# Create upgradeable ERC20

**URL:** <https://forum.openzeppelin.com/t/create-upgradeable-erc20/4782>\
**Category:** Upgrades\
**Tags:** erc20\
**Created:** [November 26, 2020, 12:18am UTC](https://forum.openzeppelin.com/t/create-upgradeable-erc20/4782 "2020-11-26T00:18:54Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![abcoathup](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/abcoathup/32/415_2.png) [@abcoathup](https://forum.openzeppelin.com/u/abcoathup)\
**Post date:** [November 26, 2020, 12:48am UTC](https://forum.openzeppelin.com/t/create-upgradeable-erc20/4782/2 "2020-11-26T00:48:52Z")

</div>

Hi @Nadim,

Welcome to the community 👋

I recommend using OpenZeppelin Upgrades Plugins for Truffle and Hardhat if you want to deploy and test upgradeable contracts: [https://docs.openzeppelin.com/upgrades-plugins/1.x/](https://docs.openzeppelin.com/upgrades-plugins/1.x/)

There isn’t an Upgrades Plugin for Remix, so you would need to deploy the implementation contract, followed by the proxy (and optionally a ProxyAdmin) yourself. The Upgrades Plugins perform upgrade safety checks and make it easy to write high level tests for upgradeable contracts.

I suggest looking at the following Step by Step Tutorials:

- [OpenZeppelin Upgrades: Step by Step Tutorial for Truffle](https://forum.openzeppelin.com/t/openzeppelin-upgrades-step-by-step-tutorial-for-truffle/3579)
- [OpenZeppelin Upgrades: Step by Step Tutorial for Hardhat](https://forum.openzeppelin.com/t/openzeppelin-upgrades-step-by-step-tutorial-for-hardhat/3580)

I created a very simple example ERC20 contract and deployed it to the inbuilt Truffle development network (using the setup from the Step by Step tutorial for Truffle).

## MyToken.sol

This example token has a fixed supply that is minted to the deployer of the contract.

```auto
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/Initializable.sol";

contract MyToken is Initializable, ERC20Upgradeable {
    function initialize(string memory name, string memory symbol, uint256 initialSupply) public virtual initializer {
        __ERC20_init(name, symbol);
        _mint(_msgSender(), initialSupply);
    }
}

```

## 2\_deploy\_token.js

The token is initialized with the name, symbol and the initial supply.

```auto
// migrations/2_deploy_token.js
const MyToken = artifacts.require('MyToken');
 
const { deployProxy } = require('@openzeppelin/truffle-upgrades');
 
module.exports = async function (deployer) {
  await deployProxy(MyToken, ['My Token', 'TKN', '100000000000000000000000'], { deployer, initializer: 'initialize' });
};

```

## Truffle console

I deployed the token using `migrate` and then interacted with the upgradeable contract.

```auto
$ npx truffle develop
Truffle Develop started at http://127.0.0.1:9545/
...

truffle(develop)> migrate

Compiling your contracts...
===========================
> Compiling ./contracts/Migrations.sol
> Compiling ./contracts/MyToken.sol
...

Starting migrations...
======================
> Network name: 'develop'
> Network id: 5777
> Block gas limit: 6721975 (0x6691b7)

1_initial_migration.js
======================
...

2_deploy_token.js
=================

   Deploying 'MyToken'
   -------------------
   > transaction hash: 0x508efaac2ff912035645518ee02aee25d11403728d8acf37aca2d7c2d635e7bb
   > Blocks: 0 Seconds: 0
   > contract address: 0xDEE9411430c7Dd9b67fC6DA723DE729AdAB50AD7
...

   Deploying 'ProxyAdmin'
   ----------------------
   > transaction hash: 0xd254a960020144c71ab1e28164cd6d91d53cea238f4ca109fb05f0594fe6e5ba
   > Blocks: 0 Seconds: 0
   > contract address: 0xc105BA878b6dE2472D441F0f2C4709fA622208f3
...

   Deploying 'AdminUpgradeabilityProxy'
   ------------------------------------
   > transaction hash: 0x4367f909eb988d940a1df1dc8788b76bf7b2cb60bc859b56d7519a453ecec98d
   > Blocks: 0 Seconds: 0
   > contract address: 0xB715B0DAF6097Be133A1E09AF21a84719582E720
...

truffle(develop)> token = await MyToken.deployed()
undefined
truffle(develop)> token.address
'0xB715B0DAF6097Be133A1E09AF21a84719582E720'
truffle(develop)> token.name()
'My Token'
truffle(develop)> token.symbol()
'TKN'
truffle(develop)> (await token.totalSupply()).toString()
'100000000000000000000000'
truffle(develop)> (await token.balanceOf(accounts[0])).toString()
'100000000000000000000000'

```

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_[View the full topic](https://forum.openzeppelin.com/t/create-upgradeable-erc20/4782)._