code.dart

    setState(() {
        isLoading = true;
      });
      HttpsCallable callable =
          FirebaseFunctions.instance.httpsCallable('stripePayment');
      var serverData =
          await callable.call({'amount': ((widget.quoteModel.price +  4.55) * 100).toInt()});
      Logger().d(serverData.data);
      if(serverData.data == null){
        showSnackBar(context, null, 'Error Processing Payment');
        return;
      }
      String payIntent = serverData.data['client_secret'];

      await Stripe.instance.initPaymentSheet(
          paymentSheetParameters: SetupPaymentSheetParameters(
        applePay: false,
        googlePay: true,
        style: ThemeMode.light,
        testEnv: true,
        merchantCountryCode: 'CA',
        merchantDisplayName: AppCache.getUser.name,
        customerId: AppCache.getUser.uid,
        paymentIntentClientSecret: payIntent,
      ));

      await Stripe.instance.presentPaymentSheet();