Can I get all the wallet addresses that bitcoinj has generated about bip39

[junderw]

Yes you can. Just derive sequential integers for the address index.

[junderw]

Please post your JS/TS code if you would like further assistance.

[suusofttruongnv]

Here is my code, please show me how to get all wallet addresses like bitcoinj:

const mnemonic = '...';
const seed = bip39.mnemonicToSeedSync(mnemonic);
const node = bip32.fromSeed(seed);
const bitcoinNetwork = bitcoin.networks.testnet
const hdMaster = bitcoin.bip32.fromSeed(seed, bitcoinNetwork)
const address = bitcoin.payments.p2pkh({ pubkey: node.publicKey, bitcoinNetwork }).address;

const keyPair = hdMaster.derivePath('m/0')
const privateKeyBuffer = Buffer.from(keyPair.privateKey);
const privateKey = privateKeyBuffer.toString('hex');

console.log(address + " " + privateKey);

Thanks for the help !!

[junderw]

I don't understand.
What is the difference between node and hdMaster...?
Why is privateKey based on m/0 while address is based on m paths?

Can you give me a sample mnemonic and the expected addresses + private keys? (multiple)

[suusofttruongnv]

You can give me your skype or email, I would like to chat with you. Thanks!!

[junderw]

My email is on all my commits, and my github profile.

But tbh, it is better to have these discussions out in the open.
Just make a new mnemonic, put it into your bitcoinj app, and post the addresses and keys that pop out.
If it's a brand new random mnemonic there's no reason why you can't share it openly.

[suusofttruongnv]

I am new to bitcoin so do not understand much about it, can you tell me how to get all the wallet address and private key like bitcoinj created?

[junderw]

You are saying "like bitcoinj created"

So I am assuming you have an existing app that is using bitcoinj, and you're trying to recreate that in nodejs with bitcoinjs?

In that case, put the following mnemonic into your bitcoinj app and tell me what address(es) it gives you.

pave cook hair interest sad gift mosquito service early volume deal solar

[suusofttruongnv]

This is my mnemonic :

vicious fork like burden broom couch giraffe foil lobster vehicle over park park

In bitcoinj, the test net, my wallet address is::

