Continuous Analytics. Как мы это поняли, что мы сделали и как это стало экономить нам время

Talk by Vitalii Malakhovskiy.

Тема доклада - “Continuous Analytics. Как мы это поняли, что мы сделали и как это стало экономить нам время”.

В своем выступлении Виталий поделится следующим опытом команды:
- работа с аналитикой и поддержка ее актуальности;
- проблемы, с которыми они столкнулись при ее масштабировании;
- как начать автоматически генерировать часть кода для аналитики;
- что нужно сделать чтобы система типов помогала с аналитикой.

This talk was made for CocoaFriday #1 ( https://cocoaheads.org.ua/cocoafriday/1 ) which took place Mar 1, 2019.

Video is available here: https://youtu.be/rYSXGGfLDak

Transcript

1. Vitalii Malakhovskyi vitalii malakhovskyi, betterme 1
2. software engineer vitalii malakhovskyi, betterme 2
3. Continuous Analytics vitalii malakhovskyi, betterme 3
4. we will talk about • how to manage analytics? • how to reduce human mistake? • how to speed up development? vitalii malakhovskyi, betterme 4
5. ? vitalii malakhovskyi, betterme 5
6. continuous analytics is a way to put analytic process into agile — wiki vitalii malakhovskyi, betterme 6
7. vitalii malakhovskyi, betterme 7
8. so what is analytics for us, developers? vitalii malakhovskyi, betterme 8
9. vitalii malakhovskyi, betterme 9
10. not about that vitalii malakhovskyi, betterme 10
11. events • name • category • parameters • sums vitalii malakhovskyi, betterme 11
12. !"#$% !"#$ !"# !" ! tracking systems vitalii malakhovskyi, betterme 12
13. class AnalyticsTracker { func track(event: Event) } vitalii malakhovskyi, betterme 13
14. let's focus on events vitalii malakhovskyi, betterme 14
15. where? vitalii malakhovskyi, betterme 15
16. google sheets vitalii malakhovskyi, betterme 16
17. vitalii malakhovskyi, betterme 17
18. vitalii malakhovskyi, betterme 18
19. what about code??? vitalii malakhovskyi, betterme 19
20. preventing errors (by making another errors) vitalii malakhovskyi, betterme 20
21. enum Profile { case appear case addHeightClick(height: Double) case addWeightClick(weight: Double) // other events } vitalii malakhovskyi, betterme 21
22. protocol EventNameProvider { var name: String { get } } protocol EventParametersProvider { var parameters: [String: String] { get } } vitalii malakhovskyi, betterme 22
23. extension Profile: EventNameProvider { var name: String { switch self { case .appear return "profile_appear" // other events } } } vitalii malakhovskyi, betterme 23
24. extension Profile: EventParametersProvider { var parameters: [String: String] { switch self { case .addHeightClick(let value): return [ "height": value, "measurement": "metric", "category": "profile" ] // other events } } } vitalii malakhovskyi, betterme 24
25. enum Event { case activeTraining(ActiveTraining) case profile(Profile) case congratulation(Congratulation) enum Profile { ... } } vitalii malakhovskyi, betterme 25
26. class ViewModel { let analyticsTracker: AnalyticsTracker func handleHeight(with value: Double) { analyticsTracker.track(.profile(.addHeightClick(value))) } } vitalii malakhovskyi, betterme 26
27. first release vitalii malakhovskyi, betterme 27
28. Pros • single source of truth • static type check • can be tested vitalii malakhovskyi, betterme 28
29. Cons • analytics tracker everywhere • swift type system won't help ! vitalii malakhovskyi, betterme 29
30. class ViewModel { let analyticsTracker: AnalyticsTracker func handleHeight(with value: Double) { analyticsTracker.track( Event.profile(Profile.addHeightClick(value)) ) } } vitalii malakhovskyi, betterme 30
31. class ViewModel { let analyticsTracker: AnalyticsTracker func handleHeight(with value: Double) { analyticsTracker.track( Event.profile(Profile.addHeightClick(value)) ) } } ! vitalii malakhovskyi, betterme 31
32. vitalii malakhovskyi, betterme 32
33. single page of truth - is it really good? vitalii malakhovskyi, betterme 33
34. vitalii malakhovskyi, betterme 34
35. problem, it`s when something small and cute becomes into vitalii malakhovskyi, betterme 35
36. vitalii malakhovskyi, betterme 36
37. why it is problem: • ! yesterday : rx, viper, ml, ci/cd • " today: add few analytics events • ! today: sure, just let me put 80% of time to write some boilerplate code vitalii malakhovskyi, betterme 37
38. vitalii malakhovskyi, betterme 38
