@vechain.energy/hardhat-thor v0.3.2

hardhat VeChain Thor plugin

• hardhat-thor allows to deploy and interact with contracts through hardhat with VeChain

Installation

yarn add @vechain.energy/hardhat-thor

Add the following line to hardhat.config.js:

require('@vechain.energy/hardhat-thor')

Configuration

VeChain network is be configured in hardhat.config.js file:

module.exports = {
  solidity: "0.8.4",
  networks: {
    vechain: {
      url: 'https://testnet.veblocks.net',
      privateKey: "0x…",
      delegateUrl: 'https://sponsor-testnet.vechain.energy/by/#',
      blockGasLimit: 10000000
    }
  }
};

Each network configuration accepts

• url: used to connect to the desired network node
• privateKey: private key used for deployment and interaction with the blockchain
• accounts[]: (optional) list of private keys to use as signer for blockchain interaction
• delegateUrl: (optional) makes use of fee delegation and let another user pay for gas fees

Default values are:

{
  url: 'https://testnet.veblocks.net',
  privateKey: '0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80'
}

• Defaults to network vechain which can be changed:
  • in the command line with --network <network name>
  • with an environment variable NETWORK=<network name>

Usage

The plugin exposes hre.thor for interaction with the VeChain-Thor

Deployment

hre.thor works as hre.ethers replacement:

const Greeter = await hre.thor.getContractFactory("Greeter");
const greeter = await Greeter.deploy("Hello, VeChain!");

Interaction

const Greeter = await hre.thor.getContractFactory("Greeter");
const greeter = await Greeter.deploy("Hello, VeChain!");

await greeter.deployed();

console.log("Greeter deployed to:", greeter.address);

const deployedGreeter = await hre.thor.getContractAt('Greeter', greeter.address)
const greeting = await deployedGreeter.greet()
console.log("Greeter responded with:", greeting)