ethers wei gwei gas price

const ethers = require('ethers')
const provider = new ethers.providers.JsonRpcProvider("https://polygon-rpc.com");
// const provider = new ethers.providers.JsonRpcProvider("https://psdolygon-rpc.com");

(async () => {
    // wei => gwei => hex (bignumber)
    // gwei => ethers.utils.hexlify => hex (bignumber)
    // wei => ethers.utils.parseUnits gwei => hex (bignumber)

    let estimatedGasFeesWei = 30.013769176
    console.log(`estimatedGasFeesWei: ${estimatedGasFeesWei}`);
    console.log(`estimatedGasFees: ${ethers.utils.parseUnits(estimatedGasFeesWei.toString(), "gwei")}`);

    const gas_price = ethers.utils.parseUnits(estimatedGasFeesWei.toString(), "gwei");
    console.log(`gas_price: ${gas_price}`);

    const gas_price0 = ethers.utils.hexlify(parseInt(ethers.utils.parseUnits(estimatedGasFeesWei.toString(), "gwei"), 10));
    console.log(`gas_price0: ${gas_price0}`);

    const overrides = {
        gasLimit: 88654,
        gasPrice: ethers.utils.parseUnits(estimatedGasFeesWei.toString(), "gwei"),
        nonce: 1
    };
    console.log(overrides);




    const currentGasPrice = await provider
        .getGasPrice()
        .catch((error) => {
            console.log(error.message);
            return ethers.utils.parseUnits("35", "gwei");
        });

    console.log(`currentGasPriceWei: ${ethers.utils.formatUnits(currentGasPrice.toString(), 9)}`);
    console.log(`currentGasPrice: ${currentGasPrice}`);

    const gas_price1 = ethers.utils.hexlify(parseInt(currentGasPrice, 10));
    console.log(`gas_price1: ${gas_price1}`);

    const overrides1 = {
        gasLimit: ethers.utils.hexlify(71362, 10),
        gasPrice: gas_price1,
        nonce: 1
    };

    console.log(overrides1);

})();