39. Pros • static type check vitalii malakhovskyi, betterme 39
40. Cons • single page of analytics (no versioning) • human factor - incorrect naming/mixed arguments • not scalable • swift type system says ! • analytics everywhere (di) vitalii malakhovskyi, betterme 40
41. vitalii malakhovskyi, betterme 41
42. what to do? vitalii malakhovskyi, betterme 42
43. add versioning to analytics google sheets + tabs + clearness = versioning vitalii malakhovskyi, betterme 43
44. vitalii malakhovskyi, betterme 44
45. what about CODEGEN? vitalii malakhovskyi, betterme 45
46. ! " ! " ! ! ! " vitalii malakhovskyi, betterme 46
47. google: hot export sheets to json? http://blog.pamelafox.org/2013/06/exporting-google- spreadsheet-as-json.html vitalii malakhovskyi, betterme 47
48. vitalii malakhovskyi, betterme 48
49. vitalii malakhovskyi, betterme 49
50. rasp (file) vitalii malakhovskyi, betterme 50
51. vitalii malakhovskyi, betterme 51
52. vitalii malakhovskyi, betterme 52
53. fastlane ruby vitalii malakhovskyi, betterme 53
54. JSON ! Swift vitalii malakhovskyi, betterme 54
55. ugliest, unsupportable, unreadable vitalii malakhovskyi, betterme 55
56. solves issue! vitalii malakhovskyi, betterme 56
57. event struct Event { let name: String let parameters: [String: String] } vitalii malakhovskyi, betterme 57
58. namespace with enum1 enum A { ... } 1 Because you cannot create enum if there is no cases vitalii malakhovskyi, betterme 58
59. why "A"? vitalii malakhovskyi, betterme 59
60. swiftgen produces • L - localization • S - storyboards • F - fonts • I - image assets • C - constants • CLR - colors vitalii malakhovskyi, betterme 60
61. A - analytics vitalii malakhovskyi, betterme 61
62. more namespace2 + satisfy swift type system enum Onboarding { ... } enum Profile { ... } 2 each category has each namespace vitalii malakhovskyi, betterme 62
63. static variables3 static let onbGoalsView = Event( name: "onb_goals_view", parameters: [ "screen_name": "onb_goals", "category": "onboarding" ] ) 3 if there are no arguments vitalii malakhovskyi, betterme 63
64. static functions4 static func onbGoalNextTap(goal: String) -> Event { return Event( name: "onb_goal_next_tap", parameters: [ "goal": goal, "screen_name": "onb_goals", "category": "onboarding" ] ) } 4 if there are some arguments vitalii malakhovskyi, betterme 64
65. all-together enum A { enum Onboarding { static let onbGoalsView: Event static func onbGoalNextTap(goal: String) -> Event } enum Profile { static let profileView: Event static func demoCardTap(card: Int) -> Event } } vitalii malakhovskyi, betterme 65
66. swift type system helps now class ViewModel { let analyticsTracker: AnalyticsTracker func handleWhatever() { analyticsTracker.track(A.Onboarding.onbGoalsView) } } vitalii malakhovskyi, betterme 66
67. in functions too class ViewModel { let analyticsTracker: AnalyticsTracker func handleHeight(with value: Double) { analyticsTracker.track( A.Onboarding.onbGoalNextTap(goal: value) ) } } vitalii malakhovskyi, betterme 67
68. Pros • events codegen • swift type system says ! • single source of analytics (versioned) • scalable vitalii malakhovskyi, betterme 68
69. generate events for vitalii malakhovskyi, betterme 69
70. Cons • still a lot of di (that's anouther story) vitalii malakhovskyi, betterme 70
71. a little bit of analytics in analytics vitalii malakhovskyi, betterme 71
72. average analytics ticket time without codegen 3.8 hours with codegen 2.8 hours codegen + redux middleware 1.1 hour vitalii malakhovskyi, betterme 72
73. but there still a lot of places for improvements vitalii malakhovskyi, betterme 73
74. improvements to be made • full cycle in one command (export to json, put into project, generate -> generate with one command) • algebraic data types support vitalii malakhovskyi, betterme 74
75. now: parameter: value: option1 or option2 example: static func someEvent(value: String) -> Event vitalii malakhovskyi, betterme 75
76. desired: enum Option { case option1 case option2 } static func someEvent(value: Option) -> Event vitalii malakhovskyi, betterme 76
77. lesson learned: analyse and improve your process vitalii malakhovskyi, betterme 77
78. !!!!!! vitalii malakhovskyi, betterme 78
79. purpleshirted Vitalii Malakhovskyi VitaliyMal vmalakhovskiy vitalii malakhovskyi, betterme 79
80. questions & answers vitalii malakhovskyi, betterme 80
81. vitalii malakhovskyi, betterme 81