I was trying to deploy a contract on Sepolia network and I'm having issues so was hoping to pick your brain regarding this.
I read the Open Zeppelin article regarding the deployment and verification problems but nothing seems to fix the issue.
I'm able to deploy it and there are no errors or issues (tried Remix, Hardhat, Truffle). But when I try to verify it it shows an error - ABI doesn't match.
Optimization is on both for compilation and verification. Solidity version is also ^0.8.17 for both.
// SPDX-License-Identifier: UNLICENSE
pragma solidity ^0.8.17;
interface IBEP20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
library Address {
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
contract TESTCEO123 is Context, IBEP20, Ownable {
using Address for address payable;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcluded;
address[] private _excluded;
bool private swapping;
IRouter public router;
address public pair;
uint8 private constant _decimals = 9;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 420 *10**15 * 10**_decimals;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 public swapTokensAtAmount = 1e14 * 10**_decimals;
address public deadWallet = 0x000000000000000000000000000000000000dEaD;
address public marketingWallet = 0x542b253846354236733a71eCa67ff890c33B9fe9;
string private constant _name = "TESTCEO123";
string private constant _symbol = "TESTCEO123";
struct Taxes {
uint256 rfi;
uint256 marketing;
}
// tax 7% reflection, 3% mkt
Taxes public taxes = Taxes(7, 3);
struct TotFeesPaidStruct {
uint256 rfi;
uint256 marketing;
}
TotFeesPaidStruct public totFeesPaid;
struct valuesFromGetValues {
uint256 rAmount;
uint256 rTransferAmount;
uint256 rRfi;
uint256 rMarketing;
uint256 tTransferAmount;
uint256 tRfi;
uint256 tMarketing;
}
modifier lockTheSwap() {
swapping = true;
_;
swapping = false;
}
constructor(address routerAddress) {
IRouter _router = IRouter(routerAddress);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
excludeFromReward(pair);
excludeFromReward(deadWallet);
_rOwned[owner()] = _rTotal;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[marketingWallet] = true;
_isExcludedFromFee[deadWallet] = true;
emit Transfer(address(0), owner(), _tTotal);
}
//std BEP20:
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
//override BEP20:
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "BEP20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "BEP20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function reflectionFromToken(uint256 tAmount, bool deductTransferRfi)
public
view
returns (uint256)
{
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferRfi) {
valuesFromGetValues memory s = _getValues(tAmount, true);
return s.rAmount;
} else {
valuesFromGetValues memory s = _getValues(tAmount, true);
return s.rTransferAmount;
}
}
function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount / currentRate;
}
//@dev kept original RFI naming -> "reward" as in reflection
function excludeFromReward(address account) public onlyOwner {
require(!_isExcluded[account], "Account is already excluded");
if (_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner {
require(_isExcluded[account], "Account is not excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function isExcludedFromFee(address account) public view returns (bool) {
return _isExcludedFromFee[account];
}
function _reflectRfi(uint256 rRfi, uint256 tRfi) private {
_rTotal -= rRfi;
totFeesPaid.rfi += tRfi;
}
function _takeMarketing(uint256 rMarketing, uint256 tMarketing) private {
totFeesPaid.marketing += tMarketing;
if (_isExcluded[address(this)]) {
_tOwned[address(this)] += tMarketing;
}
_rOwned[address(this)] += rMarketing;
}
function _getValues(
uint256 tAmount,
bool takeFee
) private view returns (valuesFromGetValues memory to_return) {
to_return = _getTValues(tAmount, takeFee);
(
to_return.rAmount,
