Bitcoin RPC connection

I am trying to insert bitcoin transactions into MongoDB using python3. Below is my code :

import pymongo
import sys
import json
import time
from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException

rpc_connection = AuthServiceProxy("http://xxx:xxx@ipaddress:port")

def getTransaction():
    addresses = []
    txa = []
    commands = [ [ "getblockhash", height] for height in range(400000,550000) ]
    #print(commands)

    block_hashes = rpc_connection.batch_(commands)
    blocks = rpc_connection.batch_([ [ "getblock", h ] for h in block_hashes ])
    print(blocks)
    for txpre in blocks:
        #print(txpre)
        for txs in txpre["tx"]:
            txa.append(txs)
    trans = conTransaction(txa)
    return trans

I am getting following error :

Traceback (most recent call last):
  File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "Test06.py", line 252, in getBTCTransaction
    block_hashes = rpc_connection.batch_(commands)
  File "/home/administrator/.local/lib/python3.6/site-packages/bitcoinrpc/authproxy.py", line 165, in batch_
    'Content-type': 'application/json'})
  File "/usr/lib/python3.6/http/client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1065, in _send_output
    self.send(chunk)
  File "/usr/lib/python3.6/http/client.py", line 986, in send
    self.sock.sendall(data)
BrokenPipeError: [Errno 32] Broken pipe

I checked bitcoind rpc connection,its connected.
block_hashes = rpc_connection.batch_(commands) this code line is giving error. Can somebody tell me what's wrong? Working on a remote server.

Varsh

Posted 2018-12-18T11:04:48.050

Reputation: 11

did you obfuscate "http://xxx:xxx@ipaddress:port" for this question or do you have it like this in your code? in that case it would be clear why can't connect to it. Did you also check bitcoind to have the http-rpc interface open?

– Rene Pickhardt – 2018-12-18T11:14:28.603

No, I have my IP address, port, user password in my code. I obfuscate it just for this question. Can you pleasse tell me how to check bitcoind to have the http-rpc interface open? I am new to bitcoind – Varsh – 2018-12-18T11:19:47.067

try wget http://xxx:xxx@ipaddress:port or curl you could even check with a networking tool if you really have a port open. also check your bitcoin.conf (c.f.: https://en.bitcoin.it/wiki/Running_Bitcoin you need to uncomment the lines for the RPC)

– Rene Pickhardt – 2018-12-18T11:21:11.860

I tried this "wget http://xxx:xxx@ipaddress:port". Its giving response 200 OK.

– Varsh – 2018-12-18T11:24:47.057

Given list rpc lines are uncommented and changed. Please check. server=1
rpcuser=xxx rpcpassword=xxx
rpcclienttimeout=60
rpcallowip=remote_ipaddress_on_which_working/port
rpcport=port rpcconnect=remote_ipaddress_on_which_working – Varsh – 2018-12-18T12:44:18.013

if you get 200 OK via wget we can know that your bitcoin node really is running as expected. so the problem seems to be from your client lib. from the error log it seems that you are making the http request while doing multithreading. I don't see something like this in your code example but could it be that you are closing the TCP socket before bitcoin is able to give you an answer? have you tried doing a JSON http request yourself in pythong without this client lib? also I am wondering that the lib is located in /home/adminstrator/... did you install it with sudo? – Rene Pickhardt – 2018-12-18T14:10:40.193

After doing changes in bitcoin.conf now I am getting socket.timeout: timed out error – Varsh – 2018-12-19T05:48:00.820

Bitcoin RPC connection

Answers