cic-stack/apps/cic-eth/cic_eth/cli/rpc.py
2021-09-17 06:54:58 +00:00

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# standard imports
import logging
# external imports
from chainlib.connection import (
RPCConnection,
ConnType,
)
from chainlib.eth.connection import (
EthUnixSignerConnection,
EthHTTPSignerConnection,
)
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 self.get_by_label('default')
def get_by_label(self, label):
return RPCConnection.connect(self.chain_spec, label)
@staticmethod
def from_config(config, use_signer=False, default_label='default', signer_label='signer'):
chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
RPCConnection.register_location(config.get('RPC_PROVIDER'), chain_spec, default_label)
if use_signer:
RPCConnection.register_constructor(ConnType.UNIX, EthUnixSignerConnection, signer_label)
RPCConnection.register_constructor(ConnType.HTTP, EthHTTPSignerConnection, signer_label)
RPCConnection.register_constructor(ConnType.HTTP_SSL, EthHTTPSignerConnection, signer_label)
RPCConnection.register_location(config.get('SIGNER_PROVIDER'), chain_spec, signer_label)
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)
# TOOD: re-implement file backend option from omittec code:
#broker = config.get('CELERY_BROKER_URL')
#if broker[:4] == 'file':
# bq = tempfile.mkdtemp()
# bp = tempfile.mkdtemp()
# conf_update = {
# 'broker_url': broker,
# 'broker_transport_options': {
# 'data_folder_in': bq,
# 'data_folder_out': bq,
# 'data_folder_processed': bp,
# },
# }
# if config.true('CELERY_DEBUG'):
# conf_update['result_extended'] = True
# current_app.conf.update(conf_update)
# logg.warning('celery broker dirs queue i/o {} processed {}, will NOT be deleted on shutdown'.format(bq, bp))
#else:
# conf_update = {
# 'broker_url': broker,
# }
# if config.true('CELERY_DEBUG'):
# conf_update['result_extended'] = True
# current_app.conf.update(conf_update)
#
#result = config.get('CELERY_RESULT_URL')
#if result[:4] == 'file':
# rq = tempfile.mkdtemp()
# current_app.conf.update({
# 'result_backend': 'file://{}'.format(rq),
# })
# logg.warning('celery backend store dir {} created, will NOT be deleted on shutdown'.format(rq))
#else:
# current_app.conf.update({
# 'result_backend': result,
# })
#