From c0718d4db9b31e1c9bd953bd3c696ca92c94ceac Mon Sep 17 00:00:00 2001
From: Jackson Lee <62976701+jaxnz@users.noreply.github.com>
Date: Mon, 15 Aug 2022 00:29:25 +1200
Subject: [PATCH] fix: No payment sheet has been initialized yet on iOS (#860)

---
 packages/stripe/lib/src/stripe.dart | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/stripe/lib/src/stripe.dart b/packages/stripe/lib/src/stripe.dart
index cd6cf8e83..18a92a497 100644
--- a/packages/stripe/lib/src/stripe.dart
+++ b/packages/stripe/lib/src/stripe.dart
@@ -329,6 +329,7 @@ class Stripe {
   Future<void> initPaymentSheet({
     required SetupPaymentSheetParameters paymentSheetParameters,
   }) async {
+    assert(!(paymentSheetParameters.applePay == true && instance._merchantIdentifier == null), 'merchantIdentifier must be specified if you are using Apple Pay. Please refer to this article to get a merchant identifier: https://support.stripe.com/questions/enable-apple-pay-on-your-stripe-account');
     await _awaitForSettings();
     await _platform.initPaymentSheet(paymentSheetParameters);
   }