基本原則からDAppをテストする (2018年5月の更新)

$ yarn global add remix-ide

$ mkdir test-chain-dir

$ geth --dev --datadir test-chain-dir console

INFO [05-17|14:32:51] Maximum peer count                       ETH=25 LES=0 total=25INFO [05-17|14:32:52] Using developer account                  address=0xf92EcEa910C31e302699e58B866bD2604527dD1dINFO [05-17|14:32:52] Starting peer-to-peer node               instance=Geth/v1.8.6-stable/darwin-amd64/go1.10.1INFO [05-17|14:32:52] Allocated cache and file handles         database=/Users/danielbriskin/tut/test-chain-dir/geth/chaindata cache=768 handles=1024INFO [05-17|14:32:52] Writing custom genesis blockINFO [05-17|14:32:52] Persisted trie from memory database      nodes=12 size=2.26kB time=54.111µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00BINFO [05-17|14:32:52] Initialised chain configuration          config="{ChainID: 1337 Homestead: 0 DAO:  DAOSupport: false EIP150: 0 EIP155: 0 EIP158: 0 Byzantium: 0 Constantinople:  Engine: clique}"INFO [05-17|14:32:52] Initialising Ethereum protocol           versions="[63 62]" network=1INFO [05-17|14:32:52] Loaded most recent local header          number=0 hash=4374f1…a3fed1 td=1INFO [05-17|14:32:52] Loaded most recent local full block      number=0 hash=4374f1…a3fed1 td=1INFO [05-17|14:32:52] Loaded most recent local fast block      number=0 hash=4374f1…a3fed1 td=1INFO [05-17|14:32:52] Regenerated local transaction journal    transactions=0 accounts=0INFO [05-17|14:32:52] Starting P2P networkingINFO [05-17|14:32:52] started whisper v.6.0INFO [05-17|14:32:52] RLPx listener up                         self="enode://38fb7579853407637b21437c1595a47995a63fd39cb7c0a192d891c68728c0d4ed7d0402517f9b915d924594b0e91441fbc6f7963a91f780f74119ab4db5291b@[::]:49775?discport=0"INFO [05-17|14:32:52] IPC endpoint opened                      url=/Users/danielbriskin/tut/test-chain-dir/geth.ipcINFO [05-17|14:32:52] Transaction pool price threshold updated price=18000000000INFO [05-17|14:32:52] Etherbase automatically configured       address=0xf92EcEa910C31e302699e58B866bD2604527dD1dINFO [05-17|14:32:52] Starting mining operationINFO [05-17|14:32:52] Commit new mining work                   number=1 txs=0 uncles=0 elapsed=118.067µsWARN [05-17|14:32:52] Block sealing failed                     err="waiting for transactions"

$ mist --rpc test-chain-dir/geth.ipc

$ /Applications/Mist.app/Contents/MacOS/Mist --rpc test-chain-dir/geth.ipc

> personal.newAccount()Passphrase:Repeat passphrase:"0xb1c7a4b22525f920ccb4c43904bb86ca487f07fe"

> web3.fromWei(eth.getBalance(personal.listAccounts[1]), "ether")0

> web3.fromWei(eth.getBalance(personal.listAccounts[0]), "ether")1.15792089237316195423570985008687907853269984665640564039457584007913129639927e+59

<pre><code class="html">
<div>
    <div>Donation Contract</div>
    <br/>
    <input id='contractaddress' placeholder='contract address'></intput>
    <br/>
    <div>
        <br/>
        <input id='fromGive' placeholder='from' ></intput><input placeholder='amount' id='valueGive'></intput><button id="fallbackbtn" onclick="donate()">give</button>
        <br/>
        <br/>
        <input id='fromMoveFund' placeholder='from' ></intput><input id='moveFundTo' placeholder='move to' ></intput><input id='amountToMove' placeholder='amount' ></intput><button id="movefundbtn" onclick="movefund()">moveFund</button>
        <br/>
        <br/>
        <div id='wait' ></div>
    </div>
    <br/>
    <br/>
    <div id='log'>
    </div>
</div>

<script type="text/javascript">
function donate () {
    var donation = contractspec.at(document.getElementById('contractaddress').value)
    donation.donate({
        from: document.getElementById('fromGive').value,
        value: document.getElementById('valueGive').value
    }, function (error, txHash) {
        tryTillResponse(txHash, function (error, receipt) {
            alert('done ' + txHash)
        })
    })
}

function movefund () {
    var donation = contractspec.at(document.getElementById('contractaddress').value)
    donation.moveFund(
        document.getElementById('moveFundTo').value,
        document.getElementById('amountToMove').value,
        function (error, txHash) {
            tryTillResponse(txHash, function (error, receipt) {
                alert('done ' + txHash)
            })
        })
}

var contractspec = web3.eth.contract([{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"moveFund","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"donate","outputs":[],"payable":true,"type":"function"},{"inputs":[],"payable":false,"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"fundMoved","type":"event"}]);

function tryTillResponse (txhash, done) {
    document.getElementById('wait').innerHTML = 'waiting for the transaction to be mined ...'
    web3.eth.getTransactionReceipt(txhash, function (err, result) {
        if (!err && !result) {
            // Try again with a bit of delay
            setTimeout(function () { tryTillResponse(txhash, done) }, 500)
        } else {
            document.getElementById('wait').innerHTML = ''
            var log = document.createElement("div")
            log.innerHTML = JSON.stringify(result)
            document.getElementById('log').appendChild(log)
            done(err,result)
        }
    })
}
</script>

</code></pre>

$ python -m SimpleHTTPServer

 <script src="https://cdn.jsdelivr.net/gh/ethereum/web3.js/dist/web3.min.js"></script>

if (typeof web3 !== 'undefined') {
  web3 = new Web3(web3.currentProvider);
} else {
  // set the provider you want from Web3.providers
  web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
}

$ remix-ide

INFO [05-18|11:07:11] Submitted contract creation              fullhash=0xc6e89db6d500cb8cfa8f16ff590f4f866de0cc7fe31d60d84e6f72f43db39327 contract=0xE6D27720E581b5133EeB9011006A47C750AEa426
INFO [05-18|11:07:11] Commit new mining work                   number=1 txs=1 uncles=0 elapsed=2.536ms
INFO [05-18|11:07:11] Successfully sealed new block            number=1 hash=c551ee…91cd18
INFO [05-18|11:07:11] 🔨 mined potential block                  number=1 hash=c551ee…91cd18
INFO [05-18|11:07:11] Commit new mining work                   number=2 txs=0 uncles=0 elapsed=1.153ms
WARN [05-18|11:07:11] Block sealing failed                     err="waiting for transactions"

INFO [05-18|11:24:26] Submitted transaction                    fullhash=0x69c5346dbaf3b5a5415134c181ba16bcda76966bd60b9a42cf646651fc4a517a recipient=0xE6D27720E581b5133EeB9011006A47C750AEa426
INFO [05-18|11:24:26] Commit new mining work                   number=2 txs=1 uncles=0 elapsed=801.974µs
INFO [05-18|11:24:26] Successfully sealed new block            number=2 hash=f88586…e73ee1
INFO [05-18|11:24:26] 🔨 mined potential block                  number=2 hash=f88586…e73ee1
INFO [05-18|11:24:26] Commit new mining work                   number=3 txs=0 uncles=0 elapsed=514.943µs
WARN [05-18|11:24:26] Block sealing failed                     err="waiting for transactions"