async def f():
try:
peers = await network.get_peers()
peers = filter_protocol(peers, 's')
results = await network.send_multiple_requests(peers, 'blockchain.headers.subscribe', [])
for server, header in sorted(results.items(), key=lambda x: x[1].get('height')):
height = header.get('height')
blockhash = hash_raw_header(header.get('hex'))
print(server, height, blockhash)
finally:
stopping_fut.set_result(1)
async def f():
try:
peers = await network.get_peers()
peers = filter_protocol(peers)
results = await network.send_multiple_requests(
peers, 'blockchain.estimatefee', [2])
print(json.dumps(results, indent=4))
feerate_estimates = filter(lambda x: isinstance(x, Number),
results.values())
print(f"median feerate: {median(feerate_estimates)}")
finally:
stopping_fut.set_result(1)
async def f():
try:
peers = await network.get_peers()
peers = filter_protocol(peers, 's')
results = await network.send_multiple_requests(
peers, 'blockchain.transaction.get', [txid])
r1, r2 = [], []
for k, v in results.items():
(r1 if not isinstance(v, Exception) else r2).append(k)
print(f"Received {len(results)} answers")
try:
propagation = len(r1) * 100. / (len(r1) + len(r2))
except ZeroDivisionError:
propagation = 0
print(f"Propagation rate: {propagation:.1f} percent")
finally:
stopping_fut.set_result(1)