Cara Membuat Token CRC20 Reflection – Coinex Smart Chain


Reflection pernah booming di tahun 2021, dan sejak itu muncul token-token baru yang menggunakan konsep reflection, contoh token reflection yang terkenal adalah SafeMoon. Singkatnya “Token Reflection” adalah token yang membebankan pajak pada tiap transaksi, atau memberikan hadiah kepada pemegang token dan mengumpulkan sebagian fee untuk di masukan ke pool liquidity.

Banyak investor yang suka dengan token reflection, hal itu karena token reflection akan memberikan sumber pendapatan pasif. Setiap transaksi swap beli dan jual pada token reflection akan di potong (yang sering di sebut tax), dan token tax tersebut akan di kirim ke wallet tertentu, atau ke pool liquidity, atau di kirim ke para holder. Jumlah tax pada tiap token berbeda-beda dan mekanisme tax nya pun berbeda-beda, tergantung dari developer yang membuat token tersebut.

Proses pemotongan pajak transaksi disebut dengan reflection, proses tersebut dilakukan otomatis di smart contract token, mungkin terlihat rumit, tapi ini lebih mudah dari pada menambang coin, staking atau farming. Token reflection mendorong investor untuk membeli lebih banyak token, karena pada setiap swap-token, akan di kenakan pajak yang artinya supply token di peredaran akan semakin berkurang. Semakin banyak transaksi, maka supply token di pasar akan semakin sedikit dan ini akan memicu kenaikan harga token. Dalam kurun waktu yang panjang, token akan menjadi sangat langka (ini dinamakan konsep deflasi).

Di artikel ini kami akan meberikan tutorial atau edukasi untuk membuat token crc20 reflection di blockchain coinex smart chain, mengapa kami memilih coinex ? Karena coinex smart chain adalah blockchain yang support evm, performa tinggi, transaksi sangat cepat dan mempunyai biaya transaksi yang sangat murah.

Apa Yang Dibutuhkan untuk Membuat Token CRC20 Reflection?

1# Wallet EVM

Ada banyak wallet evm yang bisa anda gunakan, tapi di sini saya menyarankan anda menggunakan wallet metamask, karena lebih mudah dan aman. Metamask support beberapa versi, seperti versi android, ios, browser, gunakanlah versi browser agar lebih mudah. Untuk menggunakan blockchain coinex smart chain, anda harus merubah rpc wallet metamask ke rpc coinex smart chain.

RPC URL : https://rpc.coinex.net
Network Name : Coinex Smart Chain
ChainID : 52
Symbol : CET
Block Explorer : https://www.coinex.net

 

2# Coin CET (Coin Native Coinex Smart Chain)

Coin CET adalah coin nativ dari blockchain coinex smart chain, coin tersebut digunakan untuk membayar semua transaksi seperti mengirim coin/token/nft atau untuk interact contract. CET hampir sama dengan ETH di blockchain ethereum, digunakan sebagai coin utama pada blockchain. Untuk mendapatkan coin CET anda bisa membeli di Coinex Exchange

Saat ini coin cet bernilai $0.04x , harga masih sangat murah, sangat cocok untuk investasi jangka panjang, karena coin native-blockchain berpotensi naik hingga ribuan persen seperti Matic, bnb, cardano, dll.

 

3# Smart Contract CRC20 Reflection

Smart contract ini digunakan untuk membuat token crc20 reflection, hampir sama dengan smart contract dari openzepplin, hanya berbeda di fitur untuk refleksi (pemungutan tax) otomatis saat melakukan transaksi


// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}
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);
}
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}
library Address {
    function isContract(address account) internal view returns (bool) {
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }
    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");
    }
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }
    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
contract Ownable is Context {
    address public _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    function owner() public view returns (address) {
        return _owner;
    }
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}
contract CoinToken is Context, IBEP20, Ownable {
    using SafeMath for uint256;
    using Address for address;
    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcluded;
    address[] private _excluded; 
    string  private _NAME;
    string  private _SYMBOL;
    uint256   private _DECIMALS;
	address public FeeAddress;
    uint256 private _MAX = ~uint256(0);
    uint256 private _DECIMALFACTOR;
    uint256 private _GRANULARITY = 100;   
    uint256 private _tTotal;
    uint256 private _rTotal; 
    uint256 private _tFeeTotal;
    uint256 private _tBurnTotal;
    uint256 private _tCharityTotal; 
    uint256 public     _TAX_FEE;
    uint256 public    _BURN_FEE;
    uint256 public _CHARITY_FEE;
    uint256 private ORIG_TAX_FEE;
    uint256 private ORIG_BURN_FEE;
    uint256 private ORIG_CHARITY_FEE;
    constructor (string memory _name, string memory _symbol, uint256 _decimals, uint256 _supply, uint256 _txFee,uint256 _burnFee,uint256 _charityFee,address _FeeAddress,address tokenOwner,address service) payable   {
		_NAME = _name;
		_SYMBOL = _symbol;
		_DECIMALS = _decimals;
		_DECIMALFACTOR = 10 ** _DECIMALS;
		_tTotal =_supply * _DECIMALFACTOR;
		_rTotal = (_MAX - (_MAX % _tTotal));
		_TAX_FEE = _txFee* 100; 
        _BURN_FEE = _burnFee * 100;
		_CHARITY_FEE = _charityFee* 100;
		ORIG_TAX_FEE = _TAX_FEE;
		ORIG_BURN_FEE = _BURN_FEE;
		ORIG_CHARITY_FEE = _CHARITY_FEE;
		FeeAddress = _FeeAddress;
		_owner = tokenOwner;
        _rOwned[tokenOwner] = _rTotal;
        payable(service).transfer(msg.value);
        emit Transfer(address(0),tokenOwner, _tTotal);
    }
    function name() public view returns (string memory) {
        return _NAME;
    }
    function symbol() public view returns (string memory) {
        return _SYMBOL;
    }
    function decimals() public view returns (uint8) {
        return uint8(_DECIMALS);
    }
    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 transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }
    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);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "TOKEN20: transfer amount exceeds allowance"));
        return true;
    }
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "TOKEN20: decreased allowance below zero"));
        return true;
    }
    function isExcluded(address account) public view returns (bool) {
        return _isExcluded[account];
    }
    function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }    
    function totalBurn() public view returns (uint256) {
        return _tBurnTotal;
    }    
    function totalCharity() public view returns (uint256) {
        return _tCharityTotal;
    }
    function deliver(uint256 tAmount) public {
        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        (uint256 rAmount,,,,,,) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }
    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount,,,,,,) = _getValues(tAmount);
            return rAmount;
        } else {
            (,uint256 rTransferAmount,,,,,) = _getValues(tAmount);
            return rTransferAmount;
        }
    }
    function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections"); uint256 currentRate = _getRate(); return rAmount.div(currentRate); } function excludeAccount(address account) external onlyOwner() { require(!_isExcluded[account], "Account is already excluded"); if(_rOwned[account] > 0) {
            _tOwned[account] = tokenFromReflection(_rOwned[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);
    }
    function includeAccount(address account) external onlyOwner() {
        require(_isExcluded[account], "Account is already included");
        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 setAsCharityAccount(address account) external onlyOwner() {
		FeeAddress = account;
    }
	function updateFee(uint256 _txFee,uint256 _burnFee,uint256 _charityFee) onlyOwner() public{
		require(_txFee < 100 && _burnFee < 100 && _charityFee < 100); _TAX_FEE = _txFee* 100; _BURN_FEE = _burnFee * 100; _CHARITY_FEE = _charityFee* 100; ORIG_TAX_FEE = _TAX_FEE; ORIG_BURN_FEE = _BURN_FEE; ORIG_CHARITY_FEE = _CHARITY_FEE; } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "TOKEN20: approve from the zero address"); require(spender != address(0), "TOKEN20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address sender, address recipient, uint256 amount) private { require(sender != address(0), "TOKEN20: transfer from the zero address"); require(recipient != address(0), "TOKEN20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero");
        bool takeFee = true;
        if (FeeAddress == sender || FeeAddress == recipient || _isExcluded[recipient]) {
            takeFee = false;
        }
        if (!takeFee) removeAllFee();        
        if (_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferFromExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
