Function provideEffects

modules/effects/src/provide_effects.ts:59–94

(
  ...effects:
    | Array<Type<unknown> | Record<string, FunctionalEffect>>
    | [Array<Type<unknown> | Record<string, FunctionalEffect>>]
)

 * ```
 */
export function provideEffects(
  ...effects:
    | Array<Type<unknown> | Record<string, FunctionalEffect>>
    | [Array<Type<unknown> | Record<string, FunctionalEffect>>]
): EnvironmentProviders {
  const effectsClassesAndRecords = effects.flat();
  const effectsClasses = getClasses(effectsClassesAndRecords);

  return makeEnvironmentProviders([
    effectsClasses,
    provideEnvironmentInitializer(() => {
      inject(ROOT_STORE_PROVIDER);
      inject(FEATURE_STATE_PROVIDER, { optional: true });

      const effectsRunner = inject(EffectsRunner);
      const effectSources = inject(EffectSources);
      const shouldInitEffects = !effectsRunner.isStarted;

      if (shouldInitEffects) {
        effectsRunner.start();
      }

      for (const effectsClassOrRecord of effectsClassesAndRecords) {
        const effectsInstance = isClass(effectsClassOrRecord)
          ? inject(effectsClassOrRecord)
          : effectsClassOrRecord;
        effectSources.addEffects(effectsInstance);
      }

      if (shouldInitEffects) {
        const store = inject(Store);
        store.dispatch(effectsInit());
      }
    }),
  ]);
}