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#!/usr/bin/env python3
# Copyright (c) 2014-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
import array
import binascii
import asyncio, zmq, zmq.asyncio
import struct
port = 28332
zmqContext = zmq.asyncio.Context()
async def recv_and_process():
zmqSubSocket = zmqContext.socket(zmq.SUB)
zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "hashblock")
zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "hashtx")
zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "rawblock")
zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "rawtx")
zmqSubSocket.connect("tcp://127.0.0.1:%i" % port)
poller = zmq.asyncio.Poller()
poller.register(zmqSubSocket, zmq.POLLIN)
while True:
s = await poller.poll()
msg = await s[0][0].recv_multipart()
topic = msg[0]
body = msg[1]
sequence = "Unknown";
if len(msg[-1]) == 4:
msgSequence = struct.unpack('<I', msg[-1])[-1]
sequence = str(msgSequence)
if topic == b"hashblock":
print('- HASH BLOCK ('+sequence+') -')
print(binascii.hexlify(body))
elif topic == b"hashtx":
print('- HASH TX ('+sequence+') -')
print(binascii.hexlify(body))
elif topic == b"rawblock":
print('- RAW BLOCK HEADER ('+sequence+') -')
print(binascii.hexlify(body[:80]))
elif topic == b"rawtx":
print('- RAW TX ('+sequence+') -')
print(binascii.hexlify(body))
try:
loop = zmq.asyncio.ZMQEventLoop()
asyncio.set_event_loop(loop)
loop.run_until_complete(setup())
except KeyboardInterrupt:
zmqContext.destroy()
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