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truffle开发配置

Posted by 姚飞亮 on 2020-11-01

truffle开发配置

1.安装

sudo npm install -g truffle --unsafe-perm=true --allow-root

2.初始化

truffle init

配置部署账号

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> //secrets.json 助记词
> {
>     "mnemonic": "window habit dragon snake *** *** *** clock hold bar public dust",
>     "projectId": "272c7dbe1460492b804fdbeffb36cab4"
> }
>

3.修改 truffle-config.js 文件

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const path = require("path");
const { projectId, mnemonic } = require('./secrets.json');
const HDWalletProvider = require('@truffle/hdwallet-provider');
module.exports = {
  contracts_build_directory: path.join(__dirname, "client/src/contracts"),
  networks: {
    rinkeby: {
      provider: () => new HDWalletProvider(
        mnemonic, `https://rinkeby.infura.io/v3/0c23855fdde64855986fd08b858f1906`
      ),
      network_id:4,
      gas: 8500000,           // Gas sent with each transaction (default: ~6700000)
      gasPrice: 20000000000,  // 20 gwei (in wei) (default: 100 gwei)
      production: true    // Treats this network as if it was a public net. (default: false)
    },
  },
  compilers: {
      solc: {
          version: "0.6.2", // A version or constraint - Ex. "^0.5.0"
          
      }
  }
};

4.编译合约

truffle compile

5.部署合约

truffle migrate --network rinkeby //--reset

6.调用合约

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truffle console --network rinkeby
Migrations.deployed().then((i) => { instance = i})
//let instance = await Migrations.deployed()
//let instance = await Migrations.new()
//let instance = await MetaCoin.at("0x1234...");//指定合约地址
//写入
instance.setCompleted(12)
//读取
instance.last_completed_migration()
//instance.sendTransaction({...}).then(function(result) {
//// 处理交易结果
//});
//instance.send(web3.utils.toWei(1, "ether")).then(function(result) {
//// 处理交易结果
//});

7.调试合约

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//暂时没debug成功
truffle debug
truffle debug <transaction hash>
truffle debug 0xeff68eb3a569cd0e48d5c6a28c8d9eecc2035dea748c7e3d7cfa4789a6628adb
truffle debug <transaction hash> --network <network>
//test测试成功
//truffle test --debug
//truffle console --network rinkeby 
//truffle test ./test/TestMigrations.js
truffle test ./test/TestMigrations.js --network rinkeby

8.外部脚本

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truffle console --network rinkeby 
//truffle exec <path/to/file.js>
truffle exec ./test/ExecMigrations.js

9.MetaMask

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// Is there is an injected web3 instance?
if (typeof web3 !== 'undefined') {
App.web3Provider = web3.currentProvider;
web3 = new Web3(web3.currentProvider);
} else {
// If no injected web3 instance is detected, fallback to Ganache.
App.web3Provider = new web3.providers.HttpProvider('http://127.0.0.1:7545');
web3 = new Web3(App.web3Provider);
}

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