Questions tagged [nft]

Questions about NFTs, non-fungible tokens.

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How NFT marketplaces detect NFTs metadata updated?

I have learned ERC-4906 to notify updating metadata. I found out the way to detect some NFTs metadata updated, but I don't know how marketplace detect tremendous NFTs metadata updated. Please let me ...
ttt's user avatar
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Opeansea does not preview gltf animations of gltf files stored in ipfs

In theory opeansea supports gltf and gtb files using the animation_url in json file. However they don't render the animation and just display the text of the the gltf file and does not render it (see ...
Iván's user avatar
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How does ens.domains generate unique NFT images with the ens domain name on it at purchase?

How does ens.domains generate unique NFT images with the ens domain name on it at purchase? What I mean is: So when you find and purchase your ens domain on ens.domain, after purchase you're instantly ...
jiamijiang's user avatar
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Can I complete a transaction some unspecified time after signature?

I want to: User signs and gives needed permissions X time passes, an if statement in a code loop triggers A specified NFT is listed for sale using open-sea API Since this code will run through the ...
Shrey Birmiwal's user avatar
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How do i read sales here?

I've been trying to read the sales in this transaction. Tried to read "Execution721MakerFeePacked" event But could not understand anything from it. Tried seeing what NFTs got transferred and ...
Ladybug's user avatar
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How can I design smart contracts for p2p vehicle trading?

The idea is to have two contracts: OrderManager Contract NFTMinting Contract OrderManager will manage the funds transfer for the vehicle; buyer will deposit the funds, the seller will withdraw them; ...
Geek's user avatar
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What makes an NFT non-fungible?

According to the provisions of ERC721 Contract; when minting an NFT collection we can set the maxSupply of tokens for that particular Asset/NFT say a particular Artwork. And everytime someone mints an ...
Geek's user avatar
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Seeking Smart Contract for Certifying Physical Artworks Similar to Kronos360

I'm looking for a smart contract that can certify physical artworks, similar to Kronos360's approach for watches. The contract should mint a unique token for each artwork, linked to its image and ...
YoannR's user avatar
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How do people solve NFT cross-chain when developing on your own rollup?

This is a question about developing a game using its own side-chain. In this case, the NFTs would be minted on the side chain. Now the players can trade NFTs with each other but some of them might ...
Justin Zhang's user avatar
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How two different functions name can have same function signature?

This is the below code cast sig "workMyDirefulOwner(uint256,uint256)" 0xa9059cbb ...
MD AZAD's user avatar
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How to generate new Breed NFT Image?

How do I use two NFT images to create a new NFT through breeding? I'm a bit confused about this. I've used different attributes for coverage. now I want to generate the image as well. For example, if ...
Maidi's user avatar
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Possible to get latest NFT from a collection with web3.js?

I want to show the most current NFT from a collection on a website. Is this possible with web3.js? I have a working example how to load all NFTs from a collection which are owned by a certain wallet ...
aronsommer's user avatar
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Alchemy GetNFTsForOwner mint address is null

I'm using GetNFTsForOwner from Alchemy SDK and I expected to get minting information such as mintAddress and transactionHash to linked to my data on my database. But in my result the mint data is null....
Guege Pol's user avatar
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analysing a wallet on a specific contract (web3js/ethers)

is it possible to obtain the transactions of an eth address on a given contract (nft)? at the moment the os API does not allow this, or rather, I would have to iterate over all wallet transactions ...
klok's user avatar
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Testing incrementation in Foundry

Currently testing my smart contract using Foundry and I believe it is going pretty well. However, I have some incrementation going on in my smart contract program which is an NFT Marketplace and I am ...
EGstacking's user avatar
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Testing a node.js script on mainnet

I have a Node.js script that sells 105 NFTs to the highest bid offers. I have tested the script on testnet but to be 100% sure, I also want to test the script on 105 NFTs on the mainnet. But I do not ...
Salman's user avatar
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I'm new to web3 and blockchain development [duplicate]

I'm just starting out in web3 and blockchain technology. Can someone recommend any resources and where to start from
OLAWALE OLALEKE's user avatar
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How to transfer an NFT from my wallet to the user wallet, with automatically signing the transaction in the backend when claim button is clicked?

