42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
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# standard imports
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import logging
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# local imports
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from cic_registry import CICRegistry
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from cic_eth.eth.nonce import NonceOracle
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from cic_eth.eth import RpcClient
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logg = logging.getLogger(__name__)
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class TxFactory:
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"""Base class for transaction factory classes.
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:param from_address: Signer address to create transaction on behalf of
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:type from_address: str, 0x-hex
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:param rpc_client: RPC connection object to use to acquire account nonce if no record in nonce cache
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:type rpc_client: cic_eth.eth.rpc.RpcClient
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"""
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gas_price = 100
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"""Gas price, updated between batches"""
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def __init__(self, from_address, rpc_client):
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self.address = from_address
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self.default_nonce = rpc_client.w3.eth.getTransactionCount(from_address, 'pending')
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self.nonce_oracle = NonceOracle(from_address, self.default_nonce)
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TxFactory.gas_price = rpc_client.gas_price()
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logg.debug('txfactory instance address {} gas price'.format(self.address, self.gas_price))
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def next_nonce(self):
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"""Returns the current cached nonce value, and increments it for next transaction.
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:returns: Nonce
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:rtype: number
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"""
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return self.nonce_oracle.next()
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