Architectures with Angular Signals @ngBucharest

@ManfredSteyer ManfredSteyer Architectures with Angular Signals ngBucharest

@ManfredSteyer Signal as Producer 4711 Consumer read set notify 4712

@ManfredSteyer flights = signal<Flight[]>([]); const flights = await this.flightService.findAsPromise(from, to);
this.flights.set(flights); <div *ngFor="let f of flights()"> <flight-card [item]="f" /> </div>

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

@ManfredSteyer

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

private _flights = signal<Flight[]>([]); readonly flights = this._flights.asReadonly(); private _from = signal('Hamburg'); readonly from = this._from.asReadonly(); private _to = signal('Graz'); readonly to = this._to.asReadonly(); […] }

private state = signal({ from: 'Hamburg', to: 'Graz', flights: [] as Flight[], […] }); […] }

private state = signal({ from: 'Hamburg', to: 'Graz', flights: [] as Flight[], […] }); flights = computed(() => this.state().flights); from = computed(() => this.state().from); […] }

@ManfredSteyer

@ManfredSteyer select(selector) selectSignal(selector)

@ManfredSteyer

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

selected = selectSignal( () => this.flights().filter((f) => this.basket()[f.id]); […] }

selected2 = selectSignal( this.flights, this.basket, (flights, basket) => flights.filter((f) => basket[f.id]) ); […] }

updateCriteria(from: string, to: string): void { patchState(this.state, { from, to }); } […] }

updateCriteria(from: string, to: string): void { patchState(this.state, state => ({ ...state, from, to })); } […] }

updateCriteria(from: string, to: string): void { patchState(this.state, updateRoute(from, to)); } […] } function updateRoute<T>(from: string, to: string) { return (state: T) => ({ ...state, from, to }) }

@ManfredSteyer

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

withState({ from: 'Paris', to: 'London', […] }), […] );

withState({ from: 'Paris', to: 'London', […] }), withSignals(([…]) => ({ […] })), withMethods(([…]) => ({ })), withHooks({ […] }), withCallState() );

@ManfredSteyer

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

@ManfredSteyer const BooksStore = signalStore( withLoadEntities<Book>(BookService), withLoadEntities<Author>(AuthorService), );

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

@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

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

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

Architectures with Angular Signals @ngBucharest

Architectures with Angular Signals @ngBucharest

More Decks by Manfred Steyer

Other Decks in Programming

Featured

Transcript