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| node_modules/* | ||
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| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <title>Vote Coin</title> | ||
| <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700' rel='stylesheet' type='text/css'> | ||
| <script src="./app.js"></script> | ||
| </head> | ||
| <body> | ||
| <h1>US to ETH</h1> | ||
| <p>The current ETH to USD conversion is listed at <span id="price"></span></p> | ||
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| <br> | ||
| <h1>Vote</h1> | ||
| <br><br><button id="send" onclick="App.voteYes()">This is correct</button> | ||
| <br><br><button id="send" onclick="App.voteNo()">This is incorrect</button> | ||
| <br><br> | ||
| <span id="status"></span> | ||
| <br> | ||
| <span class="hint"><strong>Hint:</strong> open the browser developer console to view any errors and warnings.</span> | ||
| </body> | ||
| </html> |
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| // Import the page's CSS. Webpack will know what to do with it. | ||
| import '../styles/app.css' | ||
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| // Import libraries we need. | ||
| import { | ||
| default as Web3 | ||
| } from 'web3' | ||
| import { | ||
| default as contract | ||
| } from 'truffle-contract' | ||
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| // Import our contract artifacts and turn them into usable abstractions. | ||
| import voteCoinArtifact from '../../build/contracts/VoteCoin.json' | ||
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| // MetaCoin is our usable abstraction, which we'll use through the code below. | ||
| const VoteCoin = contract(voteCoinArtifact) | ||
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| // The following code is simple to show off interacting with your contracts. | ||
| // As your needs grow you will likely need to change its form and structure. | ||
| // For application bootstrapping, check out window.addEventListener below. | ||
| let accounts | ||
| let account | ||
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| const App = { | ||
| start: function() { | ||
| const self = this | ||
| // Bootstrap the MetaCoin abstraction for Use. | ||
| VoteCoin.setProvider(web3.currentProvider) | ||
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| // Get the initial account balance so it can be displayed. | ||
| web3.eth.getAccounts(function(err, accs) { | ||
| if (err != null) { | ||
| alert('There was an error fetching your accounts.') | ||
| return | ||
| } | ||
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| if (accs.length === 0) { | ||
| alert("Couldn't get any accounts! Make sure your Ethereum client is configured correctly.") | ||
| return | ||
| } | ||
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| accounts = accs | ||
| account = accounts[0] | ||
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| self.fetchPrice() | ||
| // Also need call to function that updates prices on page here | ||
| }) | ||
| }, | ||
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| setStatus: function(message) { | ||
| const status = document.getElementById('status') | ||
| status.innerHTML = message | ||
| }, | ||
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| fetchPrice: function() { | ||
| VoteCoin.deployed().then(function(instance) { | ||
| return instance.ETHUSD.call() | ||
| }).then(function(value) { | ||
| const balanceElement = document.getElementById('price') | ||
| balanceElement.innerHTML = value | ||
| console.log("We have a new price!", value) | ||
| }).catch(function(e) { | ||
| console.log(e) | ||
| this.setStatus('Error getting balance; see log.') | ||
| }) | ||
| }, | ||
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| voteYes: function() { | ||
| VoteCoin.deployed().then(function(instance) { | ||
| return instance.currVoteId.call() | ||
| }).then(function(value) {return value.toNumber()}).then(function(voteId) { | ||
| VoteCoin.deployed().then(function(instance) { | ||
| instance.vote(voteId, 1, {from: account}) | ||
| }) | ||
| }).catch(function(e) { | ||
| console.log(e) | ||
| }) | ||
| }, | ||
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| voteNo: function() { | ||
| VoteCoin.deployed().then(function(instance) { | ||
| return instance.currVoteId.call() | ||
| }).then(function(value) {return value.toNumber()}).then(function(voteId) { | ||
| VoteCoin.deployed().then(function(instance) { | ||
| instance.vote(voteId, 0, {from: account}) | ||
| }) | ||
| }).catch(function(e) { | ||
| console.log(e) | ||
| }) | ||
| }, | ||
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| } | ||
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| window.App = App | ||
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| window.addEventListener('load', function() { | ||
| // Checking if Web3 has been injected by the browser (Mist/MetaMask) | ||
| if (typeof web3 !== 'undefined') { | ||
| console.warn( | ||
| 'Using web3 detected from external source.' + | ||
| ' If you find that your accounts don\'t appear or you have 0 MetaCoin,' + | ||
| ' ensure you\'ve configured that source properly.' + | ||
| ' If using MetaMask, see the following link.' + | ||
| ' Feel free to delete this warning. :)' + | ||
| ' http://truffleframework.com/tutorials/truffle-and-metamask' | ||
| ) | ||
| // Use Mist/MetaMask's provider | ||
| window.web3 = new Web3(web3.currentProvider) | ||
| } else { | ||
| console.warn( | ||
| 'No web3 detected. Falling back to http://127.0.0.1:9545.' + | ||
| ' You should remove this fallback when you deploy live, as it\'s inherently insecure.' + | ||
| ' Consider switching to Metamask for development.' + | ||
| ' More info here: http://truffleframework.com/tutorials/truffle-and-metamask' | ||
| ) | ||
| // fallback - use your fallback strategy (local node / hosted node + in-dapp id mgmt / fail) | ||
| window.web3 = new Web3(new Web3.providers.HttpProvider('http://127.0.0.1:9545')) | ||
| } | ||
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| App.start() | ||
| }) |
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