I have the code, but the issue I am facing is, I'll need the contract ABI and for that I will need the user wallet address, the "To" address where the NFT will be sent. However that is not ...
Coding_templar's user avatar
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Efficient Storage Strategies for ERC721 with Editable Content

I'm just starting to learn about smart contracts, Ethereum and NFTs. It's all new and I need your help with managing editable NFTs. I want to create a NFT with content that is easy to modify while ...
user9541033's user avatar
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Deployment Issues with BasicNFT on Sepolia Network Using Foundry: Mismatched Bytecode and Successful Deployment

While deploying a smart contract using Foundry on the Sepolia test network, I'm encountering an issue. The deployment seems successful, but I'm facing a challenge verifying the contract's bytecode. ...
Aryan's user avatar
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Is it possible to bind a metamask wallet account to my website's own accounts database?

to be specific, we want a user that should first login to our website then after login be able to connect their wallet account. the question is, is it possible to create one account and bind the ...
Snoopy's user avatar
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Opensea nft seller problem

I tried selling my nft on opensea the buyer is clean and am clean, he purchased my nft and then it asked for gas fee payment which wasn’t successful and i messed up since i was new to this and couldn’...
Zinko's user avatar
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DeclarationError: Undeclared identifier. contracts/GorillaNFT.sol:98:5: | 98 | _setTokenURI(tokenId, tokenURI); CAN ANYONE HELP PLZ?

// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/...
Mike's user avatar
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Can't see the metadata for my sepolia nft on opensea's testnet or ehterscan testnet

I'm following a tutorial on how to create an ERC721 contract and I've ran into a problem. I can't see the image for an NFT I've minted on Opensea's testnet. none of the metadata will load after almost ...
Jupiter Express's user avatar
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26 views

Is NFT swap possible on cross chains?

I have done a bit of research on this, and I have found only the same chain NFT swap but I want to know the different chain swapping b/w two users, Please provide some links or guidance to achieve NFT ...
Vinit_2311's user avatar
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Smart Contract Logic for Dynamic Yield Distribution in ERC-4626-Based Promo Code NFTs

I am implementing a feature an NFT feature NFT promo codes, using ERC-4626 (Tokenized Vault Standard) to create promo code NFTs that accrue yield over time. My question is focused on one specific ...
Crypto Coupons's user avatar
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Can we provide NFT royalties to 2 addresses through Opensea?

I have an NFT collection and want to split the royalty between 2 addresses. After some research, I stumbled upon the contractURI() method where we can add the information like: function contractURI() ...
Shubham Sharma's user avatar
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29 views

How to exchange one nft for another from a different contract?

I have 2 ERC1155 contracts, and am looking to transfer nft2 into nft1's wallet upon checking wallet holds nft1, but not sure what I'm doing wrong. This is my nft1 contract: import "./NFT2.sol&...
katslair's user avatar
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Best approach to simplify phantom array logic (ERC721 Enumerable) [HARD]

I wanted to create an ERC721 token vault with arbitrary numbers of NFTs pre-"minted", yet compliant with IERC721Enumerable as a proof-of-concept. For simplicity, the NFT ids are contiguous. ...
Ashraile's user avatar
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How to make a website mint multiple copies of the same NFT?

On OpenSea, I know how to make multiple copies of the same NFT (you just make the set number larger). However I don’t want to use OpenSea, because I want a minting website, where users can mint their ...
Please Help's user avatar
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How to fix `str is undefined` nft dapp upload picture problem?

I'm trying to do an example in a tutorial, I tried to run this, but I get an error that "Upload errorTypeError: str is undefined". How can I solve this? I tried: -> deleting artifacts and ...
Kayhan's user avatar
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NFT-Marketplace-Tutorial

I try to do example this tutorial. I run succesfully this. But I take error that "Upload errorTypeError: str is undefined". How can ı solve his? I did before: -> I deleted artifacts the ı ...
Kayhan's user avatar
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Is Making an NFT on Binance Smart Chain on Remix currently possible? (compiler versions problem)

I'm trying to make a basic imageless NFT for Binance Smart Chain using remix.ethereum.org (for NFT identity verification purposes) but I've encountered a problem. Basically solidity version 0.8.2 or ...
Adjam's user avatar
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ETH stuck in Polygon (Matic): Bridge smart contract

