43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
# standard imports
|
|
import logging
|
|
|
|
# local imports
|
|
from cic_registry import CICRegistry
|
|
from cic_eth.eth.nonce import NonceOracle
|
|
from cic_eth.eth import RpcClient
|
|
|
|
logg = logging.getLogger(__name__)
|
|
|
|
|
|
class TxFactory:
|
|
"""Base class for transaction factory classes.
|
|
|
|
:param from_address: Signer address to create transaction on behalf of
|
|
:type from_address: str, 0x-hex
|
|
:param rpc_client: RPC connection object to use to acquire account nonce if no record in nonce cache
|
|
:type rpc_client: cic_eth.eth.rpc.RpcClient
|
|
"""
|
|
|
|
gas_price = 100
|
|
"""Gas price, updated between batches"""
|
|
|
|
|
|
def __init__(self, from_address, rpc_client, registry=CICRegistry):
|
|
self.address = from_address
|
|
self.registry = registry
|
|
|
|
self.default_nonce = rpc_client.w3.eth.getTransactionCount(from_address, 'pending')
|
|
self.nonce_oracle = NonceOracle(from_address, self.default_nonce)
|
|
|
|
TxFactory.gas_price = rpc_client.gas_price()
|
|
logg.debug('txfactory instance address {} gas price'.format(self.address, self.gas_price))
|
|
|
|
|
|
def next_nonce(self, uuid, session=None):
|
|
"""Returns the current reserved nonce value, and increments it for next transaction.
|
|
|
|
:returns: Nonce
|
|
:rtype: number
|
|
"""
|
|
return self.nonce_oracle.next_by_task_uuid(uuid, session=session)
|