mirror of
https://github.com/ChristopherA/Learning-Bitcoin-from-the-Command-Line.git
synced 2025-10-31 10:27:29 +00:00
70 lines
2.9 KiB
Python
70 lines
2.9 KiB
Python
from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
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from pprint import pprint
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import logging
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#logging.basicConfig()
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#logging.getLogger("BitcoinRPC").setLevel(logging.DEBUG)
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# rpc_user and rpc_password are set in the bitcoin.conf file
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rpc_user = "StandUp"
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rpc_pass = "6305f1b2dbb3bc5a16cd0f4aac7e1eba"
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rpc_host = "127.0.0.1"
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rpc_client = AuthServiceProxy(f"http://{rpc_user}:{rpc_pass}@{rpc_host}:18332", timeout=120)
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print("Creating a Transaction")
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## 0. Create New Addresses
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new_address = rpc_client.getnewaddress("Learning-Bitcoin-from-the-Command-Line")
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new_change_address = rpc_client.getrawchangeaddress()
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## 1. Select UTXO
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utxos = rpc_client.listunspent()
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selected_utxo = utxos[0] # we select the first utxo here
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utxo_address = selected_utxo['address']
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utxo_txid = selected_utxo['txid']
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utxo_vout = selected_utxo['vout']
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utxo_amt = float(selected_utxo['amount'])
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# here we are sending bitcoins to an address generated by us in our own wallet.
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recipient_address = new_address
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recipient_amt = utxo_amt / 2 # sending half coins to recipient
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miner_fee = 0.00000300 # choose appropriate fee based on your tx size
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change_address = new_change_address
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change_amt = float('%.8f'%((utxo_amt - recipient_amt) - miner_fee))
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print("---------------------------------------------------------------")
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print("Transaction Details:")
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print("-------------------")
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print("UTXO Address.......: ", utxo_address)
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print("UTXO Txid..........: ", utxo_txid)
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print("Vector ID of Output: ", utxo_vout)
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print("UTXO Amount........: ", utxo_amt)
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print("Tx Amount..........: ", recipient_amt)
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print("Recipient Address..: ", recipient_address)
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print("Change Address.....: ", change_address)
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print("Miner Fee..........: ", miner_fee)
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print("Change Amount......: ", change_amt)
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print("---------------------------------------------------------------\n")
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## 2. Create Raw Transaction
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txids_vouts = [{"txid": utxo_txid, "vout": utxo_vout}]
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addresses_amts = {f"{recipient_address}": recipient_amt, f"{change_address}": change_amt}
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unsigned_tx_hex = rpc_client.createrawtransaction(txids_vouts, addresses_amts)
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print("---------------------------------------------------------------")
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print("Unsigned Transaction Hex: ", unsigned_tx_hex)
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print("---------------------------------------------------------------\n")
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## 3. Sign Raw Transaction
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address_priv_key = [] # list of priv keys of each utxo
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address_priv_key.append(rpc_client.dumpprivkey(utxo_address))
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signed_tx = rpc_client.signrawtransactionwithkey(unsigned_tx_hex, address_priv_key)
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print("---------------------------------------------------------------")
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print("Signed Transaction: ")
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print("----------------------")
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pprint(signed_tx)
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print("---------------------------------------------------------------\n")
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## 4. Broadcast Transaction
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send_tx = rpc_client.sendrawtransaction(signed_tx['hex'])
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print("---------------------------------------------------------------")
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print("TXID of sent transaction: ", send_tx)
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