addr:mkZmHTqtAfqrhrL1kNHPHN7KtyXpLk2AwD hash160:3760af9bb1a306d8b0d29111a71e1714e848cdf7 (M, root)
addr:mzfoeKrivn9qwEYY3mXLYeC5t3XMv57e6M hash160:d216e998c60687222c08a793f838988836a52d8c (M/0H, account)
addr:moSQVNyX8axM174vmmUVwsTY8nosUH5eAY hash160:56e4cb0d4a82541d83b954d68a1bdfb935f9f7d8 (M/0H/0, external)
addr:mrz6cADNkQKTVR6RednxzXjixpQGtZMDox hash160:7dcb8da0eeaba02d796a686383c57e1ade6ea617 (M/0H/1, internal)
addr:mpC8aH8pcrNzy5hzBhTgdgZv12jbs6FBVa hash160:5f29cf5403cc642728a0c85594aaaeed0323bb5e (M/0H/0/0)
addr:mkycrQEFcVKPENg4TPCVyy5aYpYfAyacz6 hash160:3be3a15a2f47daab4b2c450149db30fbe13b89f2 (M/0H/0/1)
addr:muRTbfmUMt7XSZR143hTWZk6rC7SkvPKwY hash160:9887ba0980b4a55245f063ac85130122cf882718 (M/0H/0/2)
addr:mns93KwuVnrnLUrcdeC7o353dQ18hWSXF9 hash160:509a2b8c5277ba49768978a1527aa6954a8cc135 (M/0H/0/3)
addr:mtoZZtFHEJXVGwwKpm3uCuapaVPioDVrzB hash160:91bdbc2536395a220a2afa8035fc1a80bc0b801a (M/0H/0/4)
addr:muVAUZ1thodKehuFUk9gL1fn6x7QAetihc hash160:993b18e53391a8b2b803716aaa3028ddef530c71 (M/0H/0/5)
addr:n364APV7cd7789tuYgXk99d78ZcdGdVuBr hash160:ec9d443427fc9753b985fd4b3598f2adf690510a (M/0H/0/6)
addr:mjHQaE5migddtoynPB5aFhBELWNBWDJDjX hash160:29509dbb1166c8a5dc80c954c4dc0a6080d40384 (M/0H/0/7)
addr:mn92ykB6woJsxzXJdRMmrksmaJsZdUk9Ns hash160:48a3a3bd70e7b5f9774f80624a085179f34f5d02 (M/0H/0/8)
addr:mwAWVSLMm5gNB8uFwcJMBP99UrZ4FV8pgc hash160:aba427477bdcfc17cb8f7a8d52aa74aadeadd6cd (M/0H/0/9)
addr:mtneUknMcRUjJpZ9UiFMqNs4adM3P7aQ42 hash160:91916b40bf90152aa2b515ffe640c9abcd1412ac (M/0H/0/10)
addr:mv6fUfdis6d3BsMvqVBSfALFH4wSBLH8RC hash160:9ff1dd93926232f3d7141b67a5047afc30496eb6 (M/0H/0/11)
addr:n3NjerqHtdfJL4Y2x2vb51EwkkGkMS1M1D hash160:efc4e31bca8baf1032cdcbf30c333e4ccbe28930 (M/0H/0/12)
addr:mqCjhBLrmrhtSWRz6r7Dpr44q7ehgE2cVP hash160:6a3f406222e54a43043810cfc9e0e679e4a28acb (M/0H/0/13)
addr:mp7zYwwVYZyYZ6JQy2L75e5SzHbxx7Te9h hash160:5e6172e52a120deca537289323efce05c19f3b5e (M/0H/0/14)
addr:mnBfPASXzgV7nFe3FLfGU5op2D276SSEiV hash160:4922dc202a32037aa3f1722789c9317c66654213 (M/0H/0/15)
addr:mipfqGKCW3QbYxeFxPAPFVhc4Aip6hTBUr hash160:24421f7b5e81b9b07289d6c6e2dc2a85c69ab15e (M/0H/0/16)
addr:mv4XYD3dCtRe16qzbsYhiUDqGn9Ddmtrk7 hash160:9f8a681189ee7a7e0ba0ea0e82c43c27d064b718 (M/0H/0/17)
addr:n36hKeLTUAW31mKXSYUM67LatYXXXRkPj8 hash160:ecbc4922740590bb121a4d718d0399831a21aef6 (M/0H/0/18)
addr:n2ruHmRgd9Tp7FTKCehjtwtAJ9S91uZTd5 hash160:ea2073c915eb88edc96e5bd5c5e44defc9c34487 (M/0H/0/19)
addr:mzSKqsQNAdGm8TLUMq6uridkzLSFnquTcy hash160:cf8a4c4384249305afaafd69a83d5c206d63bb47 (M/0H/0/20)
addr:mik2LFXfKscBy4WrmrZcBZYUCDBJo67MBE hash160:236127cf8bf28fda358f665073918774ff606648 (M/0H/0/21)
addr:miwAvQDTxuyx4eHTsSVteQ3ZQDrPuebRs4 hash160:257ce69105b1ba6a0411ab9bbf9957b426167bc5 (M/0H/0/22)
addr:mydpXc5xqUUhCxBHKEj2TW9aS4wczWDvX7 hash160:c6beb15c8a458da7c703a33d047a92681082a82d (M/0H/0/23)
addr:mnQt7mkg8bMzJxufXQEMJ1RsgxYHcLnced hash160:4ba2e5d0231625db532685de1a4

Thanks for support !!

