From e0985d6bd6897c2be367e314357983b9bc03de2c Mon Sep 17 00:00:00 2001
From: Ben Hauser <ben@hauser.id>
Date: Wed, 20 May 2020 16:21:27 +0400
Subject: [PATCH] feat: allow use of web3 gas price strategies

---
 brownie/network/account.py | 2 +-
 brownie/network/web3.py    | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/brownie/network/account.py b/brownie/network/account.py
index 9920eb171..ca229f5e5 100644
--- a/brownie/network/account.py
+++ b/brownie/network/account.py
@@ -223,7 +223,7 @@ def _gas_limit(self, to: Optional["Accounts"], amount: int, data: Optional[str]
     def _gas_price(self) -> Wei:
         gas_price = CONFIG.active_network["settings"]["gas_price"]
         if isinstance(gas_price, bool) or gas_price in (None, "auto"):
-            return web3.eth.gasPrice
+            return web3.eth.generateGasPrice()
         return Wei(gas_price)
 
     def _check_for_revert(self, tx: Dict) -> None:
diff --git a/brownie/network/web3.py b/brownie/network/web3.py
index fa43af654..02da57321 100644
--- a/brownie/network/web3.py
+++ b/brownie/network/web3.py
@@ -10,6 +10,7 @@
 from web3 import HTTPProvider, IPCProvider
 from web3 import Web3 as _Web3
 from web3 import WebsocketProvider
+from web3.gas_strategies.rpc import rpc_gas_price_strategy
 
 from brownie._config import CONFIG, _get_data_folder
 from brownie.convert import to_address
@@ -132,6 +133,7 @@ def _resolve_address(domain: str) -> str:
 
 
 web3 = Web3()
+web3.eth.setGasPriceStrategy(rpc_gas_price_strategy)
 
 try:
     with _get_path().open() as fp: