Standard Feature Store Module - Selectors

standard-feature-store-module-selectors.ts

import {
  createFeatureSelector,
  createSelector,
  MemoizedSelector
} from '@ngrx/store';

import { User } from '../../models';

import { State } from './state';

const getError = (state: State): any => state.error;

const getIsLoading = (state: State): boolean => state.isLoading;

const getUser = (state: State): any => state.user;

export const selectMyFeatureState: MemoizedSelector<
  object,
  State
> = createFeatureSelector<State>('myFeature');

export const selectMyFeatureError: MemoizedSelector<object, any> = createSelector(
  selectMyFeatureState,
  getError
);

export const selectMyFeatureIsLoading: MemoizedSelector<
  object,
  boolean
> = createSelector(selectMyFeatureState, getIsLoading);

export const selectMyFeatureUser: MemoizedSelector<
  object,
  User
> = createSelector(selectMyFeatureState, getUser);