funga/crypto_dev_signer/eth/helper/tx.py

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# standard imports
import logging
# local imports
from crypto_dev_signer.helper import TxExecutor
from crypto_dev_signer.error import NetworkError
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logg = logging.getLogger()
logging.getLogger('web3').setLevel(logging.CRITICAL)
logging.getLogger('urllib3').setLevel(logging.CRITICAL)
class EthTxExecutor(TxExecutor):
def __init__(self, w3, sender, signer, chain_id, verifier=None, block=False):
self.w3 = w3
nonce = self.w3.eth.getTransactionCount(sender, 'pending')
super(EthTxExecutor, self).__init__(sender, signer, self.translator, self.dispatcher, self.reporter, nonce, chain_id, self.fee_helper, self.fee_price_helper, verifier, block)
def fee_helper(self, tx):
estimate = self.w3.eth.estimateGas(tx)
if estimate < 21000:
estimate = 21000
logg.debug('estimate {} {}'.format(tx, estimate))
return estimate
def fee_price_helper(self):
return self.w3.eth.gasPrice
def dispatcher(self, tx):
error_object = None
try:
tx_hash = self.w3.eth.sendRawTransaction(tx)
except ValueError as e:
error_object = e.args[0]
logg.error('node could not intepret rlp {}'.format(tx))
if error_object != None:
raise NetworkError(error_object)
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return tx_hash
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def reporter(self, tx):
return self.w3.eth.getTransactionReceipt(tx)
def translator(self, tx):
if tx.get('feePrice') != None:
tx['gasPrice'] = tx['feePrice']
del tx['feePrice']
if tx.get('feeUnits') != None:
tx['gas'] = tx['feeUnits']
del tx['feeUnits']
return tx