Thinking beyond platforms with KMP

Transcript

1. @ashishkrishnan Thinking beyond platforms with KMP Synchronized Development @iamBedant @gojektech
2. Journey What this talk is about? Challenges Engineering
3. Architecture Engineering Process Tooling
4. GoPartner
5. GoPartner Android 8+ years assisting driver partners 150+ features
6. GoPartner iOS 2+ years 30+ features Available in Singapore
7. iOS Android 100% Native Business logic + User Interface Viper Arch 100% Native Business logic + User Interface Clean + MVP 2X effort 100% code duplication
8. More ef f icient?
9. Goals for synchronized development
10. Uni f ied ways of working
11. Accelerate feature parity on iOS
12. Eliminate Code Fragmentation
13. Expedite time to market
14. sustainable engineering
15. Options?
16. Flutter Web KMP
17. Right choice?
18. It Depends
19. Framework Integration People
20. Framework Code Sharing App Size Performance Platform Features Development Cycle & Deployment Maturity & Ownership
21. Rewrite vs. Reuse Existing Investment Fallback Integration
22. Learning Curve Talent Pool People
23. The Chosen One Kotlin Multiplatform
25. Viper Clean + MVP
26. Architecture Criteria
27. Architecture Criteria Platform Agnostic Scalable & Extensible Ease of debugging Learning curve
28. Viper Clean + MVP Mobius
29. Mobius Mobius.kt https://github.com/DrewC a rlson/mobius.kt
30. Mobius.kt Go-Mobius
31. Go-Mobius In-house telemetry Trade-o ff s Stability Headless & Tooling
32. Initiating Synchronisation Sequence
33. Platform Boundaries Unidirectional GoMobius Domain Presentation UI Injecting multiplatform Bridge Bridge commonMain commonTest
34. Domain Presentation UI Injecting multiplatform Bridge Bridge commonMain commonTest Peripherals/SDKs
35. Existing Inventories & Investments
36. Bridges Shared SDK on GoPartner iOS Custom SDK on GoPartner Android Custom
37. Contracts expect/actual Over
38. GoP a rtner Android iOS App Contracts Shared
39. 20+ Locked contracts
41. Whiteboarding
42. Whiteboarding State machines —>
43. State machines St a rter St a te Lo a ding Succes F a ilure E ff ects Events Render
44. Parallel Execution —> State machines
45. Parallel Execution D a t a Models Upd a te E ff ect H a ndlers Event Sources Glue code Renderer To be done f irst
46. —> Parallel Execution D a t a Models Upd a te E ff ect H a ndlers Event Sources Glue code Renderer P a r a llel
48. Release Trains
49. GoP a rtner Android App
50. GoP a rtner Android App
51. GoP a rtner Android App iOS App Submodule Submodule Submodule
52. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m
53. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m
54. Monorepo | Artifact
55. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m
56. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform
57. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC
58. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
59. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
60. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 FA FA- a ndroid FA-ios a rm64 FA-iosX64 FA-iossim..
61. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
62. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
63. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
64. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
65. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
66. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 XcFr a mework
67. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Fe a tureA
68. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Fe a tureA
69. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Fe a tureA Fe a tureB
70. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Fe a tureA Fe a tureB
71. Fe a tureA Fe a tureB GoMobius GoMobius
72. Fe a tureA Fe a tureB @interface FeatureBGoMobius : ... @interface FeatureAGoMobius : ... Objc He a der Objc He a der GoMobius GoMobius
73. Fe a tureA Fe a tureB @interface FeatureBGoMobius : ... @interface FeatureAGoMobius : ... Objc He a der Objc He a der __attribute__((swift_name("GoMobius"))) __attribute__((swift_name("GoMobius"))) GoMobius GoMobius
74. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Fe a tureA Fe a tureB
75. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1
76. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Umbrell a
77. iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a FA- V 0.0.1 Umbrell a export(project(:featureA))
78. iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a FA- V 0.0.1 Umbrell a export(project(:featureA)) export(project(:featureB))
79. iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a FA- V 0.0.1 Umbrell a export(project(:featureA)) export(project(:featureB)) export(project(:gomobius))
80. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Umbrell a
81. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Umbrell a
82. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Umbrell a
83. iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a FA- V 0.0.1 Umbrell a export( export( export( project(:featureA) project(:featureB) project(:gomobius) ) ) )
84. iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a Umbrell a FA- V 0.0.1 FA FA-ios a rm64 FA-iosX64 FA-iossim.. FA- a ndroid export( export( export( project(:featureA) project(:featureB) project(:gomobius) ) ) )
85. iOS Ap Submod Submod Submod Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB a Umbrell a FA- V 0.0.1 FA FA-ios a rm64 FA-iosX64 FA-iossim.. FA- a ndroid export( export( export( ) ) ) “com.gojek.partner:FA:0.0.1” “com.gojek.partner:FB:0.0.2” “com.gojek.partner:goMobius:0.0.2”
86. GoP a rtner Android App iOS App Submodule Submodule Submodule Gojek Artif a ctory GoMobius Clickstre a m GoP a rtnerMultipl a tform Fe a tureA Fe a tureB Fe a tureC FA- V 0.0.1 Umbrell a
87. Accelerating mobile engineering
88. GoPartner KMP Plugin
89. GoPartner KMP Plugin
90. Challenges with iOS
91. Challenges with iOS Suspend functions and Flows in swift
92. protected val ratingSummeryModel : StateFlow<CustomerRatingSummeryModel> Kotlin
93. protected val ratingSummeryModel : StateFlow<CustomerRatingSummeryModel> Kotlin @property (readonly) FmwKotlinUnit *(^(^ratingsSummaryModelNative)(FmwKotlinUnit *(^)(FmwCustomerRatingSummeryModel *, FmwKotlinUnit *), FmwKotlinUnit *(^) (NSError * _Nullable, FmwKotlinUnit *)))(void) __attribute__((swift_name(“ratingsSummaryModelNative"))); Objective C
94. Swift private func listenForModelUpdate() { createPublisher(for: ratingsSummaryModelNative) .receive(on: DispatchQueue.main) .sink(receiveCompletion: { _ in }, receiveValue: { [weak self] value in guard let renderer = self else { return } value.renderState(renderer: renderer) } ).store(in: &cancelStore) } KMP-NativeCoroutines
95. Other issues with iOS Suspend functions and Flows in swift Enums and Sealed Classes SKIE Crash Logs on iOS Enums and Sealed Classes, Default Arguments, Global Functions Cr a shKiOS KMM Bridge Kermit Xcode-kotlin
96. Next?
97. Integration Architecture Peripherals Framework
98. Adoption
99. Stack Ranker
100. Stack Ranker
102. 20+ features 73-79% code sharing
103. Maximize impact?
104. Bridges Shared SDK Android Custom SDK iOS Custom 20+ Peripherals/SDKs
105. Peripherals/SDKs Bridges Shared SDK SDK Custom Custom
106. Peripherals/SDKs Bridges Shared SDK SDK Custom Custom
107. Peripherals/SDKs Bridges Shared SDK SDK Custom
108. 80-85% code sharing
110. 73-79% Adoption with features 80-90% Peripherals TimeTravel* Middleware*
111. 90-100%* Compose Multiplatform Open Source* TimeTravel* Middleware*
112. Thank you. @ashishkrishnan @iamBedant