PancakeSwap trading bot Problem :Unhandled 'error' event

[jklepatch]

PancakeSwap trading bot Problem :Unhandled 'error' event

[ozgurk78]

and my code:

console.log('provider');
//console.log(provider);
const wallet = ethers.Wallet.fromMnemonic(mnemonic);
console.log('wallet');
//console.log(wallet);
const account = wallet.connect(provider);
console.log('account');
//console.log(account);
const factory = new ethers.Contract(
addresses.factory,
['event PairCreated(address indexed token0, address indexed token1, address pair, uint)'],
account
);
console.log('factory');
//console.log(factory);
const router = new ethers.Contract(
addresses.router,
[
'function getAmountsOut(uint amountIn, address[] memory path) public view returns (uint[] memory amounts)',
'function swapExactTokensForTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts)'
],
account
);
console.log('router');
//console.log(router);
const wbnb = new ethers.Contract(
addresses.WBNB,
[
'function approve(address spender, uint amount) public returns(bool)',
],
account
);
console.log('wbnb');
//console.log(wbnb);
const init = async () => {
/*const tx = await wbnb.approve(
router.address,
'replace by amount covering several trades'
);
const receipt = await tx.wait(); */

console.log('Transaction receipt11');
//console.log(receipt);
}

console.log('PairCreated');

factory.on('error', function(err){
console.log('onerror');
console.log(err);
});

factory.on('PairCreated', async (token0, token1, pairAddress) => {
console.log(`
New pair detected

token0: ${token0}
token1: ${token1}
pairAddress: ${pairAddress}
`);

//The quote currency needs to be WBNB (we will pay with WBNB)
let tokenIn, tokenOut;
if(token0 === addresses.WBNB) {
tokenIn = token0;
tokenOut = token1;
}

if(token1 == addresses.WBNB) {
tokenIn = token1;
tokenOut = token0;
}

//The quote currency is not WBNB
if(typeof tokenIn === 'undefined') {
return;
}

//We buy for 0.1 BNB of the new token
//ethers was originally created for Ethereum, both also work for BSC
//'ether' === 'bnb' on BSC
const amountIn = ethers.utils.parseUnits('0.01', 'ether');
const amounts = await router.getAmountsOut(amountIn, [tokenIn, tokenOut]);
//Our execution price will be a bit different, we need some flexbility
const amountOutMin = amounts[1].sub(amounts[1].div(10));
console.log(Buying new token ================= tokenIn: ${amountIn.toString()} ${tokenIn} (WBNB) tokenOut: ${amounOutMin.toString()} ${tokenOut});
const tx = await router.swapExactTokensForTokens(
amountIn,
amountOutMin,
[tokenIn, tokenOut],
addresses.recipient,
Date.now() + 1000 * 60 * 10 //10 minutes
);
const receipt = await tx.wait();
console.log('Transaction receipt');
console.log(receipt);
});

init();

[theterrapunk]

Maybe try putting the provider starting with "wss" instead of "https:" - that worked for me. Make sure to put it in quotes too.