Deploy a Token Contract - ERC20

Deploying an ERC-20 token on Vanar chain is a straightforward process if you have some experience with Ethereum development. Below is a step-by-step tutorial on how to deploy an ERC-20 token using Hardhat, a popular Ethereum development framework. Make sure you have Node.js and npm installed before you begin. Below are the libraries and tools used for this tutorial:

  • OpenZeppelin - used for standard ERC20 base contract that is well tested and used by many production scale projects

  • Hardhat - is a tool and an environment that helps you compile, build, deploy and test you smart contracts along many other features.


  1. Node.js and npm installed on your machine.

  2. Basic knowledge of Solidity and Ethereum development.

Step 1: Set Up a New Hardhat Project

If you don't already have a Hardhat project, you can create one by following these steps:

  • Create a new directory for your project and navigate to it in the terminal:

mkdir my-erc20-token
cd my-erc20-token
  • Initialize a new Node.js project with npm:

npm init -y
  • Install Hardhat as a development dependency:

npm install --save-dev hardhat
  • Initialize Hardhat in your project:

npx hardhat

Follow the prompts to configure your project.

Step 2: Write the ERC-20 Token Contract

Now, you'll need to create a Solidity smart contract for your ERC-20 token. Create a new file called Token.sol in the contracts directory.

Here's a basic example of an ERC-20 contract:

// contracts/Token.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract TestToken is ERC20 {
    constructor(uint256 initialSupply) ERC20("Test Token", "MNA") {
        _mint(msg.sender, initialSupply);
  • Make sure to install OpenZeppelin's ERC-20 library if you haven't already:

npm install @openzeppelin/contracts

Step 3: Configure Hardhat

In your Hardhat project, configure the deployment by modifying the hardhat.config.js file. You can specify the network, account, and other settings for deployment.

Here's an example configuration:

// hardhat.config.js

module.exports = {
  networks: {
    // Add network configurations here (e.g., for local development, testnets, or mainnet).
      url: "RPC_VANAR_VANGAURD",
      accounts: ["PRIVATE_KEY_OF_THE_DEPLOYER"],
      chainId: 7860
  etherscan: {
    apiKey: "YOUR_ETHERSCAN_API_KEY", // Replace with your Etherscan API key
  vanar: {
    apiKey: "YOUR_VANAR_API_KEY", // Replace with your VANAR API key
  solidity: "0.8.0",

Step 4: Deploy the ERC-20 Token

Now, you can deploy your ERC-20 token using Hardhat. Create a deployment script in the scripts directory (e.g., deployERC20.js) to deploy the contract:

mkdir my-erc20-token
// scripts/deployERC20.js
const { ethers, upgrades } = require("hardhat");

async function main() {

  const maxSupply = 1000000 * (10 ** 18); // To mint 1,000,000 tokens

  const [deployer] = await ethers.getSigners();

  console.log("Deploying TestToken from account:", deployer.address);

  const TestToken = await ethers.getContractFactory("TestToken");
  const testToken = await TestToken.deploy(maxSupply); // Initial supply

  console.log("TestToken deployed to:", testToken.address);

  await testToken.deployed();

  .then(() => process.exit(0))
  .catch((error) => {

Step 5: Deploy the Token

Run the deployment script using Hardhat:

npx hardhat run scripts/deployERC20.js --network <network_name>

Replace <network_name> with the configured Vanar network you want to deploy the token on.

That's it! You've deployed an ERC-20 token using Hardhat on Vanar. Make sure to test your token and handle any additional functionalities such as transfers, approvals, and more if needed.

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