Angular Architectures with Signals @ngPoland

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@ManfredSteyer ManfredSteyer Angular Architectures with Signals

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@ManfredSteyer Signal as Producer 4711 Consumer read set notify 4712

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@ManfredSteyer Manfred Steyer

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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 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, }); readonly flights = this.state.flights; readonly from = this.state.from; […] }

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@ManfredSteyer @Injectable({ providedIn: 'root' }) export class FlightBookingFacade { […] readonly selected = computed( () => this.flights().filter((f) => this.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 { […] swap(): void { patchState(this.state, (state) => ({ from: state.to, to: state.from })); } […] }

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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) => ({ from, to }) }

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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', […] }), withComputed(([…]) => ({ […] })), withMethods(([…]) => ({ })), withHooks({ […] }) );

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

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

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

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