Would you happen to have an example of making the contract initializable/upgradeable in OpenZeppelin v3?
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Hi @PradhumnaPancholi ,
We need to use OpenZeppelin Contracts Ethereum Package, the contract names have UpgradeSafe suffix, and instead of constructors we need to use an initializer:
A great place to start is the Preset ERC20PresetMinterPauser in OpenZeppelin Contracts Ethereum Package:
pragma solidity ^0.6.0;
import "../access/AccessControl.sol";
import "../GSN/Context.sol";
import "../token/ERC20/ERC20.sol";
import "../token/ERC20/ERC20Burnable.sol";
import "../token/ERC20/ERC20Pausable.sol";
import "../Initializable.sol";
/**
* @dev {ERC20} token, including:
*
* - ability for holders to burn (destroy) their tokens
* - a minter role that allows for token minting (creation)
* - a pauser role that allows to stop all token transfers
*
* This contract uses {AccessControl} to lock permissioned functions using the
* different roles - head to its documentation for details.
*
* The account that deploys the contract will be granted the minter and pauser
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We can use OpenZeppelin Upgrades Plugins for Truffle and Buidler to deploy upgradeable contracts: https://docs.openzeppelin.com/upgrades-plugins/1.x/
If you get stuck I can put together a simple example.