Ethereum: How to do sendRawTransaction to bitcoind JSON-RPC using bitcoin-core package in nodejs

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Here’s an article explaining how to send RawTransaction in JSON-RPC format using the Bitcoin Core package in Node.js:

Sending raw JSON-RPC transactions with Bitcoin Core in Node.js

In this article, we’ll show you how to send a RawTransaction in JSON-RPC format using the Bitcoin Core package in Node.js.

Prerequisites

Before you start, make sure you have the Bitcoin Core package installed and running a compatible version. Also, make sure your computer is running a Bitcoin Core node with a valid address to which you want to send the raw transaction.

Install Required Packages

To use the Bitcoin Core package in Node.js, we need to install the bitcoin-core package using npm:

npm install bitcoin-core --save

Send raw transaction in JSON-RPC format

The following code snippet shows how to send a RawTransaction in JSON-RPC format using the Bitcoin Core package:

const BitcoinCore = require('bitcoin-core');
// Set up Bitcoin Core connection
const bc = new BitcoinCore({
url: ' // replace with your Bitcoin Core node URL
});
// Create a new transaction object
constant tx = {
version: 1,
hash: 'your_hash_tx_here',
from_address: 'your_from_address_here',
to_address: 'to_address_here', // optional
flags: 'raw' // optional, can be one of: 'full', 'confirm' or 'send-only'
};
// Create a new raw transaction object
const rawTx = {
tx_type: 'sendrawtransaction',
Raw: Texas
};
// Send the raw transaction in JSON-RPC format using Bitcoin Core
bc.sendRawTransaction(rawTx, (err, response) => {
if (error) {
console.error('Error sending unprocessed transaction:', err);
} more {
// Get the transaction hash from the response
const txHash = response.hash;
console.log(Transaction Hash: ${txHash});
}
});

In this example, we create a new transaction' object with the required properties (version, hash, sender address, recipient address, and flags). Then we create a new raw transaction object with the same properties. Finally, we send the raw transaction in JSON-RPC format using thesendRawTransactionmethod of the Bitcoin Core connection.

• Therawproperty in thetxobject indicates that we want to send a raw transaction.

• Bitcoin Core's response includes ahash’ field for each raw transaction. This hash can be used as a benchmark to check the integrity of the transaction.

After completing these steps, you will now be able to send raw JSON-RPC transactions using the Bitcoin Core package in Node.js.

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