agrcrobles · January 28, 2018 15:11 · agrcrobles · Jan 20, 2018
diff --git a/1_initial_migration.js b/1_initial_migration.js
 var Migrations = artifacts.require('./Migrations.sol');

 module.exports = function(deployer) {
 	deployer.deploy(Migrations, { gas: 4612388 });
 };
diff --git a/2_deploy_contracts.js b/2_deploy_contracts.js
 var Voting = artifacts.require('./Voting.sol');
 module.exports = function(deployer) {
 	deployer.deploy(Voting, [
 		'1',
 		'2',
 		'3',
 		'4',
 		'5',
 		'6',
 		'7',
 		'8',
 		'9',
 		'10',
 		'11',
 		'12',
 		'13',
 		'14',
 		'15',
 		'16',
 		'17',
 		'18',
 	]);
 };
diff --git a/README.md b/README.md
diff --git a/Migrations.sol b/Migrations.sol
 pragma solidity ^0.4.2;

 contract Migrations {
  address public owner;
  uint public last_completed_migration;

  modifier restricted() {
    if (msg.sender == owner) _;
  }

  function Migrations() {
    owner = msg.sender;
  }

  function setCompleted(uint completed) restricted {
    last_completed_migration = completed;
  }

  function upgrade(address new_address) restricted {
    Migrations upgraded = Migrations(new_address);
    upgraded.setCompleted(last_completed_migration);
  }
 }
diff --git a/truffle.js b/truffle.js
 var mnemonic = 'MY_MNEMONIC';

 var HDWalletProvider = require('truffle-hdwallet-provider');

 var bip39 = require('bip39');
 var hdkey = require('ethereumjs-wallet/hdkey');
 var ProviderEngine = require('web3-provider-engine');
 var WalletSubprovider = require('web3-provider-engine/subproviders/wallet.js');
 var Web3Subprovider = require('web3-provider-engine/subproviders/web3.js');
 var Web3 = require('web3');

 // Get our mnemonic and create an hdwallet

 var hdwallet = hdkey.fromMasterSeed(bip39.mnemonicToSeed(mnemonic));

 // Get the first account using the standard hd path.
 var wallet_hdpath = "m/44'/60'/0'/0/";
 var wallet = hdwallet.derivePath(wallet_hdpath + '0').getWallet();
 var address = '0x' + wallet.getAddress().toString('hex');

 var providerUrl = 'https://ropsten.infura.io/';
 var engine = new ProviderEngine();
 engine.addProvider(new WalletSubprovider(wallet, {}));
 engine.addProvider(
 	new Web3Subprovider(new Web3.providers.HttpProvider(providerUrl))
 );

 // log new blocks
 engine.on('block', function(block) {
 	console.log('================================');
 	console.log(
 		'BLOCK CHANGED:',
 		'#' + block.number.toString('hex'),
 		'0x' + block.hash.toString('hex')
 	);
 	console.log('================================');
 });

 // network connectivity error
 engine.on('error', function(err) {
 	// report connectivity errors
 	console.error(err.stack);
 });

 engine.start(); // Required by the provider engine.

 module.exports = {
 	networks: {
 		development: {
 			host: '127.0.0.1', // this url is local@home and should be changed
 			port: 8545,
 			network_id: '*',
 		},
 		ropsten: {
 			network_id: 3, // Official ropsten network id
 			provider: new HDWalletProvider(
 				mnemonic,
 				'https://ropsten.infura.io/'
 			),
 			from: address, // Use the address we derived
 			gas: 3000000,
 		},
 	},
 };
diff --git a/voting-deploy.json b/voting-deploy.json
 {
  "name": "voting-deploy",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "format": "prettier --ignore-path .gitignore --single-quote --use-tabs --trailing-comma es5 --write '**/*.js'",
    "copy-local": "cp -R build/* ../react-native-ethereum-votes/build"
  },
  "author": "Alejandro Garcia <[email protected]>",
  "engines": {
    "node": ">=6.0.0"
  },
  "license": "MIT",
  "dependencies": {
    "bip39": "^2.4.0",
    "ethereumjs-wallet": "^0.6.0",
    "truffle-hdwallet-provider": "0.0.3",
    "web3": "^0.18.4",
    "web3-provider-engine": "^8.6.1",
    "zeppelin-solidity": "^1.2.0"
  },
  "devDependencies": {
    "prettier": "^1.10.2"
  }
 }
diff --git a/Voting.sol b/Voting.sol
 pragma solidity ^0.4.18;
 // We have to specify what version of compiler this code will compile with

 contract Voting {
  /* mapping field below is equivalent to an associative array or hash.
  The key of the mapping is candidate name stored as type bytes32 and value is
  an unsigned integer to store the vote count
  */
  
  mapping (bytes32 => uint8) public votesReceived;
  
  /* Solidity doesn't let you pass in an array of strings in the constructor (yet).
  We will use an array of bytes32 instead to store the list of candidates
  */
  
  bytes32[] public candidateList;

  /* This is the constructor which will be called once when you
  deploy the contract to the blockchain. When we deploy the contract,
  we will pass an array of candidates who will be contesting in the election
  */
  function Voting(bytes32[] candidateNames) public {
    candidateList = candidateNames;
  }
  function allCandidates() view public returns (bytes32[]) {
    return candidateList;
  }
  // This function returns the total votes a candidate has received so far
  function totalVotesFor(bytes32 candidate) view public returns (uint8) {
    require(validCandidate(candidate));
    return votesReceived[candidate];
  }

