Questions tagged [nft]

Questions about NFTs, non-fungible tokens.

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Is it possible display .gif in Metamask?

Im developing a plataform that works with Metamask in the transactions, etc... The thing is that we make NFTs from .gif and others, the problem is that those .gif doesnt move in Metamask. We have the ...
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Can I delete, change or add a new metadata?

Suppose I have uploaded metadata + images to IPFS through pinata. Next, I deploy an ERC-721 contract and paste a token URL. The main question is: can I change, delete or add metadata
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NFT2.0 from coding point of view

Can anyone explain NFT2.0 from a coding(Solidity) point of view? or introduce a source.
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How to find original mint transactions for crypto punks?

looking at etherscan https://etherscan.io/token/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb im unclear how to identify original mint transactions. Usually filtering from Null address works but looking ...
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How to transfer an NFT from a contract address to a wallet address

In a local test environment, I am able to compile this implementation of the ERC721 token standard, deploy it, mint an NFT and transfer it (using the transferFrom function) to the following deployed ...
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How to identify an opensea "collection" minted using the opensea contract?

This is the contract https://polygonscan.com/address/0x2953399124f0cbb46d2cbacd8a89cf0599974963 If you look at the interface https://polygonscan.com/address/0x2953399124f0cbb46d2cbacd8a89cf0599974963#...
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`oversized data {"name":"ProviderError","code":-32000,"_isProviderError":true} ProviderError: oversized data`

I am trying to deploy a NFT smart contract which takes 1 parameter that is an array of length 8912. The problem is the array length. I have tested with an array of length 100 and it works perfectly ...
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Is there any NFT Price API available to fetch Price of a NFT from Opensea?

I want to retrieve NFT price from OpenSea and LooksRare using contract address and token ID. Is there any such API or SDK available for this purpose ? I am not looking for opinion just a simple API ...
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Implementing Local Accommodation with NFTs

Considering that someone with a property wanted to rent it (almost like he would host it on Airbnb) but he wanted to do it with NFTs, what would be the best way to implement this mechanism? I mean I ...
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Free NFT for owners of another NFT

I am trying to release an NFT where it's a free mint for holding another NFT. I am trying to use balanceOf, but I realize this is exploitable without tracking used tokens - as a user could mint 10 ...
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Getting error Erc721 : operator Query for non existent token

I am making a nft rental contract. When calling setUser or any function in the contract error is generated -- ERC721: operator query for nonexistent token. Even if the token is minted . Any guess why? ...
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Problems when trying to initialize array of tokenIDs. Remix stuck "pending"

I would like to initialize an array of custom token IDs (uint32) in my Solidity smart contract. I tried these two options, but none of them worked: (1) Calling a function at deployment that would ...
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Could not find artifacts for " + import_path + " from any sources"

I'm following this tutorial on creating my own nft and I came across this problem. Can someone help me PS C:\Users\caclc\contracts> truffle migrate Compiling your contracts... Everything is up to ...
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How to Air Drop rewards to NFT Holders?

How can you know which users are still holding your NFTs? What if someone Mints an NFT and then at some point they sell/transfer it to someone else? How would you go about updating the holders then ...
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Solana's Candy Machine mints nft's already minted nfts again

Solana's Candy Machine mints NFT's already minted nfts again, When we mint the nfts that are already minted it shows in the phantom wallet that a new NFT was minted but there's no image. How can we ...
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Is it possible to write protect an IPFS base url?

Imaging you have an ERC721 contract with an infinite max supply. Usually, the metadata IPFS url will be the base url concatenated with the token ID: ipfs://[base-url]/[token-id]. Say we are up to ...
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How to create an Erc721 contract with fixed dollar price per token (eg. 1 nft should always cost 200$, irrespective of the ether price)

I'm creating an Erc721a contract and I want to set the price of my tokens to 200$, and for that I used chanlink's aggregator v3 interface which returns the dollar value, but how should I use this ? If ...
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It is possible to see NFT attributes (IPFS metadata) on Metamask?

I have developed an ERC-721 Smart Contract, to mint NFTs following the OpenZeppelin guide and ERC721URIStorage.sol extension. In the tokenURI property I'm adding a JSON file stored in IPFS, following ...
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How do I download an entire NFT collection, including metadata

I want to download an entire collection, including the metadata. Any help would be appreciated.
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Funds stucked in smart contract

I have a question. So there is a project named StarsLab that had it's mint live in the beginning of this year. They started first the WL sale. I wasn't WL but was able to mint so reported it to the ...
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i'm working on an NFT collection following a tutorial video on web3 dao. my contract isnt compiling and it's showing the error below

//SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/access/Ownable....
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HTML5 based NFT to reference itself with it's ID

I would like to create an HTML5 NFT that can interact with the smart contract. Like if I press a button in the HTML5 NFT, I can save data to a contract Array or Hashmap thru a gas powered transaction. ...
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Can ERC721 NFT issuer modify onchain metadata after selling?

I mint an ERC721 NFT and transfer the token to another address. Do I, as the original issuer, still have privileges to change any token properties? If yes, can these 'issuer privileges' be transferred ...
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Is there an API to fetch collection-level NFT stats from 0x orders like floor price, total volume, etc?

Opensea and Looksrare offer collection-level NFT stats API endpoints (i.e. https://docs.opensea.io/reference/retrieving-collection-stats and https://looksrare.github.io/api-docs/#/Collections/...
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Can we gat the data of all the games deployed on a blockchain network

I am looking to learn GameFi aspect of Blockchain. For that I got a project which needs to collect the data of many games deployed on a Blockchain Network. Is there any way of doing that? I need APIs. ...
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Can I leave a gap between token indexes?

