Lesson: 8 receiving error while funding

[0xprivateChaos]

At 13:17:52 when patrick called fund button it worked and in terminal it showed the transaction but when i'm doing the same error is popping in my node terminal, error is

eth_call
  Contract call:       FundMe#<unrecognized-selector>
  From:                0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266
  To:                  0xe7f1725e7734ce288f8367e1bb143e90bb3f0512

  Error: VM Exception while processing transaction: reverted with reason string 'Didn't send enough!'
      at FundMe.fund (contracts/FundMe.sol:57)
      at FundMe.<fallback> (contracts/FundMe.sol:49)
      at HardhatNode.runCall (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/provider/node.ts:615:20)
      at EthModule._callAction (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/provider/modules/eth.ts:353:9)
      at HardhatNetworkProvider._sendWithLogging (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/provider/provider.ts:139:22)
      at HardhatNetworkProvider.request (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/provider/provider.ts:116:18)
      at JsonRpcHandler._handleRequest (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:188:20)
      at JsonRpcHandler._handleSingleRequest (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:167:17)
      at Server.JsonRpcHandler.handleHttp (/Users/amanjat/Documents/Blockchain/32hours/hardhat-fund-me/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:52:21)

eth_feeHistory

in my contract my fund function looks like this

uint256 public constant MINIMUM_USD = 50 * 1e18;
AggregatorV3Interface private s_priceFeed;

function fund() public payable {
        require(
            msg.value.getConversionRate(s_priceFeed) >= MINIMUM_USD,
            "Didn't send enough!"
        );
        s_addresstoAmountFunded[msg.sender] += msg.value;
        s_funders.push(msg.sender);
    }

and my index.js for frontend is

import { ethers } from "./ethers-5.4.esm.min.js"
import { abi, contractAddress } from "./constants.js"

const fundButton = document.getElementById("fundButton")
fundButton.onclick = fund

async function fund(ethAmount) {
    ethAmount = "0.1"
    console.log(`Funding with ${ethAmount}...`)
    if (typeof window.ethereum !== "undefined") {
        // provider / connection to the blockchain
        // signer / wallet / someone with some gas
        // contracting that with we are interacting with
        // ^ABI and Address
        const provider = new ethers.providers.Web3Provider(window.ethereum)
        const signer = provider.getSigner()
        console.log(signer)
        const contract = new ethers.Contract(contractAddress, abi, signer)
        const transactionResponse = await contract.fund({
            value: ethers.utils.parseEther(ethAmount),
        })
    }
}

Thanks for help!

[FrankYChills]

@Aman09-Jat i guess you need to change uint256 public constant MINIMUM_USD = 50 * 1e18; to uint256 public constant MINIMUM_USD = 50 cause in the require statement we'll be getting the conversion rate of our send value in USD.

[0xprivateChaos]

Tried its not working. Actually i also have price converter

function getConversionRate(
        uint256 ethAmount,
        AggregatorV3Interface priceFeed
    ) internal view returns (uint256) {
        uint256 ethPrice = getPrice(priceFeed);
        uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1e18;
        return ethAmountInUsd;
    }

[FrankYChills]

@Aman09-Jat it should be ethAmountInUsd = (ethPrice * ethAmount) / 1e26 to get price in conversion rate in USD cause we have 8 extra zeros from price we get of eth/usd and 18 extra zeroes from ethAmount(8+18=26).

[pacelliv]

The transaction was successful ?

[0xprivateChaos]

Nope it is not working!

[alymurtazamemon]

@Aman09-Jat Please share your repo link, I will look into it.

[usman571]

i also same the same issue, please help me 😢

[HarshulGaba]

guys just change the minimumUSD from 50*10**18 to 50. It'll work.