Hướng dẫn triển khai

pragma solidity 0.5.12;

contract Mortal {
    /* Define variable owner of the type address */
    address payable owner;
    /* This function is executed at initialization and sets the owner of the contract */
    constructor () public { owner = msg.sender; }
    /* Function to recover the funds on the contract */
    function kill() public payable { if (msg.sender == owner) selfdestruct(owner); }
}

contract KlaytnGreeter is Mortal {
    /* Define variable greeting of the type string */
    string greeting;
    /* This runs when the contract is executed */
    constructor (string memory _greeting) public {
        greeting = _greeting;
    }
    /* Main function */
    function greet() public view returns (string memory) {
        return greeting;
    }
}

$ sudo npm install -g truffle

$ mkdir hello-klaytn
$ cd hello-klaytn
$ truffle init
$ npm install truffle-hdwallet-provider-klaytn

pragma solidity 0.5.6;

contract Mortal {
    /* Define variable owner of the type address */
    address payable owner;
    /* This function is executed at initialization and sets the owner of the contract */
    constructor () public { owner = msg.sender; }
    /* Function to recover the funds on the contract */
    function kill() public payable { if (msg.sender == owner) selfdestruct(owner); }
}

contract KlaytnGreeter is Mortal {
    /* Define variable greeting of the type string */
    string greeting;
    /* This runs when the contract is executed */
    constructor (string memory _greeting) public {
        greeting = _greeting;
    }
    /* Main function */
    function greet() public view returns (string memory) {
        return greeting;
    }
}

const Migrations = artifacts.require("./Migrations.sol");
const KlaytnGreeter = artifacts.require("./KlaytnGreeter.sol");
module.exports = function(deployer) {
  deployer.deploy(Migrations);
  deployer.deploy(KlaytnGreeter, 'Hello, Klaytn');
};

const HDWalletProvider = require("truffle-hdwallet-provider-klaytn");

const privateKey = "0x3de..." // Nhập khóa riêng tư của bạn;

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*" // Match any network id
    },
    testnet: {
      provider: () => new HDWalletProvider(privateKey, "https://your.baobab.en.url:8651"),
      network_id: '1001', //Klaytn baobab testnet's network id
      gas: '8500000',
      gasPrice: null
    },
    mainnet: {
      provider: () => new HDWalletProvider(privateKey, "https://your.cypress.en.url:8651"),
      network_id: '8217', //Klaytn mainnet's network id
      gas: '8500000',
      gasPrice: null
    }
  },
  compilers: {
    solc: {
      version: "0.5.6"
    }
  }
};

$ truffle deploy --network testnet

$ truffle deploy --network mainnet

pragma solidity 0.5.6;

contract Mortal {
    /* Define variable owner of the type address */
    address payable owner;
    /* This function is executed at initialization and sets the owner of the contract */
    constructor () public { owner = msg.sender; }
    /* Function to recover the funds on the contract */
    function kill() public payable { if (msg.sender == owner) selfdestruct(owner); }
}

contract KlaytnGreeter is Mortal {
    /* Define variable greeting of the type string */
    string greeting;
    /* This runs when the contract is executed */
    constructor (string memory _greeting) public {
        greeting = _greeting;
    }
    /* Main function */
    function greet() public view returns (string memory) {
        return greeting;
    }
}

$ sudo npm install -g [email protected]

$ solcjs KlaytnGreeter.sol --bin

$ npm install caver-js.

const Caver = require("caver-js");
const caver = new Caver("https://public-en-baobab.klaytn.net")

const walletInstance = caver.klay.tài khoảns.privateKeyToAccount(
  '0x3de0c9...' // enter your private key to deploy contract with
);
caver.klay.tài khoảns.wallet.add(walletInstance);

const fs = require('fs')
const bytecode = fs.readFileSync('./KlaytnGreeter_sol_KlaytnGreeter.bin') // compiled output

const constructorType = ['string']  // enter appropriate constructor type
const constructorValue = ['Hello, Klaytn!']

const params = caver.klay.abi.encodeParameters(constructorType, constructorValue);

caver.klay.sendTransaction({
  from: caver.klay.tài khoảns.wallet[0].address,
  gas: "50000000",
  data: bytecode.toString() + params.substring(2, params.length)
})
.once("receipt", receipt => {
  console.log(receipt)
})
.once("error", error => {
  console.log(error);
})

$ node deploy.js