Ethereum Boilerplate Sell to Buy Problem

shuvo · December 26, 2022, 1:30pm

I got some product sell issue in my etharam boilerplate . The issue is whenever I click On a single product for selling purposes. But that time I notice a little issue. My termination purpose was to store all the sold products on my createMarketItem in the server But when I clicked on the sell button the feature didn’t work. I followed the Nft marketplace doc to implement this feature everything is working well, but my sell product didn’t store createMarketItem I could not recognize what is the main issue.
Here is show My screen Reacod Drive link : https://drive.google.com/file/d/1rXrokbOnikiqsAshE14APfx4HATzFHPP/view?usp=sharing

johnversus · July 8, 2022, 10:51am

Can you share the address of your smart contract?

shuvo · July 8, 2022, 2:27pm

Here is Smart Contruct

alex · July 8, 2022, 11:57pm

Does your marketplace contract look like the default contract for this boilerplate?

Check your contract on the chain explorer (polygonscan, etc.) if you have a Market Item event created (this should happen when you go to sell an NFT).

shuvo · July 13, 2022, 11:37am

see my explore page data all ready success but not storage data moralis server
how can solve this problem ?? 17722e3cbc2d2490dcdc171e848ae43eb75cb06e_2_690x466

alex · July 13, 2022, 10:23pm

If you’re not getting this event synced to your Moralis server database, then you may have missed a step.

Have you synced the event to your server? You can have a look at the setup instructions.

shuvo · July 14, 2022, 8:36am

here is synce

johnversus · July 14, 2022, 8:59am

There is no MarketItemCreated event emitted from the contract as this event code is not present in your contract.

shuvo · July 14, 2022, 12:46pm

github.com

ethereum-boilerplate/ethereum-nft-marketplace-boilerplate/blob/main/src/contracts/marketplaceBoilerplate.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol";
import "github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/ERC721.sol";
import "github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/security/ReentrancyGuard.sol";

contract marketPlaceBoilerPlate is ReentrancyGuard {
    using Counters for Counters.Counter;
    Counters.Counter private _itemIds;
    Counters.Counter private _itemsSold;
    
     address public owner;
     
     constructor() {
         owner = msg.sender;
     }
     
     struct MarketItem {
         uint itemId;

This file has been truncated. show original

I am using this code then deploy, and get a contract address . How can I get the MarketItemCreated Item event from the contract.
I am mainly follow this
git hub : https://github.com/ethereum-boilerplate/ethereum-nft-marketplace-boilerplate

johnversus · July 15, 2022, 4:03am

I dont see the marketPlaceBoilerPlate contract code in verified code on polygon scan.

Can you verify if your createMarketItem function has an emit MarketItemCreated function added.

github.com

ethereum-boilerplate/ethereum-nft-marketplace-boilerplate/blob/449d31c9bbc4cd55b90c4a16d080a50153c4ba7c/src/contracts/marketplaceBoilerplate.sol#L70


        nftContract,
        tokenId,
        payable(msg.sender),
        payable(address(0)),
        price,
        false
    );
    
    IERC721(nftContract).transferFrom(msg.sender, address(this), tokenId);
        
    emit MarketItemCreated(
        itemId,
        nftContract,
        tokenId,
        msg.sender,
        address(0),
        price,
        false
    );
}

shuvo · July 19, 2022, 12:55pm

I am again deploying your git hub link but can not solve this problem, now I am facing

johnversus · July 19, 2022, 2:03pm

As per the error you don’t own the NFT which you are trying to transfer. Maybe update the params with correct data and try again.

shuvo · July 31, 2022, 10:42am

I facing a problem buying sell a long time, I follow every step [Ethereum Boilerplate but can not solve this problem now I facing a problem create market items feal see this my problem.
deivelink:https://drive.google.com/file/d/1SFAGMjY09KISXwMm3bPYxlcK6kBjGpar/view?usp=sharing
here is synce

alex · July 31, 2022, 9:37pm

Is your marketplace contract on Polygon or Mumbai? You need to check the transaction hash on https://mumbai.polygonscan.com.

Is your contract the same as the boilerplate?