全部产品

使用geth部署私密智能合约

更新时间:2019-01-17 20:59

  1. 启动一个连接到Quorum节点的交互控制台,您可以参考文档开启geth交互控制台来建立一个交互控制台

  2. 在交互控制台输入以下指令,创建一个以太坊账户。如果您已经在节点上创建了以太坊账户,您也可以使用已有账户完成后续操作。

    1. // create a account that use empty password
    2. var account = personal.newAccount("");
    3. // using an existing account in node
    4. // var account = eth.accounts[0]
    5. // unlock account for 300 seconds with empty password
    6. personal.unlockAccount(account, "", 300);
    7. // set it as default account
    8. web3.eth.defaultAccount = account;
  3. 使用solc或truffle等第三方编译工具,编译智能合约,获取智能合约的ABI和字节码(bytecode)。您可以参考编译智能合约编译您的智能合约。

  4. 您需要额外指定参与到私有智能合约的各个节点的 transaction manager 的公钥,您可以在节点配置中获取到该值。在交互控制台输入以下示例命令,在Quorum网络中部署智能合约。在您需要部署自己的智能合约时,您需要将abibytecode替换为您智能合约的编译结果。

    1. // tx-mangager public key list; only node in this list that can access private contract and it's data
    2. var privateFor = ["WLyCI0x1NBdy2VI4IdmxGYhRP7PKGL6wD87iN5vKp3w="];
    3. // abi for contract
    4. var abi = [{"constant":true,"inputs":[],"name":"storedData","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"x","type":"uint256"}],"name":"set","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"retVal","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"initVal","type":"uint256"}],"payable":false,"type":"constructor"}];
    5. // compiled solidity source code using https://github.com/jpmorganchase/quorum-examples/blob/master/examples/7nodes/simplestorage.sol
    6. var bytecode = "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";
    7. var address = ""
    8. var simpleContract = web3.eth.contract(abi);
    9. var simple = simpleContract.new(42, {
    10. from: account,
    11. data: bytecode,
    12. gas: 0x47b760,
    13. privateFor: privateFor
    14. }, function(e, contract) {
    15. if (e) {
    16. console.log("err creating contract", e);
    17. } else {
    18. if (!contract.address) {
    19. console.log("Contract transaction send: TransactionHash: " + contract.transactionHash + " waiting to be mined...");
    20. } else {
    21. console.log("Contract mined! Address: " + contract.address);
    22. address = contract.address
    23. console.log(contract);
    24. }
    25. }
    26. });
  5. 当部署智能合约的交易被共识节点打包,您可以在交互控制台看到您部署的合约地址,后续您可以向该地址发起交易,调用私密智能合约。