bitcoin/contrib/zmq/zmq_sub.py

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#!/usr/bin/env python2
# 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 zmq
import struct
port = 28332
zmqContext = zmq.Context()
zmqSubSocket = zmqContext.socket(zmq.SUB)
zmqSubSocket.setsockopt(zmq.SUBSCRIBE, "hashblock")
zmqSubSocket.setsockopt(zmq.SUBSCRIBE, "hashtx")
zmqSubSocket.setsockopt(zmq.SUBSCRIBE, "rawblock")
zmqSubSocket.setsockopt(zmq.SUBSCRIBE, "rawtx")
zmqSubSocket.connect("tcp://127.0.0.1:%i" % port)
try:
while True:
msg = zmqSubSocket.recv_multipart()
topic = str(msg[0])
body = msg[1]
sequence = "Unknown";
if len(msg[-1]) == 4:
msgSequence = struct.unpack('<I', msg[-1])[-1]
sequence = str(msgSequence)
if topic == "hashblock":
print '- HASH BLOCK ('+sequence+') -'
print binascii.hexlify(body)
elif topic == "hashtx":
print '- HASH TX ('+sequence+') -'
print binascii.hexlify(body)
elif topic == "rawblock":
print '- RAW BLOCK HEADER ('+sequence+') -'
print binascii.hexlify(body[:80])
elif topic == "rawtx":
print '- RAW TX ('+sequence+') -'
print binascii.hexlify(body)
except KeyboardInterrupt:
zmqContext.destroy()