Question formatting practice. Not a really question.

[AKIN-THOMAS]

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

import "./PriceConverter.sol";

error notOwner();

contract FundMe{
    using PriceConverter for uint;

    uint public constant MINIMUM_USD = 50 * 1e18;
    address immutable public i_owner;

    constructor(){
        i_owner = msg.sender;
    }

    address[] public funders;
    mapping(address => uint) public amountToFunders;

    function fund() public payable{
        //set a minimum fund amount in USD
        require(msg.value.getConversionRate() >= MINIMUM_USD, 'Not enough ether');
        funders.push(msg.sender);
        amountToFunders[msg.sender] += msg.value; //amountToFunders[msg.sender] += msg.value;
    }

    modifier isOwner{
        // require(i_owner == msg.sender, "Not the owner");
        if(i_owner != msg.sender) { revert notOwner(); }
        _;
    }

    function withdraw() public isOwner{
        for(uint i = 0; i < funders.length; i++){
            address funder = funders[i];
            amountToFunders[funder] = 0;
        }
        //reset the array
        funders = new address[](0);

        //Withdraw the funded money
        //transfer method
        // payable(msg.sender).transfer(address(this).balance);

        //send method
        // bool sendSuccess = payable(msg.sender).send(address(this).balance);
        // require(sendSuccess, "Sending failed");

        //call method
        (bool callSuccess, ) = payable(msg.sender).call{value: address(this).balance}("");
        require(callSuccess, "Call failed");
    }

    receive() external payable{
        fund();
    }
    fallback() external payable{
        fund();
    }
}

Sorry I don's have a question. I'm just practicing my question formatting like you said we should do on the course.

[mcgrathcoutinho]

I might use this thread to practice as well, thanks!

function fund() public payable {
        require(msg.value.getConversionRate() >= minimumUsd, "Didn't send enough");
        funders.push(msg.sender);
        addressToAmountFunded[msg.sender] = msg.value;
    }

Would put error description here

[AKIN-THOMAS]

You're welcome

[AKIN-THOMAS]

PS C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project> npx hardhat deploy --network sepolia
Nothing to compile
An unexpected error occurred:

Error: ERROR processing C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\deploy\01-deploy-fundme.js:
TypeError: Cannot read properties of undefined (reading '11155111')
    at Object.module.exports [as func] (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\deploy\01-deploy-fundme.js:19:47)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.executeDeployScripts (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1222:22)
    at DeploymentsManager.runDeploy (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1055:5)
    at SimpleTaskDefinition.action (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\index.ts:438:5)
    at Environment._runTaskDefinition (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)
    at Environment.run (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\index.ts:584:32)
    at Environment._runTaskDefinition (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)    
    at Environment.run (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at DeploymentsManager.executeDeployScripts (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1225:19)  
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.runDeploy (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1055:5)
    at SimpleTaskDefinition.action (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\index.ts:438:5)
    at Environment._runTaskDefinition (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)    
    at Environment.run (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat-deploy\src\index.ts:584:32)
    at Environment._runTaskDefinition (C:\Users\BISHOP\Desktop\blockchaiject\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)    at Environment.run (C:\Users\BISHOP\Desktop\blockchain_fcc\hardhat-fundme-project\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)

Hardhat config file

require("@nomicfoundation/hardhat-toolbox")
require("dotenv").config()
require("@nomiclabs/hardhat-etherscan")
require("hardhat-gas-reporter")
require("solidity-coverage")
require("hardhat-deploy")
require("@nomiclabs/hardhat-ethers")

/** @type import('hardhat/config').HardhatUserConfig */

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || ""
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY

module.exports = {
    solidity: {
        compilers: [{ version: "0.8.18" }, { version: "0.6.6" }],
    },
    defaultNetwork: "hardhat",
    networks: {
        sepolia: {
            url: SEPOLIA_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 11155111,
            blockConfirmations: 6,
        },
        localhost: {
            url: "http://127.0.0.1:8545/",
            chainId: 31337,
        },
    },
    etherscan: {
        apiKey: {
            sepolia: ETHERSCAN_API_KEY,
        },
    },
    gasReporter: {
        enabled: false,
        outputFile: "gas-report.txt",
        noColors: true,
        currency: "USD",
        coinmarketcap: COINMARKETCAP_API_KEY,
        token: "MATIC",
    },
    namedAccounts: {
        deployer: {
            default: 0, // here this will by default take the first account as deployer
            1: 0, // similarly on mainnet it will take the first account as deployer. Note though that depending on how hardhat network are configured, the account 0 on one network can be different than on another
        },
    },
}

