Truffle

​Truffle is a world class development environment, testing framework and asset pipeline for blockchains using the Ethereum Virtual Machine (EVM), aiming to make life as a developer easier.
This guide describes how to configure Truffle when you want to deploy your smart contracts on the IoTeX Network.
Let's assume that you already created a Truffle project and you want now use the truffle migrate command to deploy it on IoTeX. 
We will use https://babel-api.testnet.iotex.io for IoTeX Testnet. 
Check out the RPC Endpoint section for more info. 
1. Install the hdwallet-provider package
npm install @truffle/hdwallet-provider --save
2. Configure Truffle
You can configure Truffle accounts by using a mnemonic phrase or private keys.
2.1. Using Mnemonic phrase
Modify truffle-config.js as below:
const { MNEMONIC } = process.env;
const HDWalletProvider = require('@truffle/hdwallet-provider');
​
module.exports = {
  networks: {
    dev: {
      provider: () =>
        new HDWalletProvider({
          mnemonic: {
            phrase: MNEMONIC,
          },
          providerOrUrl: "https://babel-api.testnet.iotex.io",
          shareNonce: true
        }),
      network_id: 4690,    // IOTEX mainnet chain id 4689, testnet is 4690
      gas: 8500000,
      gasPrice: 1000000000000,
      skipDryRun: true
    }
  }
}
and deploy with:
MNEMONIC=`Your mnemonic` truffle migrate --reset --network dev
2.2. Using private keys
Modify truffle-config.js as below:
const HDWalletProvider = require('@truffle/hdwallet-provider');
​
const privateKeys = [
  "3f841bf589fdf83a521e55d51afddc34fa65351161eead24f064855fc29c9580",
  "9549f39decea7b7504e15572b2c6a72766df0281cea22bd1a3bc87166b1ca290",
];
​
module.exports = {
  networks: {
    dev: {
      provider: () => new HDWalletProvider(privateKeys, "https://babel-api.testnet.iotex.io", 0, 2),
      network_id: 4690,    // IOTEX mainnet chain id 4689, testnet is 4690
      gas: 8500000,
      gasPrice: 1000000000000,
      skipDryRun: true
    }
  }
}
Deploy
Finally, deploy your contracts with:
truffle migrate --reset --network dev

Remix

Hardhat

Last modified 8mo ago