def stream(last_synced_block_file, lag, provider_uri, output, start_block, chain=Chain.BITCOIN,
period_seconds=10, batch_size=2, block_batch_size=10, max_workers=5, log_file=None, pid_file=None,
enrich=True):
"""Streams all data types to console or Google Pub/Sub."""
configure_logging(log_file)
configure_signals()
from bitcoinetl.streaming.streaming_utils import get_item_exporter
from bitcoinetl.streaming.btc_streamer_adapter import BtcStreamerAdapter
from blockchainetl.streaming.streamer import Streamer
streamer_adapter = BtcStreamerAdapter(
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)),
item_exporter=get_item_exporter(output),
chain=chain,
batch_size=batch_size,
enable_enrich=enrich,
max_workers=max_workers
)
streamer = Streamer(
blockchain_streamer_adapter=streamer_adapter,
last_synced_block_file=last_synced_block_file,
lag=lag,
start_block=start_block,
period_seconds=period_seconds,
block_batch_size=block_batch_size,
pid_file=pid_file,
)
streamer.stream()
def get_block_range_for_date(provider_uri, date, output):
"""Outputs start and end blocks for given date."""
bitcoin_rpc = BitcoinRpc(provider_uri)
btc_service = BtcBlockRangeService(bitcoin_rpc)
start_block, end_block = btc_service.get_block_range_for_date(date)
with smart_open(output, 'w') as output_file:
output_file.write('{},{}\n'.format(start_block, end_block))
def get_block_range_for_date(provider_uri, date, start_hour, end_hour, output):
"""Outputs start and end blocks for given date."""
if start_hour > end_hour:
raise ValueError('end_hour should be greater than or equal to start_hour')
bitcoin_rpc = BitcoinRpc(provider_uri)
btc_service = BtcBlockRangeService(bitcoin_rpc)
start_block, end_block = btc_service.get_block_range_for_date(date, start_hour, end_hour)
with smart_open(output, 'w') as output_file:
output_file.write('{},{}\n'.format(start_block, end_block))
def enrich_transactions(batch_size, provider_uri, max_workers,
transactions_input, transactions_output, chain):
"""Enrich transactions."""
with smart_open(transactions_input, 'r') as transactions_input_file:
job = EnrichTransactionsJob(
transactions_iterable=(json.loads(transaction)
for transaction in transactions_input_file),
batch_size=batch_size,
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)),
max_workers=max_workers,
item_exporter=blocks_and_transactions_item_exporter(
None, transactions_output),
chain=chain)
job.run()
def get_bitcoin_rpc(provider_type, read_resource_lambda=None, chain='bitcoin'):
if provider_type == "mock":
if read_resource_lambda is None:
raise ValueError(
'read_resource_lambda must not be None for provider type {}'.
format(provider_type))
rpc = MockBitcoinRpc(read_resource_lambda)
elif provider_type == "online":
env_variable_name = "BITCOINETL_{}_PROVIDER_URI".format(chain.upper())
provider_uri = os.environ.get(env_variable_name)
if provider_uri is None or len(provider_uri) == 0:
raise ValueError('{} is required environment variable'.format(
env_variable_name))
rpc = BitcoinRpc(provider_uri)
return rpc
def stream(last_synced_block_file, lag, provider_uri, output, start_block, chain=Chain.BITCOIN,
period_seconds=10, batch_size=2, block_batch_size=10, max_workers=5):
"""Streams all data types to console or Google Pub/Sub."""
from bitcoinetl.streaming.streaming_utils import get_item_exporter
from bitcoinetl.streaming.stream import stream as do_stream
do_stream(
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)),
last_synced_block_file=last_synced_block_file,
lag=lag,
item_exporter=get_item_exporter(output),
start_block=start_block,
chain=chain,
period_seconds=period_seconds,
batch_size=batch_size,
block_batch_size=block_batch_size,
max_workers=max_workers
)
def export_blocks_and_transactions(start_block, end_block, batch_size,
provider_uri, max_workers, blocks_output,
transactions_output, chain):
"""Export blocks and transactions."""
if blocks_output is None and transactions_output is None:
raise ValueError(
'Either --blocks-output or --transactions-output options must be provided'
)
job = ExportBlocksJob(
start_block=start_block,
end_block=end_block,
batch_size=batch_size,
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)),
max_workers=max_workers,
item_exporter=blocks_and_transactions_item_exporter(
blocks_output, transactions_output),
chain=chain,
export_blocks=blocks_output is not None,
export_transactions=transactions_output is not None)
job.run()
def get_partitions(start, end, partition_batch_size, provider_uri):
"""Yield partitions based on input data type."""
