• About
  • FAQ
  • Earn Bitcoin while Surfing the net
  • Buy & Sell Crypto on Paxful
Newsletter
Approx Foundation
  • Home
    • Home – Layout 1
  • Bitcoin
  • Ethereum
  • Regulation
  • Market
  • Blockchain
  • Business
  • Guide
  • Contact Us
No Result
View All Result
  • Home
    • Home – Layout 1
  • Bitcoin
  • Ethereum
  • Regulation
  • Market
  • Blockchain
  • Business
  • Guide
  • Contact Us
No Result
View All Result
Approx Foundation
No Result
View All Result
Home Bitcoin

json rpc – How to properly use the rpc command `listunspent` with `bitcore-lib` to create a transaction and get the transaction hash?

Moussa by Moussa
May 31, 2026
in Bitcoin
0
How do Bitcoin mining pools typically handle payout frequency versus thresholds?
189
SHARES
1.5k
VIEWS
Share on FacebookShare on Twitter


I am trying to use the rpc command listunspent to get all the UTXOs relevant to an address, and then I am trying to pass it to a transaction, using bitcore-lib.
Below is my code:

const Client = require('bitcoin-core');
const bitcore = require('bitcore-lib');
const client = new Client({ 
  network: 'regtest', 
  username: 'bitcoinuser', 
  password: 'bitcoinpass', 
  port: 18443 
});

var tx = new bitcore.Transaction();

var sourceAddress = ["mwkT2k1o6k4dF7ZZQ2VBbw7VedBkQA2CBK"];
var minconf = 6;
var maxconf = 999999;
var targetAddress = "2Mw3iwZdVXjeb7BN5hWqegFs8VdfZo5Rmdo";
var privateKey = "cQqVxdtPz95monJe8QJUE4h5JVtSSAjTQ1SU6z8PL9pmFj5V7ieA";

var txns = [];
client.listUnspent(minconf, maxconf, sourceAddress)
    .then(function(help){
    txns = help.slice();
    return txns;
  }).then(function(txns){
    return tx.from(txns).to(targetAddress, 15000).sign(privateKey);
  }).then(function(result){
    console.log(result);
  });

The result is similar to the transaction object.

What I want is to receive the transaction hash, which I can then broadcast.

Note: I am trying to run my core in regtest mode, I do not want to use livenet or testnet. I have also disclosed the public and private keys, as they do not hold any real value.

The first few lines of the output looks like this:

Transaction {
  inputs:
   [ PublicKeyInput {
       witnesses: [],
       output:
        Output {
          _satoshisBN:
           BN { negative: 0, words: [ 16972032, 37 ], length: 2, red: null 
},
          _satoshis: 2500000000,
          _scriptBuffer:
           ,
          _script:
           Script {
             chunks:
              [ { buf:
                   ,
                  len: 33,
                  opcodenum: 33 },
                { opcodenum: 172 } ],
             _isOutput: true } },
       prevTxId:
        ,
       outputIndex: 0,
       sequenceNumber: 4294967295,
       _script: Script { chunks: [], _isInput: true },
       _scriptBuffer:  },
     PublicKeyInput {
       witnesses: [],
       output:
        Output {
          _satoshisBN:



Source link

Related articles

Anthropic Loses Pentagon Fight Ahead of Anticipated $2 Trillion IPO

Anthropic Loses Pentagon Fight Ahead of Anticipated $2 Trillion IPO

September 26, 2026
SEC Market Structure Proposal Draws Tokenized Stock Attention

Uk Banks Complete First Live Tokenized Sterling Deposit Payments

September 26, 2026
Share76Tweet47

Related Posts

Anthropic Loses Pentagon Fight Ahead of Anticipated $2 Trillion IPO

Anthropic Loses Pentagon Fight Ahead of Anticipated $2 Trillion IPO

by Moussa
September 26, 2026
0

Key TakeawaysA 2-1 appeals ruling allows the Pentagon to exclude Anthropic from defense work.Anthropic previously won a Pentagon agreement with...

SEC Market Structure Proposal Draws Tokenized Stock Attention

Uk Banks Complete First Live Tokenized Sterling Deposit Payments

by Moussa
September 26, 2026
0

Trusted Editorial content, reviewed by leading industry experts and seasoned editors. Ad Disclosure Major UK banks have completed the first...

Bitget Confirms $351.6M Hot Wallet Breach And Pauses Withdrawals

CleanSpark Closes $2.276B Debt Financing As Miner Builds For Its Next Expansion

by Moussa
September 26, 2026
0

TL;DR CleanSpark has completed the closing of $2.276 billion in senior secured notes. The Bitcoin miner says proceeds will support...

$93K BTC Is The Key Price Level For The Bull Market

$93K BTC Is The Key Price Level For The Bull Market

by Moussa
September 26, 2026
0

Is the Bitcoin bear market officially over? Katie Stockton, founder of Fairlead Strategies, breaks down the technical signals behind Bitcoin’s...

Bitcoin Price Still 33% Below Its Peak High as Bulls Plot a Comeback

Bitcoin Price Still 33% Below Its Peak High as Bulls Plot a Comeback

by Moussa
September 26, 2026
0

Key TakeawaysBitcoin’s price remains 33.2% below its October 2025 all-time high of $126,080.Bitcoin’s daily moving averages retain a strong bullish...

Load More

youssufi.com

sephina.com

[vc_row full_width="stretch_row" parallax="content-moving" vc_row_background="" background_repeat="no-repeat" background_position="center center" footer_scheme="dark" css=".vc_custom_1517813231908{padding-top: 60px !important;padding-bottom: 30px !important;background-color: #191818 !important;background-position: center;background-repeat: no-repeat !important;background-size: cover !important;}" footer_widget_title_color="#fcbf46" footer_button_bg="#fcb11e"][vc_column width="1/4"]

We bring you the latest in Crypto News

[/vc_column][vc_column width="1/4"][vc_wp_categories]
[/vc_column][vc_column width="1/4"][vc_wp_tagcloud taxonomy="post_tag"][/vc_column][vc_column width="1/4"]

Newsletter

[vc_raw_html]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[/vc_raw_html][/vc_column][/vc_row]
No Result
View All Result
  • Contact Us
  • Homepages
  • Business
  • Guide

© 2024 APPROX FOUNDATION - The Crypto Currency News