Unable to connect to Testnet Sepolia

Question

Command:

npx hardhat --network sepolia run scripts/deploy.js

Getting error messages:

* Invalid account: #0 for network: sepolia - private key too long, expected 32 bytes
  * Invalid value undefined for HardhatConfig.networks.etherscan.url - Expected a value of type string.
  * Invalid account: #0 for network: etherscan - private key too short, expected 32 bytes

Hardhat.cofig:

// import config before anything else import {config as dotEnvConfig} from dotEnvConfig();
/**
* @type import('hardhat/config').HardhatUserConfig
*/

require ('dotenv').config();
require("@nomicfoundation/hardhat-toolbox");
require("hardhat-deploy");


{
}

const {ALCHEMY_API_KEY,ETHERSCAN_API_KEY,PRIVATE_KEY} = process.env;
const ERC1155 = require("@openzeppelin/contracts/build/contracts/ERC1155.json");



module.exports =  {
    defaultNetwork: "sepolia",
    networks: {
      hardhat: {
      },
      sepolia: {
        url: "process.env.ALCHEMY_API_KEY",
        accounts: [`0x${ALCHEMY_API_KEY}`],
    },
    etherscan: {
        apiKey: "process.env.ETHERSCAN_API_KEY",
        accounts: [`0x${ETHERSCAN_API_KEY}`],
      },
    },
    solidity: {
      version: "0.8.9",
      settings: {
        optimizer: {
          enabled: true,
          runs: 200
        }
      }
    },
    paths: {
      sources: "./contracts",
      tests: "./test",
      cache: "./cache",
      artifacts: "./artifacts"
    },
    mocha: {
      timeout: 40000
    }
  }

Answer 1

You need to pass the url and PK in a simple way, change your code to this:

Pass the URL, not only the API key.

       sepolia: {
            url: process.env.ALCHEMY_API_KEY, // Pass the full URL here
            accounts: [PRIVATE_kEY], //pass the wallet private key, not the api key
        },
        etherscan: {
            apiKey: process.env.ETHERSCAN_API_KEY, // Pass the full URL here
            accounts: [PRIVATE_kEY],//pass the wallet private key, not the api key
        },