def approval_function(token: ERC20Token, spender_address: Address,
spender_name: str):
if token.allowance_of(Address(token.web3.eth.defaultAccount),
spender_address) < Wad(2**128 - 1):
logger = logging.getLogger("api")
logger.info(
f"Approving {spender_name} ({spender_address}) to access our {token.name()} directly"
)
if not token.approve(spender_address).transact():
raise RuntimeError("Approval failed!")
def approval_function(token: ERC20Token, spender_address: Address,
spender_name: str):
if token.allowance_of(tx_manager.address,
spender_address) < Wad(2**128 - 1):
logger = logging.getLogger("api")
logger.info(
f"Approving {spender_name} ({spender_address}) to access our {token.name()}"
f" via TxManager {tx_manager.address}")
if not tx_manager.execute([], [
(token.approve(spender_address).invocation())
]).transact():
raise RuntimeError("Approval failed!")