Merge pull request #1727 from eth-brownie/default-eip1559

Default to EIP1559-style transactions on live networks
eth-brownie · Jan 30, 2024 · 2c83611 · 2c83611
2 parents 762f4b4 + f3c0dd9
commit 2c83611
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Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/brownie/data/default-config.yaml b/brownie/data/default-config.yaml
@@ -27,9 +27,9 @@ networks:
     live:
         gas_limit: auto
         gas_buffer: 1.1
-        gas_price: auto
+        gas_price: null
         max_fee: null
-        priority_fee: null
+        priority_fee: auto
         reverting_tx_gas_limit: false
         default_contract_owner: false
 

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