if is_date_range(start, end):
start_date = datetime.strptime(start, '%Y-%m-%d').date()
end_date = datetime.strptime(end, '%Y-%m-%d').date()
day = timedelta(days=1)
btc_service = BtcBlockRangeService(
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)))
while start_date <= end_date:
batch_start_block, batch_end_block = btc_service.get_block_range_for_date(
start_date)
partition_dir = '/date={start_date!s}/'.format(
start_date=start_date)
yield batch_start_block, batch_end_block, partition_dir, start_date
start_date += day
elif is_block_range(start, end):
start_block = int(start)
end_block = int(end)
for batch_start_block in range(start_block, end_block + 1,
partition_batch_size):
batch_end_block = batch_start_block + partition_batch_size - 1
if batch_end_block > end_block:
batch_end_block = end_block
padded_batch_start_block = str(batch_start_block).zfill(8)
padded_batch_end_block = str(batch_end_block).zfill(8)
partition_dir = '/start_block={padded_batch_start_block}/end_block={padded_batch_end_block}'.format(
padded_batch_start_block=padded_batch_start_block,
padded_batch_end_block=padded_batch_end_block,
)
yield batch_start_block, batch_end_block, partition_dir
else:
raise ValueError(
'start and end must be either block numbers or ISO dates')
def export_all(chain, partitions, output_dir, provider_uri, max_workers,
batch_size, enrich):
for batch_start_block, batch_end_block, partition_dir, *args in partitions:
# # # start # # #
start_time = time()
padded_batch_start_block = str(batch_start_block).zfill(8)
padded_batch_end_block = str(batch_end_block).zfill(8)
block_range = '{padded_batch_start_block}-{padded_batch_end_block}'.format(
padded_batch_start_block=padded_batch_start_block,
padded_batch_end_block=padded_batch_end_block,
)
file_name_suffix = '{padded_batch_start_block}_{padded_batch_end_block}'.format(
padded_batch_start_block=padded_batch_start_block,
padded_batch_end_block=padded_batch_end_block,
)
# # # blocks_and_transactions # # #
blocks_output_dir = '{output_dir}/blocks{partition_dir}'.format(
output_dir=output_dir,
partition_dir=partition_dir,
)
os.makedirs(os.path.dirname(blocks_output_dir), exist_ok=True)
transactions_output_dir = '{output_dir}/transactions{partition_dir}'.format(
output_dir=output_dir,
partition_dir=partition_dir,
)
os.makedirs(os.path.dirname(transactions_output_dir), exist_ok=True)
blocks_file = '{blocks_output_dir}/blocks_{file_name_suffix}.json'.format(
blocks_output_dir=blocks_output_dir,
file_name_suffix=file_name_suffix,
)
transactions_file = '{transactions_output_dir}/transactions_{file_name_suffix}.json'.format(
transactions_output_dir=transactions_output_dir,
file_name_suffix=file_name_suffix,
)
enriched_transactions_file = '{transactions_output_dir}/enriched_transactions_{file_name_suffix}.json'.format(
transactions_output_dir=transactions_output_dir,
file_name_suffix=file_name_suffix,
)
logger.info('Exporting blocks {block_range} to {blocks_file}'.format(
block_range=block_range,
blocks_file=blocks_file,
))
logger.info(
'Exporting transactions from blocks {block_range} to {transactions_file}'
.format(
block_range=block_range,
transactions_file=transactions_file,
))
job = ExportBlocksJob(
chain=chain,
start_block=batch_start_block,
end_block=batch_end_block,
batch_size=batch_size,
bitcoin_rpc=ThreadLocalProxy(lambda: BitcoinRpc(provider_uri)),
max_workers=max_workers,
item_exporter=blocks_and_transactions_item_exporter(
blocks_file, transactions_file),
export_blocks=blocks_file is not None,
export_transactions=transactions_file is not None)
job.run()
if enrich == True:
with smart_open(transactions_file, 'r') as transactions_file:
job = EnrichTransactionsJob(
transactions_iterable=(
json.loads(transaction)
for transaction in transactions_file),
batch_size=batch_size,
bitcoin_rpc=ThreadLocalProxy(
lambda: BitcoinRpc(provider_uri)),
max_workers=max_workers,
item_exporter=blocks_and_transactions_item_exporter(
None, enriched_transactions_file),
chain=chain)
job.run()
if args is not None and len(args) > 0:
date = args[0]
logger.info('Filtering blocks {blocks_file} by date {date}'.format(
blocks_file=blocks_file,
date=date,
))
def filter_by_date(item, field):
return datetime.datetime.fromtimestamp(item[field]).astimezone(datetime.timezone.utc) \
.strftime('%Y-%m-%d') == date.strftime('%Y-%m-%d')
filtered_blocks_file = blocks_file + '.filtered'
filter_items(blocks_file, filtered_blocks_file,
lambda item: filter_by_date(item, 'timestamp'))
shutil.move(filtered_blocks_file, blocks_file)
logger.info(
'Filtering transactions {transactions_file} by date {date}'.
format(
transactions_file=transactions_file,
date=date,
))
filtered_transactions_file = transactions_file + '.filtered'
filter_items(transactions_file, filtered_transactions_file,
lambda item: filter_by_date(item, 'block_timestamp'))
shutil.move(filtered_transactions_file, transactions_file)
# # # finish # # #
end_time = time()
time_diff = round(end_time - start_time, 5)
logger.info(
'Exporting blocks {block_range} took {time_diff} seconds'.format(
block_range=block_range,
time_diff=time_diff,
))
