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Manfred Steyer
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March 17, 2026
Programming
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Migration to Signals, Signal Forms, Resource API, and NgRx Signal Store @Angular Days 03/2026 Munich
Manfred Steyer
PRO
March 17, 2026
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Transcript
@ManfredSteyer @ManfredSteyer Migration to Signals, Signal Forms, Resource API, and
NgRx Signal Store Manfred Steyer, ANGULARarchitects.io
@ManfredSteyer Application Code as a Script
@ManfredSteyer Signals => Reactive Programming => Paradigm Shift!
@ManfredSteyer Marble Run
@ManfredSteyer Marble Run Data Binding
@ManfredSteyer Agenda #1 Signals #2 Resource API #3 Effects #4
SignalStore #5 Mutation API #6 Signal Forms
@ManfredSteyer About me… Manfred Steyer, ANGULARarchitects.io (Remote) Angular Workshops and
Consulting Google Developer Expert for Angular Blog, Books, Articles, and Talks about Angular Manfred Steyer
@ManfredSteyer @ManfredSteyer 9 Signals 101
@ManfredSteyer Signals: Simple Reactivity Signal as Producer 4711 Consumer read
set notify 4712
@ManfredSteyer @ManfredSteyer 11 Component With Signals flights = signal<Flight[]>([]); const
flights = await this.flightService.findAsPromise(from, to); this.flights.set(flights); @for(f of flights(); track f.id) { <flight-card [item]="f" /> }
@ManfredSteyer @ManfredSteyer 12 DEMO
@ManfredSteyer @ManfredSteyer 13 Race Conditions
@ManfredSteyer Resource Prevents Race Conditions Pancakes Sacher Cake Ice Cream
Pancakes
@ManfredSteyer Resource Prevents Race Conditions Pancakes Sacher Cake Ice Cream
Pancakes „switchMap semantics“
@ManfredSteyer @ManfredSteyer 16 Effects
@ManfredSteyer Connecting Reactive and Imperative World
@ManfredSteyer
@ManfredSteyer @ManfredSteyer 19 • Drawing on a canvas • Manual
DOM manipulations • Logging • Synching with LocalStore Ideal-typical Tasks Rendering (and similar tasks …) Stuff, you cannot do with data binding
@ManfredSteyer @ManfredSteyer 20 DEMO
@ManfredSteyer @ManfredSteyer 21 Architecture Rule #1 Derive state where possible
(sync: computed, async: Resource API) Architecture Rule #2 Avoid effects for triggering business logic! Architecture Rule #3 Reactive Helpers (e.g., Resource API) streamline your reactive flow Architecture Rules
@ManfredSteyer @ManfredSteyer 22 Stores
@ManfredSteyer Stores Streamline Reactive Flow Component Store "Intention" Signal sync/
async computed() computed()
@ManfredSteyer @ManfredSteyer 24 Two Reasons for a Store Manage State
Streamline Dataflow
@ManfredSteyer
@ManfredSteyer
@ManfredSteyer
@ManfredSteyer @ManfredSteyer 28 NGRX Signal Store
@ManfredSteyer NGRX Signal Store export const FlightBookingStore = signalStore( {
providedIn: 'root' }, […] );
@ManfredSteyer NGRX Signal Store export const FlightBookingStore = signalStore( {
providedIn: 'root' }, withState({ from: 'Paris', to: 'London', […] }), […] );
@ManfredSteyer NGRX Signal Store export const FlightBookingStore = signalStore( {
providedIn: 'root' }, withState({ from: 'Paris', to: 'London', […] }), withComputed(([…]) => ({ […] })), withMethods(([…]) => ({ })), withHooks({ […] }) );
@ManfredSteyer Extensions export const FlightBookingStore = signalStore( { providedIn: 'root'
}, withState({ from: 'Paris', to: 'London', […] }), withComputed(([…]) => ({ […] })), withMethods(([…]) => ({ })), withHooks({ […] }), withResource([…]}), withDevtools([…]}), withUndoRedo(), );
@ManfredSteyer @ManfredSteyer 33 DEMO
@ManfredSteyer @ManfredSteyer 34 Architecture, Concepts, Implementation Modern Angular 400+ pages,
PDF, EPUB Regular Free Updates! Q1/2026 Waiting List: (Early Bird Discount) angular-book.com
@ManfredSteyer Summary Signals: Reactive Programming Derive State Effects: Not for
Biz Logic Stores Streamline Reactivity
@ManfredSteyer Marble Run
@ManfredSteyer Marble Run Data Binding
@ManfredSteyer 38 [Social Media] Manfred Steyer [web] ANGULARarchitects.io Manfred Steyer
@ Manfred Steyer Slides & Examples Remote Company Workshops and Consulting http://angulararchitects.io