entity-metadata.ts

import { PropsFilterFnFactory, EntityMetadataMap } from '@ngrx/data';

/**
 * Filter for entities whose name matches the case-insensitive pattern
 * The filter works on ALL properties
 * @param {T[]} entities
 * @param {string} pattern
 * @return {any[]}
 */
export function textFilter<T extends { title: string; description: string }>(
  entities: T[],
  pattern: string
) {
  return PropsFilterFnFactory(['title', 'description'])(entities, pattern);
}

const entityMetadata: EntityMetadataMap = {
  Todo: {
    filterFn: textFilter
  }
};

export const entityConfig = {
  entityMetadata
};