Anybody here can help me on installing bitcoinjs on my laptop. I'm using windows 10 OS. I succesfully installed the bitcoinjs exe file but i can't install the npm by using the command
npm install npm
I hope somebody can help me.
yes, it is normall as you are asking npm to install npm, which is not really possible.
use : npm install bitcoinjs-lib
By the way, have you installed nodeJS ?
Yeah. I watch the tutorial on youtube regarding creating vanity address using bitcoinJS. In the tutorial. He used that code to install npm which is necessary to do your your suggested code. I saw that code on instruction on BitcoinJS but it has a $ symbol at the beginning. I try that code with $ sign at beginning but it didn't work out.
ok, so, you are new to coding.
$ is displayed in a terminal, these terminals are used bu Unix and MacOSX, so you don't have it in cmd, so i suppose you are using windows.
When you have installed nodejs, create a directory and open a cmd inside the directory.
then do
npm init
then enter the informations, next to this do
npm install --save bitcoinjs-lib jquery
create a .txt file and rename it to main.js or index.js as you specified when npm init.
Then open this file with a software like notepad2 or sublimetext, and add :
var bitcoin = require('bitcoinjs-lib');
var $ = require('jquery'); // yes, we are in 2017, it had been solved
var tx = new bitcoin.TransactionBuilder();
// Add the input (who is paying):
// [previous transaction hash, index of the output to use]
var txId = 'aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31' ;
tx.addInput(txId, 0);
// Add the output (who to pay to):
// [payee's address, amount in satoshis]
tx.addOutput("1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK", 15000);
// Initialize a private key using WIF
var privateKeyWIF = 'L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy';
var keyPair = bitcoin.ECPair.fromWIF(privateKeyWIF);
// Sign the first input with the new key
tx.sign(0, keyPair);
/*-------------------------------------------Look here ---------------------------------------------*/
// Print transaction serialized as hex
var hexTX = tx.build().toHex();
$.post('http://btc.blockr.io/api/v1/tx/push',{"hex":hexTX},function(data){
console.log(data);
});
And you are done.