01-deploy-fundme

//imports
const { network } = require("hardhat")
const { networkConfig } = require("../helper-hardhat-config")
const { verify } = require("../utils/verify")
require("dotenv").config()


module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId

    let ethUsdPriceFeedAddress
    //When should use a mock when going for localhost network or hardhat
    if (chainId === 31337) {
        const ethUsdAggregator = await deployments.get("MockV3Aggregator")
        ethUsdPriceFeedAddress = ethUsdAggregator.address
    } else {
        ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]
    }

    const args = [ethUsdPriceFeedAddress]
    log("Deploying Fundme contract and waiting for confirmations...")
    const fundMe = await deploy("FundMe", {
        from: deployer,
        args: args, //The Price Feed Address to enter the constructor in the contract.
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })
    log(`Fudme contracts deployed at: ${fundMe.address}`)
    log("___________________________________________")

    // await verify(fundMe.address, args)

    if (!chainId == 31337 && process.env.ETHERSCAN_API_KEY) {
        await verify(fundMe.address, args)
    }
}

module.exports.tabs = ["all", "fundme"]

Verify

const { run } = require("hardhat")

async function verify(contractAddress, args) {
    console.log("Verifying contract...")
    try {
        await run("verify:verify", {
            address: contractAddress,
            constructorArgument: args,
        })
    } catch (e) {
        if (e.message.toLowerCase().includes("already verified")) {
            console.log("Already verified contract")
        } else {
            console.log(e)
        }
    }
}

module.exports = { verify }

helper hardhat

const networkConfig = {
    31337: {
        name: "localhost"
    },
    11155111: {
        name: "sepolia",
        ethUsdPriceFeed: "0x694AA1769357215DE4FAC081bf1f309aDC325306",
    },
    // 137: {
    //     name: "mumbai", //Polygon Testnet
    //     ethUsdPriceFeed: "0x0715A7794a1dc8e42615F059dD6e406A6594651A",
    // },
}
const developmentChains = ["hardhat", "localhost"]


module.export = {
    networkConfig,
    developmentChains,
}

[AKIN-THOMAS]

require("@nomicfoundation/hardhat-toolbox")
require("dotenv").config()
require("@nomiclabs/hardhat-etherscan")
require("hardhat-gas-reporter")
require("solidity-coverage")
require("hardhat-deploy")
require("@nomiclabs/hardhat-ethers")

/** @type import('hardhat/config').HardhatUserConfig */

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || ""
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY

module.exports = {
    solidity: {
        compilers: [{ version: "0.8.18" }, { version: "0.6.6" }],
    },
    defaultNetwork: "hardhat",
    networks: {
        sepolia: {
            url: SEPOLIA_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 11155111,
            blockConfirmations: 6,
        },
        localhost: {
            url: "http://127.0.0.1:8545/",
            chainId: 31337,
        },
    },
    etherscan: {
        apiKey: {
            sepolia: ETHERSCAN_API_KEY,
        },
    },
    gasReporter: {
        enabled: false,
        outputFile: "gas-report.txt",
        noColors: true,
        currency: "USD",
        coinmarketcap: COINMARKETCAP_API_KEY,
        token: "MATIC",
    },
    namedAccounts: {
        deployer: {
            default: 0, // here this will by default take the first account as deployer
            1: 0, // similarly on mainnet it will take the first account as deployer. Note though that depending on how hardhat network are configured, the account 0 on one network can be different than on another
        },
    },
}

// npm i --save-dev @nomiclabs/hardhat-ethers@npm:hardhat-deploy-ethers ethers