def get_blocks(self, start_block_hashes, max_count):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetBlocks(
rpc_pb2.GetBlocksRequest(start_block_hashes=start_block_hashes, max_count=max_count))
channel.close()
return response.blocks
def contract_query(self, contract_address, key, value):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcContractQuery(
rpc_pb2.ContractQueryRequest(contract_addr=contract_address, key=key, value=value))
channel.close()
return {"key": response.key, "value": response.value}
def get_block_chain_info(self):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetBlockchainInfo(rpc_pb2.GetBlockchainInfoRequest())
channel.close()
return {"tailBlockHash": binascii.hexlify(response.tail_block_hash), "blockHeight": response.block_height,
"producers": response.producers}
def get_version(self, proto_version):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetVersion(rpc_pb2.GetVersionRequest(proto_version=proto_version))
message = "{}'protocolVersion':{},'serverVersion':{}{}".format("{", response.proto_version,
response.server_version, "}")
channel.close()
return message
def send_transaction(self, transaction):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
try:
response = stub.RpcSendTransaction(rpc_pb2.SendTransactionRequest(transaction=transaction))
channel.close()
return {"code": 0, "message": response.generated_contract_address}
except grpc.RpcError as e:
return {"code": -1, "message": e.details()}
def get_gas_price(self):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGasPrice(rpc_pb2.GasPriceRequest())
channel.close()
return response.gas_price
def estimate_gas(self, transaction):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcEstimateGas(rpc_pb2.EstimateGasRequest(transaction=transaction))
channel.close()
return response.gas_count
def get_block_by_height(self, height):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetBlockByHeight(rpc_pb2.GetBlockByHeightRequest(height=height))
channel.close()
return response.block
def get_block_by_hash(self, byte_hash):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetBlockByHash(rpc_pb2.GetBlockByHashRequest(hash=byte_hash))
channel.close()
return response.block
def get_utxos(self, address):
channel = grpc.insecure_channel('{}:{}'.format(self._host, self._port))
stub = rpc_pb2_grpc.RpcServiceStub(channel)
response = stub.RpcGetUTXO(rpc_pb2.GetUTXORequest(address=address))
channel.close()
return response.utxos
def get_rpc_client(self, channel):
stub = rpc_pb2_grpc.RpcServiceStub(channel)
return stub