Use call instead of transfer in case receiver fallback exceeds 2300 gas

2022-08-09 13:23:03 -04:00 · 2022-08-09 13:23:03 -04:00 · dc7778a24f
parent d8c3d4e62f
commit dc7778a24f
1 changed files with 2 additions and 1 deletions
--- a/contracts/Rln.sol
+++ b/contracts/Rln.sol
@ -85,7 +85,8 @@ contract RLN {
 		members[_pubkeyIndex] = 0;

 		// refund deposit
-		receiver.transfer(MEMBERSHIP_DEPOSIT);
+		(bool sent, _) = receiver.call{value: MEMBERSHIP_DEPOSIT}("");
+        require(sent, "transfer failed");

 		emit MemberWithdrawn(pubkey, _pubkeyIndex);
 	}