How to create a mintable ERC20 token?

abcoathup · July 2, 2020, 5:07am

Welcome to the community.

ERC20 is only mintable if you add in the functionality, otherwise it is a fixed supply.

You can use the Preset ERC20 contract.
There are guides on how to deploy:

Otherwise you can look at the code to see how minting functionality is added:

OpenZeppelin/openzeppelin-contracts/blob/v3.1.0/contracts/presets/ERC20PresetMinterPauser.sol#L51



/**
 * @dev Creates `amount` new tokens for `to`.
 *
 * See {ERC20-_mint}.
 *
 * Requirements:
 *
 * - the caller must have the `MINTER_ROLE`.
 */
function mint(address to, uint256 amount) public virtual {
    require(hasRole(MINTER_ROLE, _msgSender()), "ERC20PresetMinterPauser: must have minter role to mint");
    _mint(to, amount);
}

/**
 * @dev Pauses all token transfers.
 *
 * See {ERC20Pausable} and {Pausable-_pause}.
 *
 * Requirements:

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How to create a mintable ERC20 token?

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