blockchain - 使用metamask 发布contract , deploy contract with metamask programmatically

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refer to:

https://web3js.readthedocs.io/en/v1.2.11/web3-eth-contract.html#deploy

async function loadWeb3() {
  if (window.ethereum) {
    window.web3 = new Web3(window.ethereum);
    window.ethereum.enable();
  }
}


async function getCurrentAccount() {
  const accounts = await ethereum.request({ method: 'eth_requestAccounts' });
  return accounts[0];
}

async function deploy(){
  await loadWeb3();

  let abi = '<%= raw @contract.contract_template.abi %>'
  let binary_code = "<%= raw @contract.contract_template.binary_code %>"

  var myContract = new web3.eth.Contract(JSON.parse(abi));
  const account = await getCurrentAccount();

  myContract
    .deploy({
      data: "0x"+ binary_code,
    })
    .send(
      {
        from: account,
      },
      function(error, transactionHash){
        if(error){
          console.error(error)
        }else{
          console.info(transactionHash)
        }
      }
    )

    .on('error', function(error){ console.error(error) })
    .on('transactionHash', function(transactionHash){
      console.info(transactionHash)
    })
    .on('receipt', function(receipt){
       console.log(receipt.contractAddress) // contains the new contract address
    })
    .on('confirmation', function(confirmationNumber, receipt){
      console.info("== confirmation", confirmationNumber, receipt) }
    )
    .then(function(newContractInstance){
      console.log(newContractInstance.options.address) // instance with the new contract address
    })
}

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