to_return.rTransferAmount,
to_return.rRfi,
to_return.rMarketing
) = _getRValues(to_return, tAmount, takeFee, _getRate());
return to_return;
}
function _getTValues(
uint256 tAmount,
bool takeFee
) private view returns (valuesFromGetValues memory s) {
if (!takeFee) {
s.tTransferAmount = tAmount;
return s;
}
s.tRfi = (tAmount * taxes.rfi) / 100;
s.tMarketing = (tAmount * taxes.marketing) / 100;
s.tTransferAmount =
tAmount -
s.tRfi -
s.tMarketing;
return s;
}
function _getRValues(
valuesFromGetValues memory s,
uint256 tAmount,
bool takeFee,
uint256 currentRate
)
private
pure
returns (
uint256 rAmount,
uint256 rTransferAmount,
uint256 rRfi,
uint256 rMarketing
)
{
rAmount = tAmount * currentRate;
if (!takeFee) {
return (rAmount, rAmount, 0, 0);
}
rRfi = s.tRfi * currentRate;
rMarketing = s.tMarketing * currentRate;
rTransferAmount =
rAmount -
rRfi -
rMarketing;
return (rAmount, rTransferAmount, rRfi, rMarketing);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply / tSupply;
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply)
return (_rTotal, _tTotal);
rSupply = rSupply - _rOwned[_excluded[i]];
tSupply = tSupply - _tOwned[_excluded[i]];
}
if (rSupply < _rTotal / _tTotal) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(
amount <= balanceOf(from),
"You are trying to transfer more than your balance"
);
bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount;
if (
!swapping &&
canSwap &&
from != pair &&
!_isExcludedFromFee[from] &&
!_isExcludedFromFee[to]
) {
swapAndLiquify();
}
bool takeFee = true;
if (swapping || _isExcludedFromFee[from] || _isExcludedFromFee[to]) takeFee = false;
_tokenTransfer(from, to, amount, takeFee);
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(
address sender,
address recipient,
uint256 tAmount,
bool takeFee
) private {
valuesFromGetValues memory s = _getValues(tAmount, takeFee);
if (_isExcluded[sender]) {
//from excluded
_tOwned[sender] = _tOwned[sender] - tAmount;
}
if (_isExcluded[recipient]) {
//to excluded
_tOwned[recipient] = _tOwned[recipient] + s.tTransferAmount;
}
_rOwned[sender] = _rOwned[sender] - s.rAmount;
_rOwned[recipient] = _rOwned[recipient] + s.rTransferAmount;
if (s.rRfi > 0 || s.tRfi > 0) _reflectRfi(s.rRfi, s.tRfi);
if (s.rMarketing > 0 || s.tMarketing > 0) _takeMarketing(s.rMarketing, s.tMarketing);
emit Transfer(sender, recipient, s.tTransferAmount);
}
function swapAndLiquify() private lockTheSwap {
uint256 contractBalance = balanceOf(address(this));
swapTokensForBNB(contractBalance);
uint256 deltaBalance = address(this).balance;
if (deltaBalance > 0) {
payable(marketingWallet).sendValue(deltaBalance);
}
}
function swapTokensForBNB(uint256 tokenAmount) private {
// generate the pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
// make the swap
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function bulkExcludeFee(address[] memory accounts, bool state) external onlyOwner {
for (uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromFee[accounts[i]] = state;
}
}
function updateMarketingWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
marketingWallet = newWallet;
}
function updateSwapTokensAtAmount(uint256 amount) external onlyOwner {
require(amount <= 1e15, "Cannot set swap threshold amount higher than 1% of tokens");
swapTokensAtAmount = amount * 10**_decimals;
}
//Use this in case BNB are sent to the contract by mistake
function rescueBNB(uint256 weiAmount) external onlyOwner {
require(address(this).balance >= weiAmount, "insufficient BNB balance");
payable(msg.sender).transfer(weiAmount);
}
//Use this in case BEP20 Tokens are sent to the contract by mistake
function rescueAnyBEP20Tokens(address _tokenAddr,address _to, uint256 _amount) public onlyOwner {
require(_tokenAddr != address(this), "Owner can't claim contract's balance of its own tokens");
IBEP20(_tokenAddr).transfer(_to, _amount);
}
receive() external payable {}
}