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bellaj/Metamask

Created May 22, 2017 17:36
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Metamask
<!DOCTYPE html>
<script>
window.addEventListener('load', function() {
// Checking if Web3 has been injected by the browser (Mist/MetaMask)
if (typeof web3 !== 'undefined') {
// Use Mist/MetaMask's provider
window.web3 = new Web3(web3.currentProvider);
} else {
console.log('No web3? You should consider trying MetaMask!')
// fallback - use your fallback strategy (local node / hosted node + in-dapp id mgmt / fail)
window.web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
}
startApp()
})
function startApp(web3) {
const address = '0x55c77e9c98187ff9123f2becafc66efd9a1218bf'
const abi = [{"constant":true,"inputs":[],"name":"my_method","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"}]
var contract = window.web3.eth.contract(abi).at(address);
contract.my_method(function(error, result){
if(!error)
console.log("result:"+result)
else
console.error("error:"+error);
});
}
</script>
</script>
<h2>Test</h2>
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