Smart Contracts Programming Tutorials, Guides & Best Practices

Creating your own ERC-20 token is one of the most common tasks in Ethereum smart contract development. The ERC-20 standard defines a set of rules that all Ethereum tokens must follow, ensuring compatibility with existing applications like wallets, exchanges, and more. OpenZeppelin provides a robust, secure, and widely-used library of smart contract components that simplify the process of creating an ERC-20 token. In this tutorial, we will guide you through the steps to create and deploy your own ERC-20 token using OpenZeppelin.

Before you begin, make sure you have the following:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract MessageStore {
    string public message;

    function setMessage(string memory newMessage) public {
        message = newMessage;
    }

    function getMessage() public view returns (string memory) {
        return message;
    }
}

Explanation:

Solidity is the programming language used to write smart contracts on Ethereum. Let’s create a simple smart contract that stores a number and allows users to update it.

Example Contract: