From 90d57d42c5b8a1abafcca2cb7bd2874615df56d4 Mon Sep 17 00:00:00 2001
From: derpy-duck <115193320+derpy-duck@users.noreply.github.com>
Date: Fri, 14 Jul 2023 21:44:03 +0000
Subject: [PATCH] delivery hash comment

---
 src/HelloWormhole.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/HelloWormhole.sol b/src/HelloWormhole.sol
index 74fd9d6..4b51a38 100644
--- a/src/HelloWormhole.sol
+++ b/src/HelloWormhole.sol
@@ -38,7 +38,7 @@ contract HelloWormhole is IWormholeReceiver {
         bytes[] memory, // additionalVaas
         bytes32, // address that called 'sendPayloadToEvm' (HelloWormhole contract address)
         uint16 sourceChain,
-        bytes32 // deliveryHash
+        bytes32 // deliveryHash - this can be stored in a mapping deliveryHash => bool to prevent duplicate deliveries
     ) public payable override {
         require(msg.sender == address(wormholeRelayer), "Only relayer allowed");
         (string memory greeting, address sender) = abi.decode(payload, (string, address));