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@ManfredSteyer ManfredSteyer Architectures with Angular Signals ngBucharest

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@ManfredSteyer Signal as Producer 4711 Consumer read set notify 4712

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@ManfredSteyer flights = signal([]); const flights = await this.flightService.findAsPromise(from, to); this.flights.set(flights);

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@ManfredSteyer Simple Reactive Building Block Fine-grained CD Zone-less CD Interop with RxJS No need to unsubscribe

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@ManfredSteyer

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@ManfredSteyer

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@ManfredSteyer

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@ManfredSteyer

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@ManfredSteyer

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] private _flights = signal([]); readonly flights = this._flights.asReadonly(); async load(from: string, to: string) { const flights = await […]; this._flights.set(flights); } }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] private _flights = signal([]); readonly flights = this._flights.asReadonly(); async load(from: string, to: string) { const flights = await […]; this._flights.set(flights); } }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] private _flights = signal([]); readonly flights = this._flights.asReadonly(); private _from = signal('Hamburg'); readonly from = this._from.asReadonly(); private _to = signal('Graz'); readonly to = this._to.asReadonly(); […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] private state = signal({ from: 'Hamburg', to: 'Graz', flights: [] as Flight[], […] }); […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] private state = signal({ from: 'Hamburg', to: 'Graz', flights: [] as Flight[], […] }); flights = computed(() => this.state().flights); from = computed(() => this.state().from); […] }

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@ManfredSteyer

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@ManfredSteyer select(selector) selectSignal(selector)

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { private state = signalState({ from: 'Paris', to: 'London', flights: [] as Flight[], basket: {} as Record, }); flights = this.state.flights; from = this.state.from; […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] selected = selectSignal( () => this.flights().filter((f) => this.basket()[f.id]); […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] selected2 = selectSignal( this.flights, this.basket, (flights, basket) => flights.filter((f) => basket[f.id]) ); […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] updateCriteria(from: string, to: string): void { patchState(this.state, { from, to }); } […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] updateCriteria(from: string, to: string): void { patchState(this.state, state => ({ ...state, from, to })); } […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] updateCriteria(from: string, to: string): void { patchState(this.state, updateRoute(from, to)); } […] } function updateRoute(from: string, to: string) { return (state: T) => ({ ...state, from, to }) }

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@ManfredSteyer

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@ManfredSteyer export const FlightBookingStore = signalStore( { providedIn: 'root' }, […] );

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@ManfredSteyer export const FlightBookingStore = signalStore( { providedIn: 'root' }, withState({ from: 'Paris', to: 'London', […] }), […] );

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@ManfredSteyer export const FlightBookingStore = signalStore( { providedIn: 'root' }, withState({ from: 'Paris', to: 'London', […] }), withSignals(([…]) => ({ […] })), withMethods(([…]) => ({ })), withHooks({ […] }), withCallState() );

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@ManfredSteyer

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@ManfredSteyer const BooksStore = signalStore( withEntities({ collection: 'book' }), withEntities({ collection: 'author' }) );

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@ManfredSteyer const BooksStore = signalStore( withLoadEntities(BookService), withLoadEntities(AuthorService), );

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@ManfredSteyer Free eBook (5th Edition) ANGULARarchitects.io/book Module Federation & Nx

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@ManfredSteyer • Maintainable Architectures • 🆕🔥 Standalone Components & APIs • Micro Frontends and Module Federation • 🆕🔥 Signals and Your Architecture: CD, NGRX, RxJS-Interop Public or Company Training, Remote or On-Site Next: Nov 27 to Nov 30, 2023 https://www.angulararchitects.io

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@ManfredSteyer Services + Signals equal NGRX NGRX Signal Store Different Flavors Custom Features

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@ManfredSteyer d Slides & Examples Remote Company Workshops and Consulting http://angulararchitects.io