git clone https://github.com/earthchie/DeFi-SDK ./

DopBot.js

const ethers = require('ethers');
const DeFiSDK = require('./defi-sdk/defi-sdk-node');
const DeFi = new DeFiSDK('https://bsc-dataseed.binance.org/', 'your private key or mnemonic keys');

DeFi.loadContracts().then(async () => {

    console.log('Ready...');

    const offset = 5; // in percent
    let DOP = {
        balance: 0,
        now: 0,
        highest: -1,
        lowest: 999999
    };
    let TWIN = {
        balance: 0,
        now: 0,
        highest: -1,
        lowest: 999999
    }

    let log = '';
    let dop_is_transacting = false;
    let twin_is_transacting = false;
    DeFi.provider.on('block', async n => {
        const busd_balance = await DeFi.Tokens.BUSD.balance();
        DOP.balance = await DeFi.Tokens.DOP.balance();
        TWIN.balance = await DeFi.Tokens.TWIN.balance();
        DOP.now = await DeFi.Twindex.DOP_BUSD.price();
        TWIN.now = await DeFi.Twindex.TWIN_BUSD.price();
        

        if(DOP.now > DOP.highest){
            DOP.highest = DOP.now;
        }
        if(DOP.now < DOP.lowest){
            DOP.lowest = DOP.now;
        }
        if(TWIN.now > TWIN.highest){
            TWIN.highest = TWIN.now;
        }
        if(TWIN.now < TWIN.lowest){
            TWIN.lowest = TWIN.now;
        }

        let new_log = `
    DOP = ${DOP.now.toFixed(4)} (${DOP.highest.toFixed(4)}/${DOP.lowest.toFixed(4)})
    TWIN = ${TWIN.now.toFixed(4)} (${TWIN.highest.toFixed(4)}/${TWIN.lowest.toFixed(4)})
        `;
        if(new_log != log){
            log = new_log;
            console.log(`\nBlock`, n, `| Balance: ${busd_balance.toFixed(4)} BUSD | ${DOP.balance.toFixed(4)} DOP | ${TWIN.balance.toFixed(4)} TWIN`, log);
        }else{
            process.stdout.write('.');
        }
        
        if(DOP.balance > 0 && DOP.now < (DOP.highest-DOP.highest*offset/100) && !dop_is_transacting){
            dop_is_transacting = true;
            let r = await sellAll(DeFi.Tokens.DOP, DeFi.Twindex.DOP_BUSD);
            console.log('Sell DOP @ ', DOP.now, r);
            DOP.highest = DOP.now;
            DOP.lowest = DOP.now;
            
            setTimeout(function(){
                dop_is_transacting = false;
            }, 30000)
        }
        if(busd_balance > 0 && DOP.now > (DOP.lowest+DOP.lowest*offset/100) && !dop_is_transacting){
            dop_is_transacting = true;

            let r = await buyAll(DeFi.Tokens.DOP, DeFi.Twindex.DOP_BUSD);
            console.log('Buy DOP @ ', DOP.now, r);

            DOP.lowest = DOP.now;
            DOP.highest = DOP.now;
            
            setTimeout(function(){
                dop_is_transacting = false;
            }, 30000)
        }

        if(TWIN.balance > 0 && TWIN.now < (TWIN.highest-TWIN.highest*offset/100) && !twin_is_transacting){
            twin_is_transacting = true;

            let r = await sellAll(DeFi.Tokens.TWIN, DeFi.Twindex.TWIN_BUSD);
            console.log('Sell TWIN @ ', TWIN.now, r);
            TWIN.highest = TWIN.now;
            TWIN.lowest = TWIN.now;

            setTimeout(function(){
                twin_is_transacting = false;
            }, 30000)
        }
        if(busd_balance > 0 && TWIN.now > (TWIN.lowest+TWIN.lowest*offset/100) && !twin_is_transacting){
            twin_is_transacting = true;

            let r = await buyAll(DeFi.Tokens.TWIN, DeFi.Twindex.TWIN_BUSD);
            console.log('Buy TWIN @ ', TWIN.now, r);
            TWIN.highest = TWIN.now;
            TWIN.lowest = TWIN.now;

            setTimeout(function(){
                twin_is_transacting = false;
            }, 30000)
        }

    });

});

async function sellAll(Token, Pair){
    const approve_amount = ethers.utils.parseUnits('1000000', 18).toString();
    try{
        await Token.approve(DeFi.contractAddresses.AMM.Twindex.Router, approve_amount);
        return await Pair.sell();
    }catch(e){
        console.log('Sell failed. Retrying...', e);
        return await sellAll(Token, Pair);
    }
}

async function buyAll(Token, Pair){
    const approve_amount = ethers.utils.parseUnits('1000000', 18).toString();
    try{
        await Token.approve(DeFi.contractAddresses.AMM.Twindex.Router, approve_amount);
        return await Pair.buy();
    }catch(e){
        console.log('Buy failed. Retrying...', e);
        return await buyAll(Token, Pair);
    }
}

$ git clone https://github.com/earthchie/DeFi-SDK ./bot
$ cd ./bot
$ wget https://gist.githubusercontent.com/earthchie/0aaeb599fa025dfafe187ba1d09211a4/raw/9d6a19819b3171a99e769405220bf7ee74890638/DopBot.js

แล้วใส่ private key/mnemonic key ซะ จากนั้น

$ npm i
$ node DopBot.js