[Do iOS '24] Ship your app on a Friday...and enjoy your weekend!

Transcript

1. Ship your app on a Friday and enjoy your weekend @POLPIELLADEV @POLPIELLADEV@IOSDEV.SPACE ! Do iOS 2024 /IN/POLPIELLADEV
2. Indie developer and content creator based in Barcelona Pol Hi! I’m Pol
4. polpiella.dev
5. ioscinewsletter.com
7. Mobile releases are difficult there is no denying that!
8. Accurate representation of an iOS Engineer being asked if they want to manage a release
17. Mobile releases can be risky. Let’s just not ship them on a Friday.
18. Gain confidence in your releases and ship anytime! A few tips to…
19. #1 Automate as much as possible
21. Fully automated
22. desc "Distributes a new build to App Store Connect" lane :distribute do version_number = git_branch.split("/", -1).last setup_ci xcode_select("/Applications/Xcode_16.app") sync_code_signing( type: "appstore", app_identifier: ["com.appdiggershq.fosi"], readonly: true ) increment_version_number(version_number: version_number, xcodeproj: "Fosi.xcodeproj") app_store_connect_api_key( key_id: ENV["APP_STORE_CONNECT_API_KEY_ID"], issuer_id: ENV["APP_STORE_CONNECT_ISSUER_ID"], key_content: ENV["APP_STORE_CONNECT_KEY_CONTENT"] ) build_number = latest_testflight_build_number + 1 increment_build_number(xcodeproj: "Fosi.xcodeproj", build_number: build_number) build_app(scheme: "Fosi", configuration: 'Release', output_name: "Fosi.ipa") upload_to_app_store(ipa: "Fosi.ipa", precheck_include_in_app_purchases: false) if !git_status(path: "Fosi.xcodeproj/project.pbxproj").empty? git_commit(path: "Fosi.xcodeproj/project.pbxproj", message: "[ci skip] [" release] Updating version") push_to_git_remote(remote: "origin", remote_branch: git_branch) end end
23. name: Distribute to the App Store Connect concurrency: group: $!" github.workflow !#-$!" github.ref !# cancel-in-progress: true permissions: contents: write on: push: branches: - 'release!!$' jobs: distribute: runs-on: [macos-14] steps: - uses: actions/checkout@v4 - uses: ruby/setup-ruby@v1 with: bundler-cache: true - run: bundle exec fastlane distribute env: APP_STORE_CONNECT_API_KEY_ID: $!" secrets.APP_STORE_CONNECT_API_KEY_ID !# APP_STORE_CONNECT_ISSUER_ID: $!" secrets.APP_STORE_CONNECT_ISSUER_ID !# APP_STORE_CONNECT_KEY_CONTENT: $!" secrets.APP_STORE_CONNECT_KEY_CONTENT !# MATCH_GIT_BASIC_AUTHORIZATION: $!" secrets.MATCH_GIT_BASIC_AUTHORIZATION !# MATCH_USERNAME: $!" secrets.MATCH_USERNAME !# MATCH_PASSWORD: $!" secrets.MATCH_PASSWORD !#
