Upgrading to Angular 2 using ngUpgrade

by Matt Steele

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Upgrading to Angular 2 @mattdsteele https://steele.blue

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Everything is terrible

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Everything is terrible Your App

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Upgrade Options

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Upgrade Options

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Upgrade Options Big Bang Rewrite

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Upgrade Options Big Bang Rewrite ngForward

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Upgrade Options Big Bang Rewrite ngForward ngUpgrade

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Upgrade Options Big Bang Rewrite ngForward ngUpgrade

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ngYourAppIsSaved

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Angular 2 Module

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Angular 2 Module import { UpgradeAdapter } from 'angular2/upgrade';

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Run In Parallel

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Component Interoperability

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Component Interoperability In Both Directions*

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What can be upgraded?

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Components & Services

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Angular 1 Components

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Angular 1 Components Must Be:

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Angular 1 Components restrict: 'E' Must Be:

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Angular 1 Components restrict: 'E' scope: {}, Must Be:

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Angular 1 Components restrict: 'E' scope: {}, bindToController: {}, Must Be:

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Angular 1 Components restrict: 'E' scope: {}, bindToController: {}, controllerAs, Must Be:

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Angular 1 Components restrict: 'E' scope: {}, bindToController: {}, controllerAs, template Must Be:

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Angular 1 Components Can Be:

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Angular 1 Components Can Be: transclude: true,

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Angular 1 Components Can Be: transclude: true, require

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Angular 1 Components Must Not Be: compile replace: true priority terminal

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.component()

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Angular 1 Services

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Angular 1 Services Pretty Straightforward

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Angular 2 Components

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Angular 2 Services

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Transclusion/Content Projection

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Transclusion/Content Projection

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Transclusion/Content Projection

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Component Tree

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Component Tree

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angular.io/docs/ts/latest/guide/upgrade.html

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Upgrade Strategy

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Stuff You Can Do Now

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Stuff You Can Do Now • Code in TypeScript/ES6

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Stuff You Can Do Now • Code in TypeScript/ES6 • Use a module loader

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Stuff You Can Do Now • Code in TypeScript/ES6 • Use a module loader • Convert factories/services/providers to Services (ES6 Classes)

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Stuff You Can Do Now • Code in TypeScript/ES6 • Use a module loader • Convert factories/services/providers to Services (ES6 Classes) • Convert Directives to Components

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Upgrade Time

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Upgrade Time • Launch as hybrid app (UpgradeAdapter)

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Upgrade Time • Launch as hybrid app (UpgradeAdapter) • Migrate components

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In The Future

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In The Future Drop ng1

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In The Future Drop ng1 Bask in glory

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Let's Upgrade Something

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Super Bowl Squares http://www.zpoolz.com/main/Poolz_Football/2015/2016sbs5.jpg

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Services Datasets Data

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square-cell Components superbowl-header superbowl-squares square-cell square-cell

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square-cell Components + Services superbowl-header superbowl-squares square-cell square-cell Datasets Data

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square-cell Angular 1 Components superbowl-header superbowl-squares square-cell square-cell Datasets Data

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square-cell 1. Boot with UpgradeAdapter superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter

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square-cell 2. Services superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter

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square-cell 3. Add Top Level App superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter superbowl-app

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square-cell 4. Header Component superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter superbowl-app

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square-cell 5. App superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter superbowl-app

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square-cell 6. Cells superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter superbowl-app

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square-cell 7. Squares superbowl-header superbowl-squares square-cell square-cell Datasets Data UpgradeAdapter superbowl-app

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square-cell 8. Bootstrap with ng2 superbowl-header superbowl-squares square-cell square-cell Datasets Data superbowl-app

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Gotchas

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Testing

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Testing • Testing w/o Angular? Easy

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Testing • Testing w/o Angular? Easy • Good recipes for ng2 tests  https://medium.com/google-developer-experts/angular-2-unit- testing-with-jasmine-defe20421584#.pevppwgy2  https://speakerdeck.com/cironunes/unit-testing-in-angular-2

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End To End Tests

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Testing Hybrid Components superbowl-squares Datasets Data http://stackoverﬂow.com/questions/36827715/testing-an-angular-app-with- ngupgrade-fails-with-unknown-provider-ng2-injector

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Testing Hybrid Components https://github.com/mattdsteele/football-squares/commit/ 77c1d42d4ef5e1546f1de46efa56db4caff232f7 superbowl-header superbowl-squares Datasets Data superbowl-app

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Template Syntax square-cell superbowl-squares square-cell square-cell

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Template Syntax square-cell superbowl-squares square-cell square-cell

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Template Syntax square-cell superbowl-squares square-cell square-cell

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Bookmark These Sites • http://angularjs.blogspot.com/2015/08/angular-1-and-angular-2-coexistence.html • https://angular.io/docs/ts/latest/guide/upgrade.html • http://blog.thoughtram.io/angular/2015/10/24/upgrading-apps-to-angular-2-using-ngupgrade.html • http://teropa.info/blog/2015/10/18/refactoring-angular-apps-to-components.html

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/mattdsteele/football-squares @mattdsteele https://steele.blue

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Routing • Component Router • UI Router • http://slides.com/christhielen/ui-router-ng1-to-ng2 • https://youtu.be/mnkG-RRkZtU