The method eth_maxPriorityFeePerGas does not exist/is not available #217
Description
Hi,
I'm trying to perform a swap on spookyswap (fantom chain) using Uniswap-python.
However, I'm getting the following ValueError:
ValueError: {'code': -32601, 'message': 'the method eth_maxPriorityFeePerGas does not exist/is not available'}
I tried using multiple RPCs but all of them gave the same output.
NOTE:
I modified _netid_to_name in constats.py so that chainId 250 (fantom) is acceptable.
Code:
from uniswap import Uniswap
fantom_provider = 'https://rpc.ftm.tools/'
spookyswap_router_contract_addr = "0xf491e7b69e4244ad4002bc14e878a34207e38c29"
spookyswap_factory_contract_addr = "0x152eE697f2E276fA89E96742e9bB9aB1F2E61bE3"
weth_ftm = "0x74b23882a30290451A17c44f4F05243b6b58C76d"
dai_ftm = "0x8d11ec38a3eb5e956b052f67da8bdc9bef8abf3e"
amount = 0.00000001
spookyswap = Uniswap(address=spookyswap_address, private_key=spookyswap_private_key, version=version,
router_contract_addr=spookyswap_router_contract_addr,
factory_contract_addr=spookyswap_factory_contract_addr,
provider=fantom_provider)
spookyswap.make_trade(weth_ftm, dai_ftm, int(amount * 10**18), slippage = 0.2)Full Error message:
Approving 0x74b23882a30290451A17c44f4F05243b6b58C76d...
Traceback (most recent call last):
File "/Users/kuba/PycharmProjects/project/playground.py", line 111, in <module>
print(spookyswap.make_trade(weth_ftm, dai_ftm, int(amount * 10**18), slippage = 0.2))
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/uniswap/decorators.py", line 29, in approved
self.approve(token)
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/uniswap/uniswap.py", line 1053, in approve
tx = self._build_and_send_tx(function)
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/uniswap/uniswap.py", line 1087, in _build_and_send_tx
transaction = function.buildTransaction(tx_params)
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/contract.py", line 1079, in buildTransaction
return build_transaction_for_function(
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/contract.py", line 1648, in build_transaction_for_function
prepared_transaction = fill_transaction_defaults(web3, prepared_transaction)
File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/_utils/transactions.py", line 121, in fill_transaction_defaults
default_val = default_getter(web3, transaction)
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/_utils/transactions.py", line 71, in <lambda>
web3.eth.max_priority_fee + (2 * web3.eth.get_block('latest')['baseFeePerGas'])
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/eth.py", line 549, in max_priority_fee
return self._max_priority_fee()
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/module.py", line 57, in caller
result = w3.manager.request_blocking(method_str,
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/manager.py", line 198, in request_blocking
return self.formatted_response(response,
File "/Users/kuba/PycharmProjects/project/venv/lib/python3.9/site-packages/web3/manager.py", line 171, in formatted_response
raise ValueError(response["error"])
ValueError: {'code': -32601, 'message': 'the method eth_maxPriorityFeePerGas does not exist/is not available'}