Effect dispatch multiple Actions

effect-mergemap.ts

@Injectable()
export class AuthEffects {
  @Effect()
  LOGIN$ = this.actions$.ofType(LOGIN).pipe(
    map((action: PayloadableAction<string>) => action.payload),
    switchMap((code: string) =>
      this.googleService.googleLogin(code).pipe(
        mergeMap((response: HttpResponse<any>) => {
          if (response.status === 200) {
            const jwt: string = response.headers.get(NAME_HEADER_JWT);
            const actions: AuthAction[] = [];
            if (hasText(jwt)) {
              actions.push(new GoogleLoginSuccess(jwt));
              const fwt: string = response.headers.get(NAME_HEADER_JWT_FIREBASE);
              if (hasText(fwt)) {
                actions.push(new FirebaseLogin(fwt));
              }
              return (actions);
            }
          }
          return ([new GoogleLoginFail(response)]);
        }),
        catchError(err => of(new GoogleLoginFail(err)))
      )
    )
  );
}