feat: use legacy-style gas if network does not support eip1559

eth-brownie · Jan 30, 2024 · f3c0dd9 · f3c0dd9
1 parent 7ef523a
commit f3c0dd9
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/brownie/network/account.py b/brownie/network/account.py
@@ -728,7 +728,12 @@ def _make_transaction(
                 priority_fee = CONFIG.active_network["settings"]["priority_fee"] or None
 
         if priority_fee == "auto":
-            priority_fee = Chain().priority_fee
+            try:
+                priority_fee = Chain().priority_fee
+            except ValueError:
+                # fallback to legacy transactions if network does not support EIP1559
+                CONFIG.active_network["settings"]["priority_fee"] = None
+                priority_fee = None
 
         try:
             # if max fee and priority fee are not set, use gas price