e-book

purchase-contract.effects.ts

loadPurchaseContract$ = createEffect(
    () => this.actions$.pipe(
      ofType(PurchaseContractActions.loadPurchaseContract),
      map(action => action.address),
      switchMap(address => {

        return this.purchaseSrv.loadPurchaseContract(address).pipe(
          map(contract => 
             PurchaseContractActions.loadPurchaseContractSuccess({ contract })),
          catchError((err: Error) => 
             of(this.handleError(err), SpinnerActions.hide()))
        );
      })

    ));