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20220928-golang-meetup-di-fx_release_.pdf

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Avatar for Ken Chen Ken Chen
September 28, 2022
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 20220928-golang-meetup-di-fx_release_.pdf

Avatar for Ken Chen

Ken Chen

September 28, 2022
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Transcript

  1. 用 Fx 來替 Go 依賴注入吧 Ken Chen @ Golang Taiwan

    Gathering #64 2022/9/29

  2. ## About Me - OneDegree Backend Engineer - Go Developer

    - Modern Software Engineering - Cinema, Modern Literature / Sociology

  3. ## 讓我們看看今天的話題 - 依賴注入 - 作為應用框架的 Fx - Fx 的實現

    - 使用上要注意的點

  4. 依賴注入的目的

  5. ## 相依性的來源 - Repo 創建物件後，交給 Us 使用 - 那能不能要更多東西？ Usecase

    Repository

  6. Usecase Repository Database Schema ## 相依性的來源 - Repo 的物件會影響到程式邏輯 -

    資料庫的 Schema 會影響到程式邏輯
  7. None

  8. ## 切分子系統 - 每一層中間加上介面 - 實作優先轉為介面優先 Usecase Repository <<Interface>> Repository

  9. None

  10. 講這麼多，要怎麼做

  11. None
  12. None
  13. None
  14. None

  15. 好像很簡單？ 那是因為沒放入應用

  16. None

  17. Usecase A Usecase B Repository A Postgres Repository C Repository

    B MongoDB Redis

  18. Fx 是依賴注入的應用框架

  19. None
  20. None
  21. None
  22. None

  23. 今晚我想來點 Graceful Shutdown

  24. None
  25. None
  26. None

  27. 有沒有可能預配置？

  28. Instance A NewFunc B invoke Invoke Provide Supply

  29. None

  30. 想要解構賦值的話呢？

  31. None
  32. None

  33. 覺得參數太多怎麼辦？

  34. None

  35. 想要打包成模組的話呢？

  36. NewFunc B Module Provide NewFunc A Instance A Supply

  37. None
  38. None

  39. 需要多個相同型別的實例

  40. None
  41. None
  42. None
  43. None

  44. Fx 是如何打造的？

  45. None
  46. None
  47. None
  48. None
  49. None

  50. 關於 Fx 使用上的反思

  51. None
  52. None

  53. ## 可能的處理方式 - 加入自定義的 logger - 初始化階段，失敗直接 panic - 建立公司內的工具包，降低導入成本

    - 評估使用 Fx 對加速的幫助

  54. 謝謝大家 medium