back function decorators?”
    Lisbon |> Elixir
    

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31. spandex
    v2.4.0
    Lisbon |> Elixir
    

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32. spandex
    v2.4.0
    
    Lisbon |> Elixir
    
    

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33. spandex
    v2.4.0
    • recognition for your work
    • gives you a sense of accomplishment
    • fosters deeper, broader knowledge
    • strengthens the community
    Lisbon |> Elixir
    

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34. spandex
    contribution done ✔
    Lisbon |> Elixir
    

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35. • Uber’s open-source distributed tracing platform
    • uses Thrift as the underlying communication protocol
    Lisbon |> Elixir
    

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36. service
    struct
    Thrift IDL
    Lisbon |> Elixir
    

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37. elixir-thrift
    Lisbon |> Elixir
    

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38. elixir-thrift
    Lisbon |> Elixir
    

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39. elixir-thrift
    contribution done ✔
    Lisbon |> Elixir
    

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40. Community
    

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41. MINASWAN
    “Matz is nice and so we are nice”
    Yukihiro Matsumoto
    Lisbon |> Elixir
    

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42. JINASWAN
    José Valim
    “José is nice and so we are nice”
    Lisbon |> Elixir
    

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43. Get Involved
    • follow Elixir community members on Twitter
    • watch elixirforum.com
    • sign up for the Plataformatec newsletter on Elixir
    • listen to podcasts
    • read (and write) blog posts
    • present talks at the Lisbon |> Elixir meetup
    Lisbon |> Elixir
    

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44. Thank you
    questions?
    Lisbon |> Elixir
    

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