What are some examples of using NgRx Entity in Angular?

What are some examples of using NgRx Entity in Angular?

NgRx Entity simplifies managing collections of entities in Angular. For example, you can use it to manage a list of products.

Can you show me a code snippet for adding an entity?

Sure! Here's a simple example:

import { EntityState, EntityAdapter, createEntityAdapter } from '@ngrx/entity';

export interface Product {
  id: number;
  name: string;
}

export interface State extends EntityState<Product> {}

export const adapter: EntityAdapter<Product> = createEntityAdapter<Product>();

export const initialState: State = adapter.getInitialState();

export function addProduct(state: State, product: Product) {
  return adapter.addOne(product, state);
}

How do I select entities from the store?

You can use selectors provided by NgRx Entity. For example:

import { createSelector } from '@ngrx/store';

export const selectAllProducts = createSelector(
  (state: State) => state.products,
  adapter.getSelectors().selectAll
);

What are the benefits of using NgRx Entity?

NgRx Entity provides a structured way to manage collections, improves performance with memoized selectors, and reduces boilerplate code.