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A Bitcoin miner written in the Dart language.
Dart
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example
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README.md
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README.md

Dartminer - An example bitcoin mining package written in Dart.

This is an example application of how to build a Bitcoin mining application using the Dart language. I also recommend only using this application using the TestNet within Bitcoin so that you do not risk of hitting the live network with sample code.

On my machine, I was able to hit hash rate of about 500kH/s, which turns out to be about a 15x speed improvement on a JavaScript implementation... While this is impressive, here's hoping that the Dash VM improves in performance with future releases.

Usage

Below is the steps necessary to get this to work.

Mining with getwork.

import 'package:dartminer/dartminer.dart';

 // Our main entry point.
void main() {  

  // Create a bitcoin client with the proper configuration.  
  Bitcoin bitcoin = new Bitcoin({
    "scheme": "http",
    "host": "127.0.0.1",
    "port": 18332,
    "user": "bitcoinrpc",
    "pass": "123123123123"
  });

  // Get work from the bitcoind.
  bitcoin.getwork().then((Map<String, String> work) {

    // Work.
    print(work);

    // Create the miner.
    Miner miner = new Miner.fromJSON(work);

    // Mine for gold!
    Map<String, String> result = miner.mine();

    // If the result isn't null, then
    if (result != null) {
      print('Gold!');
      print(result);
      bitcoin.getwork(params: [result['data']]);
    }
  });
}

Mining with getblocktemplate

// Import the dartminer package.
import 'package:dartminer/dartminer.dart';

// Our main file
void main() {  

  // Create a bitcoin client with the proper configuration.  
  Bitcoin bitcoin = new Bitcoin({
    "scheme": "http",
    "host": "127.0.0.1",
    "port": 18332,
    "user": "bitcoinrpc",
    "pass": "123123123123123"
  });

  // Get work from the bitcoind.
  bitcoin.getblocktemplate().then((dynamic tpl) {

    // Create the new template.
    Template template = new Template.fromJSON(tpl, address: '1N438cAaGjY9cyZ5J5hgvixkch3hiu6XA1');

    // Mine for gold.
    Map<String, String> result = template.mine();

    // See if there is a result.
    if (result != null) {

      // We found gold!
      print('GOLD!');

      // Print the result.
      print(result);

      // Submit the block.
      bitcoin.submitblock(params: [result['data']]);
    }
  });
}

Donations Welcome: 1N438cAaGjY9cyZ5J5hgvixkch3hiu6XA1

Enjoy...

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