cic-internal-integration/apps/cic-cache/cic_cache/cli/rpc.py

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# standard imports
import logging
# external imports
from chainlib.connection import (
RPCConnection,
ConnType,
)
from chainlib.eth.connection import EthUnixSignerConnection
from chainlib.chain import ChainSpec
logg = logging.getLogger(__name__)
class RPC:
def __init__(self, chain_spec, rpc_provider, signer_provider=None):
self.chain_spec = chain_spec
self.rpc_provider = rpc_provider
self.signer_provider = signer_provider
def get_default(self):
return RPCConnection.connect(self.chain_spec, 'default')
@staticmethod
def from_config(config):
chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
RPCConnection.register_location(config.get('RPC_PROVIDER'), chain_spec, 'default')
if config.get('SIGNER_PROVIDER'):
RPCConnection.register_constructor(ConnType.UNIX, EthUnixSignerConnection, tag='signer')
RPCConnection.register_location(config.get('SIGNER_PROVIDER'), chain_spec, 'signer')
rpc = RPC(chain_spec, config.get('RPC_PROVIDER'), signer_provider=config.get('SIGNER_PROVIDER'))
logg.info('set up rpc: {}'.format(rpc))
return rpc
def __str__(self):
return 'RPC factory, chain {}, rpc {}, signer {}'.format(self.chain_spec, self.rpc_provider, self.signer_provider)