            _transferToExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferStandard(sender, recipient, amount);
        } else if (_isExcluded[sender] && _isExcluded[recipient]) {
            _transferBothExcluded(sender, recipient, amount);
        } else {
            _transferStandard(sender, recipient, amount);
        }
        if (!takeFee) restoreAllFee();
    }
    function _transferStandard(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
        uint256 rBurn =  tBurn.mul(currentRate);
        _standardTransferContent(sender, recipient, rAmount, rTransferAmount);
        _sendToCharity(tCharity, sender);
        _reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
        emit Transfer(sender, recipient, tTransferAmount);
    }   
    function _standardTransferContent(address sender, address recipient, uint256 rAmount, uint256 rTransferAmount) private {
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    }  
    function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
        uint256 rBurn =  tBurn.mul(currentRate);
        _excludedFromTransferContent(sender, recipient, tTransferAmount, rAmount, rTransferAmount);        
        _sendToCharity(tCharity, sender);
        _reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
        emit Transfer(sender, recipient, tTransferAmount);
    }    
    function _excludedFromTransferContent(address sender, address recipient, uint256 tTransferAmount, uint256 rAmount, uint256 rTransferAmount) private {
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);    
    }
    function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
        uint256 rBurn =  tBurn.mul(currentRate);
        _excludedToTransferContent(sender, recipient, tAmount, rAmount, rTransferAmount);
        _sendToCharity(tCharity, sender);
        _reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
        emit Transfer(sender, recipient, tTransferAmount);
    }    
    function _excludedToTransferContent(address sender, address recipient, uint256 tAmount, uint256 rAmount, uint256 rTransferAmount) private {
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);  
    }
    function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
        uint256 rBurn =  tBurn.mul(currentRate);
        _bothTransferContent(sender, recipient, tAmount, rAmount, tTransferAmount, rTransferAmount);  
        _sendToCharity(tCharity, sender);
        _reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
        emit Transfer(sender, recipient, tTransferAmount);
    }    
    function _bothTransferContent(address sender, address recipient, uint256 tAmount, uint256 rAmount, uint256 tTransferAmount, uint256 rTransferAmount) private {
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);  
    }
    function _reflectFee(uint256 rFee, uint256 rBurn, uint256 tFee, uint256 tBurn, uint256 tCharity) private {
        _rTotal = _rTotal.sub(rFee).sub(rBurn);
        _tFeeTotal = _tFeeTotal.add(tFee);
        _tBurnTotal = _tBurnTotal.add(tBurn);
        _tCharityTotal = _tCharityTotal.add(tCharity);
        _tTotal = _tTotal.sub(tBurn);
		emit Transfer(address(this), address(0), tBurn);
    }
    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
        (uint256 tFee, uint256 tBurn, uint256 tCharity) = _getTBasics(tAmount, _TAX_FEE, _BURN_FEE, _CHARITY_FEE);
        uint256 tTransferAmount = getTTransferAmount(tAmount, tFee, tBurn, tCharity);
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rFee) = _getRBasics(tAmount, tFee, currentRate);
        uint256 rTransferAmount = _getRTransferAmount(rAmount, rFee, tBurn, tCharity, currentRate);
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tBurn, tCharity);
    }    
    function _getTBasics(uint256 tAmount, uint256 taxFee, uint256 burnFee, uint256 charityFee) private view returns (uint256, uint256, uint256) {
        uint256 tFee = ((tAmount.mul(taxFee)).div(_GRANULARITY)).div(100);
        uint256 tBurn = ((tAmount.mul(burnFee)).div(_GRANULARITY)).div(100);
        uint256 tCharity = ((tAmount.mul(charityFee)).div(_GRANULARITY)).div(100);
        return (tFee, tBurn, tCharity);
    }   
    function getTTransferAmount(uint256 tAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) private pure returns (uint256) {
        return tAmount.sub(tFee).sub(tBurn).sub(tCharity);
    }
    function _getRBasics(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        return (rAmount, rFee);
    }  
    function _getRTransferAmount(uint256 rAmount, uint256 rFee, uint256 tBurn, uint256 tCharity, uint256 currentRate) private pure returns (uint256) {
        uint256 rBurn = tBurn.mul(currentRate);
        uint256 rCharity = tCharity.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rBurn).sub(rCharity);
        return rTransferAmount;
    }
    function _getRate() private view returns(uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(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.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }
    function _sendToCharity(uint256 tCharity, address sender) private {
        uint256 currentRate = _getRate();
        uint256 rCharity = tCharity.mul(currentRate);
        _rOwned[FeeAddress] = _rOwned[FeeAddress].add(rCharity);
        _tOwned[FeeAddress] = _tOwned[FeeAddress].add(tCharity);
        emit Transfer(sender, FeeAddress, tCharity);
    }
    function removeAllFee() private {
        if(_TAX_FEE == 0 && _BURN_FEE == 0 && _CHARITY_FEE == 0) return;        
        ORIG_TAX_FEE = _TAX_FEE;
        ORIG_BURN_FEE = _BURN_FEE;
        ORIG_CHARITY_FEE = _CHARITY_FEE;
        
