def test_block_ranges(start, stop, expected):
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
block_ranges(start, stop)
else:
actual = tuple(block_ranges(start, stop))
assert len(actual) == len(expected)
for actual, expected in zip(actual, expected):
assert actual == expected
def test_block_ranges(start, stop, expected):
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
block_ranges(start, stop)
else:
actual = tuple(block_ranges(start, stop))
assert len(actual) == len(expected)
for actual, expected in zip(actual, expected):
assert actual == expected
def get_logs_asap(address, topics, from_block, to_block):
logs = []
ranges = list(block_ranges(from_block, to_block, BATCH_SIZE))
logger.info('fetching %d batches', len(ranges))
batches = Parallel(8, "threading", verbose=10)(
delayed(web3.eth.getLogs)({"address": address, "topics": topics, "fromBlock": start, "toBlock": end})
for start, end in ranges
)
for batch in batches:
logs.extend(batch)
return logs
def get_logs_asap(address, topics, from_block=None, to_block=None, verbose=0):
logs = []
if from_block is None:
from_block = contract_creation_block(address)
if to_block is None:
to_block = chain.height
ranges = list(block_ranges(from_block, to_block, BATCH_SIZE[chain.id]))
if verbose > 0:
logger.info('fetching %d batches', len(ranges))
batches = Parallel(8, "threading", verbose=verbose)(
delayed(web3.eth.get_logs)({
"address": address,
"topics": topics,
"fromBlock": start,
"toBlock": end
}) for start, end in ranges)
for batch in batches:
logs.extend(batch)
return logs
