Scalable Angular architecture fundamentals
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TL;DR: Define clear module boundaries, use consistent change detection strategies, and separate smart and presentational components. Keep state predictable and effects contained.
Layering and modules
- Core and shared modules with single responsibility.
- Feature modules that own routes and state.
Component communication
- Input and Output for parent-child communication.
- Services for cross-cutting concerns.
- Store for shared app state.
Change detection strategies
- Default for simple components.
- OnPush for performance and predictable updates.
Smart and presentational components
- Smart components fetch data and coordinate actions.
- Presentational components render inputs and raise outputs.
State and effects
Keep actions and reducers pure. Side effects like API calls belong in effects where they can be tested and monitored.
FAQ
Should I use signals or RxJS
Both work. Choose one approach per feature and stay consistent to reduce cognitive load.
When should I split modules
When a feature grows and introduces new routes, services, or heavy assets, split it for faster builds and clearer ownership.
Cast this in your project
- Scaled - Architecting Scalable Enterprise Angular Applications for deeper patterns.
- Scaled - Course with hands-on modules.
Image credit: Photo by Daniil Ustinov: https://www.pexels.com/photo/modern-architectural-hallway-with-traffic-cone-35069885/