I was trying to make an NFT purchase on OpenSea and somehow I managed to send ETH to a "Polygon (Matic): Bridge" smart contract but didn't get the NFT I was expecting in exchange. Now I don'...
johnwolf1987's user avatar
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30 views

Unable to view image from ipfs link

I am trying to make dapp in which someone will upload an image and then the dapp will mint an nft for that image and then show the image. But I am running into a problem. The dapp is generating a ipfs ...
Samarth Bagga's user avatar
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Is there any other use-case of having a decentralised network other than majorly DeFi and GameFi?

I have been familiar with the Web3 ecosystem for almost 2-years now. But I still fail to understand if there is any other real world use-case for a decentralised network other than DeFi, ICOs and NFTs ...
MT 16's user avatar
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1 answer
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How to register a work created through coding on Opensea

The work I created is made with code, and Opensea can only upload things like images and videos. Can't I upload generative art made with code?
NINI GGU's user avatar
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Transaction Builder: Error Message: GS013

I sent an nft to the wrong chain (eth) so I created a new wallet through the loom video on the correct chain (optimism). Now I am trying to send my nft from my newly created wallet on optimism with ...
Astral41's user avatar
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1 answer
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NFT transfer to a contract in ERC1155 standard

NFTS transfer from minter to contract isn't working, below is the detailed problem. NFT.sol // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.19; import {ERC1155} from "@openzeppelin/...
Shubham's user avatar
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Can I have different metadata of the ERC-1155 NFTs with the same token ID?

Let's say I mint 1000 NFT copies of token ID 1 to 1000 people. Now I want those ID 1 NFTs to have different in one of metadata, ex: Level. So when user see the NFTs on the marketplace, they will see ...
JOY's user avatar
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Perplexing issue: Ownable: caller is not the owner'

i am a new developer and i am struggling with an issue since two weeks now and can't get to the bottom of it. Here is some context: I have two smart contracts, one minting an NFT and the other issuing ...
Brandas's user avatar
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Transaction failure when deploying an NFT smart contract

I encountered this error while deploying an NFT smart contract, I am a beginner, please help me.
Raza_a's user avatar
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NFT smart contract review

I wrote an NFT smart contract based on OpenZeppelin documentation, I request you to review this smart contract and tell me if it is safe, complete and in terms of writing is clean and professional. ...
Ali's user avatar
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1 answer
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How can I fix execution reverted: ERC721: approval to current owner?

My contract is returning me this error: execution reverted: ERC721: approval to current owner How can I fix this? //SPDX-License-Identifier: Unlicense pragma solidity ^0.8.0; import "hardhat/...
Mohamed Dhaanish's user avatar
1 vote
2 answers
85 views

How can I fix a problem with transferring ERC721 by approved contract?

Hey everyone I'm new to NFT development and developing an ERC721 token for property ownership and marketplace. I implemented two functions to enable a user to put their token on sale for another user ...
emtothed's user avatar
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1 answer
119 views

ERC721 token image not showing in wallet

Hey everyone I'm new to NFT development. I developed an ERC-721 token used for property ownership and I deployed and minted a token both on Anvil and sepolia. I can import the token on metamask but ...
emtothed's user avatar
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NFT metadata for property ownership ERC721 token

Hey everyone I'm new to NFT development and I'm trying to develop a simple property ownership and marketplace using the ERC721 token standard. since I'm so unfamiliar with json I have some problems ...
emtothed's user avatar
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217 views

ERC721: invalid token ID"

I'm minting an NFT and listed it on my NFTMarketplace, after minting I keep getting ERC721: invalid token ID, whenever I try to create the sale on the market place. this is my nft code // SPDX-...
Santos's user avatar
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Batch NFT mining

I am trying to create a project where users can specify a total supply on a minted NFT, will the NFT all have the same address but with different tokenId's or they will have different addresses
Santos's user avatar
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How the uint changes to address type in solidity when using delegatecall?

pragma solidity ^0.8.18; contract One{ address public first; address public second; address public third; function setaddress(address _address)public { third = _address; }...
kumar's user avatar
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