Creation and signature of Segwit transactions with Bitcore-Local
As a developer who uses the popular Bitcore-Libe NPM package to interact with the Bitcoin network, you are probably familiar with the creation and signature of the inherited transactions. However, things have changed with the introduction of segregated witnesses (segwit) in the Bitcoin protocol. In this article, we will go through how to create and sign a Segwit transaction using “bitcore-book” on the package of local cars.
Premise
Before you continue, make sure you have:
- Node.js installed (
npmfilament).
- `
Bitcore-libinstalled in your project (you can install it by performing NPM Install Bitcore-Libe or `Fire add bitcore-book).
Creating a Segwit transaction
A Segwit transaction consists of two types: entry and exit. The entry is the sender's signature, while the exit is the public address of the recipient.
To create a new segment (ie a transaction with multiple inputs and exits), you will usebitcore-book’Screatseg (). Here’s an example:
`JavaScript
Const bitcore = requirement ('bitcore');
// create a new Bitcoin object
Const bitcoin = new bitcore ();
// set the predefined portfolio settings
Bitcoin.defaultwallet = 'my-wallet';
// create a new segment (transaction with multiple entries and output)
Consist transaction = bitcoin.createseg ({
Input: {
// set the sender's signature as an entry
Sendersignure: '0.1234567890ABCDEF',
},
Production: {
// sets the public address of the recipient as an exit
Dembiemaddress: '1Gn9x8reiqk7wv6mjf5btpq2e4jzf4rc',
},
});
Sign a Segwit transaction
Once the segment is created, you must sign it. To do this, he uses the “bitcore-book” sign (). Here’s an example:
`JavaScript
// sign the transaction with private key (keep -Seeds safe!)
Constantinum = bitcoin.sign (transaction, 'your key-friend');
Sign a Segwit transaction using any NPM pack
While we will use Bitcore-Lib, you can use any other NPM package to create and sign a Segwit transaction. A popular alternative is “bitcoin-js”.
To sign a Segwit transaction with “bitcoin-js”, install it first:
`Bash
NPM Install Bitcoin-JS
So, the library in your Javascript file matters:
`JavaScript
Const {bitcoin} = requirement ('bitcoin-js');
Const bitcoin = new bitcoin ();
// create a new segment (transaction with multiple entries and output)
Consist transaction = bitcoin.createseg ({
Input: {
// set the sender's signature as an entry
Sendersignure: '0.1234567890ABCDEF',
},
Production: {
// sets the public address of the recipient as an exit
Dembiemaddress: '1Gn9x8reiqk7wv6mjf5btpq2e4jzf4rc',
},
});
// sign the transaction with the private key (keep the seeds safe!)
Constantinum = bitcoin.sign (transaction, 'your key-friend');
Full Example
Here is a complete example that demonstrates how to create and sign a Segwit transaction using both “bitcore-like and instinctin-js”:
“ JavaScript
Const bitcore = requirement (‘bitcore’);
Const bitcoinjs = requirement (‘bitcoin-js’);
// create a new Bitcoin object
Const bitcoin = new bitcore ();
// set the predefined portfolio settings
Bitcoin.defaultwallet = ‘my-wallet’;
// create a new segment (transaction with multiple entries and output)
Consist transaction = bitcoin.createseg ({
Input: {
// set the sender’s signature as an entry
Sendersignure: ‘0.1234567890ABCDEF’,
},
Production: {
// sets the public address of the recipient as an exit
Dembiemaddress: ‘1Gn9x8reiqk7wv6mjf5btpq2e4jzf4rc’,
},
});
// sign the transaction with private key (keep -Seeds safe!)
Constantinum = bitcoin.sign (transaction, ‘your key-friend’);
Console.log (signature.
