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Pratical eff

Jan. 16, 2017••
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Technology

How we use the Eff monad at Zalando in addition to a components strategy using github.com/zalando/grafter

Eric Torreborre
Senior Software Engineer at Zalando
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Pratical eff

  1. Eric Torreborre Practical Eff monad Doing it for real
  2. About Zalando
  3. Brand solutions
  4. Article service
  5. Articleservice Zeos products business-partners stocks 59.95 € 10 items
  6. How to deal?
  7. Components!
  8. DI?
  9. Cake?
  10. Guice?
  11. Spring?
  12. Radical
  13. Constructor injection!
  14. Grafter
  15. HttpServer Routes Services Clients
  16. PriceHttpService PriceHttp4sService
  17. Always one default
  18. In a library?
  19. reader all the way down!
  20. Unit testing?
  21. Integration testing?
  22. HttpServer Routes Services Clients
  23. HttpServer Routes Services Clients
  24. Tree rewriting!
  25. Kiama
  26. Singleton?
  27. HttpServer Routes Services Clients
  28. HttpServer Routes Services Clients
  29. Stay lazy!
  30. Start order?
  31. lazy reader rewrite start
  32. Eff please!
  33. Out of the box
  34. Reader Eval Async State ThrowableEither Writer
  35. Article service
  36. FlowId
  37. HttpServer Routes Services Clients flowId flowId flowId flowId
  38. Logged
  39. Applicative
  40. Concurrent execution
  41. MasterData PriceService Inventory
  42. Async
  43. Eff in Eff!
  44. Future Monix
  45. No applicative for-comprehension
  46. FlowId Logged Async Eval
  47. Mitsaeks we made
  48. Errors
  49. 3 possibilities
  50. 1 error style per layer Translation between layers
  51. HttpServer Routes Services Clients
  52. Client level
  53. Service level
  54. Service level
  55. Service level
  56. Local Effects!
  57. Everything is a (Free) DSL?
  58. Make price request request [PriceRequest] [PriceRequest] response Interpret request [PriceRequest, Async] [Async]
  59. Get price price [Async] [Async]
  60. Time: effect or component?
  61. Get status status [Eval] now? [Eval] now
  62. Get status status [Eval] now? [Eval] now FreezedTime
  63. Get status status [Eval, Timed] runFreezedTime(status) [Eval]
  64. Recap
  65. More Applicative Goodies!
  66. Batching
  67. Translation client Inventory
  68. Translation client Inventory
  69. Audited
  70. Logs Database Event Bus
  71. Rate limiting
  72. Create Intercept Interpret
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