[suusofttruongnv]

Currently I have the private key of one wallet, hopefully from it we will get a way to get the private key of other wallets:

address : mpC8aH8pcrNzy5hzBhTgdgZv12jbs6FBVa
private key : 3d6982c7687c3892ebf32bd092cb2be47d115a39453c218a8e01fd882ec82549

[junderw]

getKeysFromMnemonic('vicious fork like burden broom couch giraffe foil lobster vehicle over park park')

const bip39 = require('bip39')
const bitcoinjs = require('bitcoinjs-lib')

const DEFAULT_OPTS = {
  keyCount: 25,
  startingKey: 0,
  isChange: false,
  network: bitcoinjs.networks.testnet,
}

function getKeysFromMnemonic(mnemonic, opts) {
  const {
    keyCount,
    startingKey,
    isChange,
    network,
  } = Object.assign({}, DEFAULT_OPTS, opts)

  const seed = bip39.mnemonicToSeedSync(mnemonic)
  const root = bitcoinjs.bip32.fromSeed(seed, network)
  const account = root.deriveHardened(0)
  // can also be derived with root.derivePath(`m/0'/0`)
  const external = account.derive(0)
  // can also be derived with root.derivePath(`m/0'/1`)
  const internal = account.derive(1)

  const keys = []
  function pushKey (key, path) {
    const payment = bitcoinjs.payments.p2pkh({
      pubkey: key.publicKey,
      network
    })
    keys.push({
      path,
      address: payment.address,
      hash160: payment.hash.toString('hex'),
      privateKey: key.toWIF(),
    })
  }

  pushKey(root, 'M, root')
  pushKey(account, 'M/0H, account')
  pushKey(external, 'M/0H/0, external')
  pushKey(internal, 'M/0H/1, internal')

  const inExIndex = isChange ? 1 : 0
  const internalOrExternal = isChange ? internal : external
  for (let i = startingKey; i < startingKey + keyCount; i++) {
    const key = internalOrExternal.derive(i)
    pushKey(key, `M/0H/${inExIndex}/${i}`)
  }

  return keys
}

[suusofttruongnv]

Wow !!! Thanks you very much !!!

[suusofttruongnv]

How to convert private key : "cPe5XTzR26eJehgRZj42Bfooa2yoLtHUMYbD17C8eJNoRe3y5HXy" -> to private as hex :
"3d6982c7687c3892ebf32bd092cb2be47d115a39453c218a8e01fd882ec82549" ?

Thanks you !!

[junderw]

key.toWIF() -> key.privateKey.toString('hex')

[suusofttruongnv]

Is the number of wallet addresses created limited?
Thanks !!

[junderw]

minimum index is 0
maximum index is 2147483647

So you could do
(I updated the function to use an option object instead of a bunch of parameters)
getKeysFromMnemonic(mnemonic, { startingKey: 2147483647, keyCount: 1 })
or
getKeysFromMnemonic(mnemonic, { startingKey: 2147483600, keyCount: 48 })
if you wanted.

getKeysFromMnemonic(mnemonic, { keyCount: 2147483647 })
will take forever.

[suusofttruongnv]

Thanks for your answers !!!

[suusofttruongnv]

Hello, Is this library for long term use in the future?

[junderw]

I don't understand your question.

It is released under the ISC license, so that means:

1. We have no obligation to you. No warranty etc.
2. You have no obligation to us. You can use this forever if you want.

[suusofttruongnv]

Thanks you !!!

[suusofttruongnv]

Hello bro, I have questions please help me

1. How to get balance BTC wallet
2. How to send a transaction to an address
3. Show me how to get the transaction history of the wallet

Thank you for your help !!

[junderw]

2 is in the integration tests.

1 and 3 are varied and there are many ways to do it. In general you should run your own Bitcoin node and figure out a way to get utxo info from it. (RPC is one way, or some app that sits on top of bitcoin like NBXplorer is another way)

[suusofttruongnv]

Hi bro,
I want to use Bitcoinjs-lib to do the above 3 things, is it possible? if so please let me know the code!
I just want to use Bitcoinjs-lib without a third party!

Thanks !!!