  // This function increments the vote count for the specified candidate. This
  // is equivalent to casting a vote
  function voteForCandidate(bytes32 candidate, uint8 votes) public {
    require(validCandidate(candidate));
    votesReceived[candidate] += votes;
  }

  function validCandidate(bytes32 candidate) view public returns (bool) {
    for(uint i = 0; i < candidateList.length; i++) {
      if (candidateList[i] == candidate) {
        return true;
      }
    }
    return false;
  }
 }
	var Migrations = artifacts.require('./Migrations.sol');

	module.exports = function(deployer) {
	deployer.deploy(Migrations, { gas: 4612388 });
	};
	var Voting = artifacts.require('./Voting.sol');
	module.exports = function(deployer) {
	deployer.deploy(Voting, [
	'1',
	'2',
	'3',
	'4',
	'5',
	'6',
	'7',
	'8',
	'9',
	'10',
	'11',
	'12',
	'13',
	'14',
	'15',
	'16',
	'17',
	'18',
	]);
	};
	pragma solidity ^0.4.2;

	contract Migrations {
	address public owner;
	uint public last_completed_migration;

	modifier restricted() {
	if (msg.sender == owner) _;
	}

	function Migrations() {
	owner = msg.sender;
	}

	function setCompleted(uint completed) restricted {
	last_completed_migration = completed;
	}

	function upgrade(address new_address) restricted {
	Migrations upgraded = Migrations(new_address);
	upgraded.setCompleted(last_completed_migration);
	}
	}
	var mnemonic = 'MY_MNEMONIC';

	var HDWalletProvider = require('truffle-hdwallet-provider');

	var bip39 = require('bip39');
	var hdkey = require('ethereumjs-wallet/hdkey');
	var ProviderEngine = require('web3-provider-engine');
	var WalletSubprovider = require('web3-provider-engine/subproviders/wallet.js');
	var Web3Subprovider = require('web3-provider-engine/subproviders/web3.js');
	var Web3 = require('web3');

	// Get our mnemonic and create an hdwallet

	var hdwallet = hdkey.fromMasterSeed(bip39.mnemonicToSeed(mnemonic));

	// Get the first account using the standard hd path.
	var wallet_hdpath = "m/44'/60'/0'/0/";
	var wallet = hdwallet.derivePath(wallet_hdpath + '0').getWallet();
	var address = '0x' + wallet.getAddress().toString('hex');

	var providerUrl = 'https://ropsten.infura.io/';
	var engine = new ProviderEngine();
	engine.addProvider(new WalletSubprovider(wallet, {}));
	engine.addProvider(
	new Web3Subprovider(new Web3.providers.HttpProvider(providerUrl))
	);

	// log new blocks
	engine.on('block', function(block) {
	console.log('================================');
	console.log(
	'BLOCK CHANGED:',
	'#' + block.number.toString('hex'),
	'0x' + block.hash.toString('hex')
	);
	console.log('================================');
	});

	// network connectivity error
	engine.on('error', function(err) {
	// report connectivity errors
	console.error(err.stack);
	});

	engine.start(); // Required by the provider engine.

	module.exports = {
	networks: {
	development: {
	host: '127.0.0.1', // this url is local@home and should be changed
	port: 8545,
	network_id: '*',
	},
	ropsten: {
	network_id: 3, // Official ropsten network id
	provider: new HDWalletProvider(
	mnemonic,
	'https://ropsten.infura.io/'
	),
	from: address, // Use the address we derived
	gas: 3000000,
	},
	},
	};
	{
	"name": "voting-deploy",
	"version": "1.0.0",
	"description": "",
	"main": "index.js",
	"scripts": {
	"format": "prettier --ignore-path .gitignore --single-quote --use-tabs --trailing-comma es5 --write '*/.js'",
	"copy-local": "cp -R build/* ../react-native-ethereum-votes/build"
	},
	"author": "Alejandro Garcia <[email protected]>",
	"engines": {
	"node": ">=6.0.0"
	},
	"license": "MIT",
	"dependencies": {
	"bip39": "^2.4.0",
	"ethereumjs-wallet": "^0.6.0",
	"truffle-hdwallet-provider": "0.0.3",
	"web3": "^0.18.4",
	"web3-provider-engine": "^8.6.1",
	"zeppelin-solidity": "^1.2.0"
	},
	"devDependencies": {
	"prettier": "^1.10.2"
	}
	}
	pragma solidity ^0.4.18;
	// We have to specify what version of compiler this code will compile with

	contract Voting {
	/* mapping field below is equivalent to an associative array or hash.
	The key of the mapping is candidate name stored as type bytes32 and value is
	an unsigned integer to store the vote count
	*/

	mapping (bytes32 => uint8) public votesReceived;

	/* Solidity doesn't let you pass in an array of strings in the constructor (yet).
	We will use an array of bytes32 instead to store the list of candidates
	*/

	bytes32[] public candidateList;

	/* This is the constructor which will be called once when you
	deploy the contract to the blockchain. When we deploy the contract,
	we will pass an array of candidates who will be contesting in the election
	*/
	function Voting(bytes32[] candidateNames) public {
	candidateList = candidateNames;
	}
	function allCandidates() view public returns (bytes32[]) {
	return candidateList;
	}
	// This function returns the total votes a candidate has received so far
	function totalVotesFor(bytes32 candidate) view public returns (uint8) {
	require(validCandidate(candidate));
	return votesReceived[candidate];
	}

	// This function increments the vote count for the specified candidate. This
	// is equivalent to casting a vote
	function voteForCandidate(bytes32 candidate, uint8 votes) public {
	require(validCandidate(candidate));
	votesReceived[candidate] += votes;
	}

	function validCandidate(bytes32 candidate) view public returns (bool) {
	for(uint i = 0; i < candidateList.length; i++) {
	if (candidateList[i] == candidate) {
	return true;
	}
	}
	return false;
	}
	}