add size guard

XRPLF · Mar 4, 2023 · e8e0d8b · e8e0d8b
1 parent 9f38cb9
commit e8e0d8b
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/ripple/rpc/impl/NFTokenID.cpp b/src/ripple/rpc/impl/NFTokenID.cpp
@@ -165,15 +165,18 @@ insertNFTokenID(
     if (auto const type = transaction->getTxnType(); type == ttNFTOKEN_MINT)
     {
         getNFTokenIDFromPage(transactionMeta, tokenIDResult);
-        response[jss::nftoken_id] = to_string(tokenIDResult.front());
+
+        if (tokenIDResult.size() > 0)
+            response[jss::nftoken_id] = to_string(tokenIDResult.front());
     }
     else if (type == ttNFTOKEN_ACCEPT_OFFER)
     {
         getNFTokenIDFromDeletedOffer(transactionMeta, tokenIDResult);
 
         // In brokered mode, there will be a duplicate NFTokenID in the
         // vector, but we don't have to do anything special here.
-        response[jss::nftoken_id] = to_string(tokenIDResult.front());
+        if (tokenIDResult.size() > 0)
+            response[jss::nftoken_id] = to_string(tokenIDResult.front());
     }
     else if (type == ttNFTOKEN_CANCEL_OFFER)
     {