chainlib-eth/chainlib/eth/cli/rpc.py

71 lines
2.2 KiB
Python

# external imports
from chainlib.cli import Rpc as BaseRpc
from chainlib.eth.connection import EthHTTPConnection
# local imports
from chainlib.eth.gas import (
OverrideGasOracle,
RPCGasOracle,
)
from chainlib.eth.nonce import (
OverrideNonceOracle,
RPCNonceOracle,
)
class Rpc(BaseRpc):
"""Convenience constructor to set Ethereum defaults for chainlib cli Rpc object
"""
def __init__(self, wallet=None):
super(Rpc, self).__init__(EthHTTPConnection, wallet=wallet)
def connect_by_config(self, config):
"""
If the standard arguments for nonce and fee price/price have been defined (which generate the configuration keys "_NONCE", "_FEE_PRICE" and "_FEE_LIMIT" respectively) , the corresponding overrides for fee and nonce generators will be defined.
"""
super(Rpc, self).connect_by_config(config)
if self.can_sign():
nonce = None
try:
nonce = config.get('_NONCE')
except KeyError:
pass
if nonce != None:
self.nonce_oracle = OverrideNonceOracle(self.get_sender_address(), nonce, id_generator=self.id_generator)
else:
self.nonce_oracle = RPCNonceOracle(self.get_sender_address(), self.conn, id_generator=self.id_generator)
fee_price = None
fee_limit = None
try:
fee_price = config.get('_FEE_PRICE')
except KeyError:
pass
try:
fee_limit = config.get('_FEE_LIMIT')
except KeyError:
pass
if fee_price != None or fee_limit != None:
self.fee_oracle = OverrideGasOracle(price=fee_price, limit=fee_limit, conn=self.conn, id_generator=self.id_generator)
else:
self.fee_oracle = RPCGasOracle(self.conn, id_generator=self.id_generator)
error_parser = None
if config.get('RPC_DIALECT') == 'openethereum':
from chainlib.eth.dialect.openethereum import DialectErrorParser
self.error_parser = DialectErrorParser()
return self.conn
def get_gas_oracle(self):
return self.get_fee_oracle()