SimpleStarProviderDilemma.js

import Contract from 'truffle-contract';

import VotingArtifact from '../build/contracts/Voting.json';

import Web3 from 'web3';

function Star(candidate) {
	const Voting = Contract(VotingArtifact);

	var web3Provided;
	// Supports Metamask and Mist, and other wallets that provide 'web3'.
	if (typeof web3 !== 'undefined') {
		// Injected web3 detected.
		// Use the Mist/wallet provider.
		// eslint-disable-next-line
		web3Provided = new Web3(web3.currentProvider);
	} else {
		// No web3 instance injected, using Local web3.
		web3Provided = new Web3(AnySupportedProvidedWithHardcodedAccount);
	}
	Voting.setProvider(web3Provided.currentProvider);
	web3Provided.eth.getAccounts((error, result) => {
		Voting.deployed().then(contractInstance => {
			contractInstance.voteForCandidate(candidate, {
				// configure the priority of the vote
				gas: 140000,
				// ***
				// In a real dapp the coinbase should be provided by your wallet.
				// ***
				from: result[0],
			});
		});
	});
}