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ERC20

import "@thirdweb-dev/contracts/eip/interface/IERC20.sol";

ERC20 is the standard for representing fungible tokens; where each token is of equal valuable and interchangeable.

info

This extension is an interface and requires all of the functions to be implemented


Usage​

This is an example smart contract demonstrating how to inherit from this extension and override the functions to add (optional) custom functionality.

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

import "@thirdweb-dev/contracts/eip/interface/IERC20.sol";

contract Contract is IERC20 {
    constructor(
        string memory _name,
        string memory _symbol
    ) {}

    function totalSupply() external view returns (uint256) {
      // Your custom implementation here
    }

    function balanceOf(address who) external view returns (uint256) {
      // Your custom implementation here
    }

    function allowance(address owner, address spender) external view returns (uint256) {
      // Your custom implementation here
    }

    function transfer(address to, uint256 value) external returns (bool) {
      // Your custom implementation here
    }

    function approve(address spender, uint256 value) external returns (bool) {
      // Your custom implementation here
    }

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool); {
      // Your custom implementation here
    }
}

Click here to view an example implementation:

SDK Usage​

By adding this extension to a smart contract, the following features, hooks and functions are unlocked in the SDK:

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Unity

Base Contracts Implementing This Extension​