def _start(self):
self.blocks_output_file = get_file_handle(self.blocks_output,
binary=True)
self.transactions_output_file = get_file_handle(
self.transactions_output, binary=True)
self.blocks_exporter = CsvItemExporter(self.blocks_output_file)
self.transactions_exporter = CsvItemExporter(
self.transactions_output_file)
def _start(self):
super()._start()
self.blocks_output_file = get_file_handle(self.blocks_output, binary=True)
self.blocks_exporter = CsvItemExporter(
self.blocks_output_file, fields_to_export=self.block_fields_to_export)
self.transactions_output_file = get_file_handle(self.transactions_output, binary=True)
self.transactions_exporter = CsvItemExporter(
self.transactions_output_file, fields_to_export=self.transaction_fields_to_export)
def _start(self):
# Using bounded executor prevents unlimited queue growth
# and allows monitoring in-progress futures and failing fast in case of errors.
self.executor = FailSafeExecutor(BoundedExecutor(1, self.max_workers))
self.blocks_output_file = get_file_handle(self.blocks_output,
binary=True)
self.blocks_exporter = CsvItemExporter(
self.blocks_output_file,
fields_to_export=self.block_fields_to_export)
self.transactions_output_file = get_file_handle(
self.transactions_output, binary=True)
self.transactions_exporter = CsvItemExporter(
self.transactions_output_file,
fields_to_export=self.transaction_fields_to_export)
def open(self):
for item_type, filename in self.filename_mapping.items():
self.file_mapping[item_type] = get_file_handle(filename,
binary=True)
self.exporter_mapping[item_type] = CsvItemExporter(
self.file_mapping[item_type],
fields_to_export=self.field_mapping[item_type])
def _start(self):
super()._start()
self.output_file = get_file_handle(self.output,
binary=True,
create_parent_dirs=True)
self.exporter = CsvItemExporter(self.output_file,
fields_to_export=self.fields_to_export)
def open(self):
for item_type, filename in self.filename_mapping.items():
file = get_file_handle(filename, binary=True)
fields = self.field_mapping[item_type]
self.file_mapping[item_type] = file
if str(filename).endswith('.json'):
item_exporter = JsonLinesItemExporter(file, fields_to_export=fields)
else:
item_exporter = CsvItemExporter(file, fields_to_export=fields)
self.exporter_mapping[item_type] = item_exporter
self.counter_mapping[item_type] = AtomicCounter()
def _start(self):
self.output_file = get_file_handle(self.output, binary=True)
self.exporter = CsvItemExporter(self.output_file)
description='Exports ERC20 transfers using eth_newFilter and eth_getFilterLogs JSON RPC APIs.')
parser.add_argument('--start-block', default=0, type=int, help='Start block')
parser.add_argument('--end-block', required=True, type=int, help='End block')
parser.add_argument('--output', default=None, type=str, help='The output file. If not specified stdout is used.')
parser.add_argument('--ipc-path', required=True, type=str, help='The full path to the ipc socket file.')
parser.add_argument('--ipc-timeout', default=300, type=int, help='The timeout in seconds for ipc calls.')
parser.add_argument('--batch-size', default=100, type=int, help='The number of blocks to filter at a time.')
args = parser.parse_args()
with smart_open(args.output, binary=True) as output_file:
transaction_receipt_log_mapper = EthTransactionReceiptLogMapper()
erc20_transfer_mapper = EthErc20TransferMapper()
erc20_processor = EthErc20Processor()
exporter = CsvItemExporter(output_file)
web3 = Web3(IPCProvider(args.ipc_path, timeout=args.ipc_timeout))
for batch_start_block in range(args.start_block, args.end_block + 1, args.batch_size):
batch_end_block = min(batch_start_block + args.batch_size - 1, args.end_block)
event_filter = web3.eth.filter({
"fromBlock": batch_start_block,
"toBlock": batch_end_block,
"topics": [TRANSFER_EVENT_TOPIC]
})
events = event_filter.get_all_entries()
for event in events:
help='Whether or not to extract transactions.')
parser.add_argument(
'--transactions-output',
default=None,
type=str,
help='The output file for transactions. If not specified stdout is used.')
args = parser.parse_args()
with smart_open(args.input, 'r') as input_file, \
smart_open(args.blocks_output, binary=True) if args.extract_blocks else None as blocks_output_file , \
smart_open(args.transactions_output, binary=True) if args.extract_transactions else None as tx_output_file:
block_mapper = EthBlockMapper()
tx_mapper = EthTransactionMapper()
blocks_exporter = CsvItemExporter(
blocks_output_file) if blocks_output_file is not None else None
tx_exporter = CsvItemExporter(
tx_output_file) if tx_output_file is not None else None
for line in input_file:
json_line = json.loads(line)
result = json_line.get('result', None)
if result is None:
continue
block = block_mapper.json_dict_to_block(result)
if blocks_exporter is not None:
blocks_exporter.export_item(block_mapper.block_to_dict(block))
if block.transactions is not None and tx_exporter is not None:
for transaction in block.transactions:
tx_exporter.export_item(
parser = argparse.ArgumentParser(
description='Extract blocks and transactions from eth_getBlockByNumber JSON RPC output')
parser.add_argument('--input', default=None, type=str, help='The input file. If not specified stdin is used.')
parser.add_argument('--blocks-output', default=None, type=str,
help='The output file for blocks. If not specified stdout is used.')
parser.add_argument('--transactions-output', default=None, type=str,
help='The output file for transactions. If not specified stdout is used.')
args = parser.parse_args()
with smart_open(args.input, 'r') as input_file, \
smart_open(args.blocks_output, binary=True) as blocks_output_file, \
smart_open(args.transactions_output, binary=True) as tx_output_file:
block_mapper = EthBlockMapper()
tx_mapper = EthTransactionMapper()
blocks_exporter = CsvItemExporter(blocks_output_file)
tx_exporter = CsvItemExporter(tx_output_file)
for line in input_file:
json_line = json.loads(line)
result = json_line.get('result', None)
if result is None:
continue
block = block_mapper.json_dict_to_block(result)
blocks_exporter.export_item(block_mapper.block_to_dict(block))
if block.transactions is not None:
for transaction in block.transactions:
tx_exporter.export_item(tx_mapper.transaction_to_dict(transaction))