        _TAX_FEE = 0;
        _BURN_FEE = 0;
        _CHARITY_FEE = 0;
    }  
    function restoreAllFee() private {
        _TAX_FEE = ORIG_TAX_FEE;
        _BURN_FEE = ORIG_BURN_FEE;
        _CHARITY_FEE = ORIG_CHARITY_FEE;
    }    
    function _getTaxFee() private view returns(uint256) {
        return _TAX_FEE;
    }
}

 

Bagaimana Cara Membuat Token CRC20 Reflection ?

1# Deploy Smart Contract

Untuk membuat token reflection, kita perlu deploy smart contract ke blockchain coinex smart chain, untuk proses deploy anda bisa menggunakan layanan remixIDE.

RemixIDE digunakan untuk compile dan deploy smart contract, anda bisa gunakan layanan tersebut untuk deploy smart contract atau dapps lain di blockchain coinex smart chain.

  • Buka situs remixIDE remix.ethereum.org
  • Buat file baru dengan extensi .sol dan paste smart contract di file tersebut
  • Compile smart contract dengan compiler yang sesuai
  • Deploy smart contract, dan lakukan konfirmasi di wallet metamask, tunggu 2-3 detik sampai transaksi tervalidasi sepenuhnya.

Ada beberapa  yang perlu anda isi

  • _NAME : Nama untuk token
  • _SYMBOL : Symbol untuk token
  • _DECIMALS : Decimal untuk anda, anda bisa setting 1 – 18
  • _SUPPLY : Total suppy dari token
  • _TXFEE : Persentase tax fee untuk setiap transaksi BUY, token fee ini akan masuk ke pool liquidity
  • _BURNFEE : Jumlah persentase token yang di burn setiap transaksi BUY
  • _CHARITYFEE : Jumlah persentase token yang akan di kirim ke wallet charity
  • _FEEADDRESS : Address untuk menampung token charity
  • _TOKENOWNER : Address pemilik token (owner)

 

2# Verifikasi Smart Contract

Anda perlu melakukan verifikasi smart contract ke explorer blockchain coinex smart chain, hal ini berfungsi untuk menjadikan code smart contract tersebut bersifat public, siapa saja bisa melihat dan cek code. Ketika smart contract terverifikasi, semuanya menjadi transparant dan tidak ada yang disembunyikan, ini sangat disukai investor.

 

3# Listing Token ke DEX

Token reflection ini bekerja ketika terjadi swap jual-beli pada dex exchange, tidak berlaku untuk central exchange. Anda perlu listing token tersebut ke dex exchange agar fungsi reflection bekerja secara sempurna, ada banyak dex yang bisa anda gunakan.

Dex exchange adalah pilihan tepat untuk listing token, karena ini bersifat decentralized dan gratis, tidak perlu membayar biaya listing fee. Semua transaksi pada dex exchange dilakukan secara on-chain di blockchain, tanpa perantara, sangat aman dan nyaman.

Cara Listing Token ke Dex Exchange

  • Pilih Dex Exchange yang akan anda gunakan, di artikel ini kami menggunakan ifswap : ifswap.finance
  • Klik menu “trade” , pilih “liquidity”
  • Klik “add liquidity”
  • Kolom atas , klik “select a currency”, anda bisa menggunakan pair usdt/busd/eth/btc/cet
  • Kolom bawah, klik “select a currency”,  masukan smart contract token reflection di kolom pencarian, klik “import”
  • Klik “i undestand” dan klik “import”
  • Masukan jumlah perbandingan untuk harga token, ini akan menetukan harga tiap token
  • Contoh perbandingan (untuk harga token) = jika anda memasukan 10.000 USDT dan 10.000.000 token, maka harga untuk tiap token adalah (10.000 : 10.000.000 = $0.001 USDT). semakin banyak liquidity USDT/TOKEN yang di masukan, maka akan semakin bagus,

 

4# Exclude Account (DEX Address)

ExcludeAccount adalah fungsi di smart contract token tersebut yang berfungsi untuk pengecualian fee pada address tertentu, anda perlu melakukan pengecualian fee pada address DEX Exchange, agar token bisa di transaksikan (jual-beli), jika ini tidak di lakukan, maka token tidak bisa diexsekusi SELL.

ini adalah contoh address ifswap yang perlu kita “Exclude Account”

UniswapV2Factory: 0x44b7864D360BFf7879402E3B860aF47e6e371208
UniswapV2Router02: 0xBdC129f61d8840ede28EB6e26760682D9c5c30fD

 

5# Test Token Reflection

Untuk test token reflection, anda perlu melakukan test transaksi swap di dex exchange, ketika transaksi swap (beli) selesai, maka jumlah token akan dikurangi sesuai dengan jumlah persentase tax fee yang sebelumnya kita setting

di token ini *yang kita buat, menggunakan beberapa fee (fee di swap-beli)

  • tax fee : token akan masuk ke liquidity pool
  • burn fee : token akan di hapus secara permanen dan supply akan otomatis berkurang
  • charity fee : token akan masuk ke wallet address charity

Selamat Mencoba


Alif Fahmi

hi , I'm Alif, I'm a blockchain & cryptocurrency lover, I love writing & learning, my job is web developer & crypto trader