24. A comprehensive test suite will drastically improve confidence
25. A comprehensive test suite will drastically improve confidence* If you actually remember to run them!
26. Where should you run tests? PRs to the development branch Before uploading to ASC On Nightly or Scheduled Workflows
27. If there is a manual task that causes friction, automate it!
29. #2 Test your release pipeline
30. # App Target $ ModuleA.framework $ ModuleB.framework
32. $ ModuleA.framework $ ModuleB.framework # App Target
35. lane :nightly do # Let's make some magic happen % gym( project: "./AwesomeApp.xcodeproj", clean: true, derived_data_path: "./derived-data", output_directory: "./build", output_name: "AwesomeApp.ipa", scheme: "AwesomeApp", export_options: { provisioningProfiles: { "your.bundle.identifier" !% "Your Provisioning Profile Name", } } ) deliver( ipa: "build/AwesomeApp.ipa", verify_only: true ) end
36. name: Nightly on: schedule: - cron: '0 0 * * *' jobs: nightly: runs-on: macos-latest steps: - uses: actions/checkout@v2 - name: Run nightly lane run: bundle exec fastlane nightly
39. #3 Adopt a release strategy
44. Quality matters WAY MORE than quantity The silver bullet of release frequency
45. Release less, more o!en*! Use release trains to… *Always allowing ample time for beta testing and QA
46. You’ll unleash these benefits & Reduced risk ' Predictability ( Faster Feedback
48. #4 Use Feature Toggles
49. You can just turn it off! If something goes wrong in production…
50. enum ToggleableFeature: String { case homeSwiftUIRefactor = "homeRefactor" } struct HomeViewWrapper: View { @Environment(FeatureToggleService.self) var featureToggles var body: some View { if featureToggles.isOn(.homeSwiftUIRefactor) { HomeView() } else { LegacyHomeView() } } }
52. #5 Observe and Monitor
53. You first need to know that one is happening! To quickly react to an incident
54. Crashes & Performance
55. Crashes & Performance
56. Crashes & Performance
58. Analytics
59. Customer Satisfaction
60. Customer Satisfaction
61. User Feedback
62. User Feedback
63. User Feedback
65. CI/CD Velocity Metrics
67. #6 Do not release to all users at once
73. import AWSLambdaRuntime import AWSLambdaEvents import AppStoreConnect_Swift_SDK @main struct PausePhasedReleaseWebhook: SimpleLambdaHandler { func handle(_ event: APIGatewayV2Request, context: LambdaContext) async throws !& APIGatewayV2Response { guard let body = event.body else { return .init(statusCode: .badRequest) } !' Read the webhook payload and decide whehter to stop the release or not!!( } }
74. func handle(_ event: APIGatewayV2Request, context: LambdaContext) async throws !& APIGatewayV2Response { }
75. func handle(_ event: APIGatewayV2Request, context: LambdaContext) async throws !& APIGatewayV2Response { !' … !' Get latest live version let endpoint = APIEndpoint .v1 .apps .id("1234567890") .appStoreVersions .get(parameters: .init(filterPlatform: [.ios], filterAppVersionState: [.readyForDistribution])) let response = try await provider.request(endpoint) let allPhasedReleases = response.included? .compactMap { item in if case .appStoreVersionPhasedRelease(let phasedRelease) = item { return phasedRelease } return nil } guard let id = allPhasedReleases!)first!)id else { return .init(statusCode: .notFound) } }
76. func handle(_ event: APIGatewayV2Request, context: LambdaContext) async throws !& APIGatewayV2Response { !' … let attributes = AppStoreVersionPhasedReleaseUpdateRequest.Data.Attributes( phasedReleaseState: .paused ) let data = AppStoreVersionPhasedReleaseUpdateRequest.Data( type: .appStoreVersionPhasedReleases, id: id, attributes: attributes ) let requestBody = AppStoreVersionPhasedReleaseUpdateRequest(data: data) let phasedReleaseEndpoint = APIEndpoint .v1 .appStoreVersionPhasedReleases .id(id) .patch(requestBody) _ = try await provider.request(phasedReleaseEndpoint) return .init(statusCode: .ok) }
77. *Things that are out of your control and fail oMen *Your core business logic that your app depends on #7 Move risky* logic to the server!
81. Ship bug fixes worldwide for all versions of your app Within seconds…
82. # Your App • Risky logic • Risky models
83. $ Risky Models # Your App • Risky logic
84. $ Risky Models # Your App ⚙ Risky Logic (BE)
86. #8 Roll back to a stable version immediately
87. 1.0.0
88. 1.0.0 1.0.1
89. 1.0.0
90. 1.0.0 1.0.1
91. 1.0.0 1.0.1 1.0.2
92. 1.0.0 1.0.2
94. Gain confidence on your release process! Automate manual processes Use Feature Toggles Leverage the BE ecosystem Observe and Monitor Ship less, more o!en! Roll back to stable versions of your app How to use CI/CD to ship your mobile apps
95. And ship your apps on a Friday… or anytime! Gain confidence in your releases
96. Find me online! Last tickets!