I am writing an ERC721 smart contract for minting a collection of 10000 NFTs + 100 reserved for the owner. However I was wondering if it could be done by reserving token ID's 0-99, which can be minted ...
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Cheaper way to mint NFTs to addresses( airdrop) by using ERC721 contract?

I want to create an NFT contract and mint some NFTs to some addresses. I have a function as follow: function airdrop(uint256 tokenId, address _receiver) public onlyOwner { _safeMint(...
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How to bulk airdrop ERC721A

What is the cheapest way to bulk airdrop ERC721 NFTs? Is there a platform to do this without spending too much on gas?
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How does the airdrop WETH-bid scam work?

Currently there are (again?) quite some NFT airdrops followed up by 1 WETH bids, trying to trigger fomo by airdropping the same token id to multiple users so they feel rushed to sell first. According ...
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Opensea error: 'AccountData' object has no attribute '_meta' [closed]

I am trying to put on sale an NFT in Opensea (mainnet or testnet) and it launching next error. Any idea what i am doing bad? Thanks. error Relay request for `OrderCreateActionModalQuery` failed by the ...
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Images on OpenSea not updating correctly after metadata refresh

I've deployed a contract that lets users mint NFTs, which will be revealed the artwork at a later time. This was due to the fact that people could guess rarity from ipfs. The contract was deployed on ...
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How to write the NFT contract for minting specified NFT?

I found that the NFT contract normally for minting NFTs in order. Is it possible that I change the minting function to include the id of NFT as an input variable so that customers can mint the ...
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Can I re-deploy an NFT contract when the previous contract hasn't had any interactions?

I have created, deployed and verified an ERC721 smart contract for an NFT collection. The base URI is set in the contract, but no tokens have been minted yet and the contract hasn't had any ...
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Are the assets instantly transferred in this smart contract?

I am entirely new to solidity and web3 in general so I am not entirely sure how to frame this question but are the NFTs instantly transferred once a user bids in this dutch auction smart contract? // ...
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Possible to have a whitelist & public sale active at the same time?

In our smart contract we are going to have the first 1000 mints be free, but 200 of those mints need to be available only to people on a whitelist. The remaining 800 mints need to be available to ...
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ERC721 transfer, not owner or approved

I am building a webiste to sale self made NFTs on private chain. The system flow is: Website (contract owner), mint nft, and then put it on sale. (Mint and set approver). Since the approver cannot be ...
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Is there any open source of NFT Marketplace using 0x Protocol?

I have worked on several NFT Marketplaces using Solidity before. Now I am going to build MVP NFT Marketplace using 0x protocal. Can you help me how to find the open source (with document hopefully) ...
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NFT mint call reverted while testing

So I have gotten to the point in my NFT project where I am testing the minting from the website that I setup to mint from. I deployed to Rinkeby, and when I go to mint NFTs on my website, I get the ...
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Token transfer proxy

Why NFT marketplaces use a tokenTransferProxy instead of a function? opensea: function transferTokens( address token, address from, address to, uint256 amount ) internal { if (...
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TypeError: nft.mint is not a function

I am trying to mint an NFT using ether.js, ipfs but got following error while minting. Code calling mint function is as following and nft is Can someone help me understand root cause of this?
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Transfer ERC721 tokens in BULK to single address

I want to know what is the gas effective manner to code to transfer many (e.g 1000) ERC721 tokens to a single address. I have tried the way below but I want something more efficient. function ...
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How to i send NFTs in bulk on the polygon network

is it possible to send NFT in bulk to another wallet using gnosis safe? were struggling to figure out a way to do this, much help appreciated
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How do I remove a Royalty address from my nft contract?

So I recently created an nft collection and after already creating the contract and minting 1,000 nft's I saw in the source code that it's creator (hashlips) had a line of code that collects 5% fee: ...
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>> Using an NFT to Access a Multisig <<

I would like to create a multisig wallet that allows access to wallets that hold a specific NFT. Gnosis safe allows access to specific wallets, but I want this process to be even easier by enabling ...
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Pinata doesn't work

I found that my images and metadata which uploaded to Pinata can't be showed currently. The website shows The images and metadata still can be viewed on Opensea. But I know that Opensea has its own ...
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Read a variable from a onchain deployed contract

I was deploying a NFT and the VRF coordinator takes too much time to respond and I cant see if the _safemint function is working or not. Also i cant verify the contract on rinkeby.io Is there a way to ...
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HardHat error: Invalid number of arguments error for constructor with no passed arguments

When ever I run npx hardhat test I get this Error: missing argument: in Contract constructor (count=0, expectedCount=1, code=MISSING_ARGUMENT, version=contracts/5.6.2) here is the main contract: ...
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Why is it is "i + 1" in this forLoop and not "i"

Can anyone tell me why the if statement in this function.... if(idToMarketToken[i + 1].owner == address(0)) is using i+1 and instead of i? Why doesn't "i" alone work? function ...
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Why do people like use erc721 to public NFT instead of erc1155?

In theory, the ERC1155 can fulfill everything the ERC721 can, and more gas-efficient. So Why do people like use erc721 to public NFT instead of erc1155?
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Is it possible to use both ERC721 and ERC1155 standards in the same staking contract?

Is it possible to use both ERC721 and ERC1155 standards in the same staking contract, or would that require 2 separate contracts?
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