Category "nft"

Metaplex sign command metadata parameter

After creating an NFT via candy machine v2 I'm trying to execute a sign command (link to the docs) This is the command from the documentation: ts-node ~/metaple

Why do sender and minter should be same on minting NFT?

I am developing NFT marketplace with terra and I use CW721. And I noticed on mint function if the sender and minter is not equal it returns "Unauthorized" error

How to transfer a NFT from one account to another using ERC721?

I'm writing an NFT smart contract using the OpenZeppelin ERC721Full contract. I'm able to mint NFTs, but I want to have a button that enables them to be bought.

Why do openSea fetching data from IPFS all of a sudden?

This the validation json I got for my nft toke 34 HTTP 200 OK Allow: GET, OPTIONS Content-Type: application/json Vary: Accept { "valid": true, "token_u

create two nft collections from one smart contract (erc1155) in OpenSea

I want to list two collections on Opensea but instead of creating two smart contracts for that, I want to create only one (to save gas fees of uploading a contr

Why my ERC721 contract in Opensea can't work normally (Without any code of openzeppelin github)

I want to know how OpenSea system read contract and call functions. So, I try to write a ERC721 contract without import any other code. // SPDX-License-Identifi

Problem authenticating via the OpenSea JDK

I am trying to authenticate my wallet against OpenSea using the SDK, but fail doing so. Here's my code snippet: const walletSubprovider = new MnemonicWalletSubp

CATCH ERROR: NOK: Transaction not found with hash: With codeSTACKr's NFT art generator

I am trying to create a NFT Collection. But I am facing issues. I am using https://github.com/codeSTACKr/create-10k-nft-collection When I run npm run get_contra

How can I get a list of NFTs that I have minted?

I am building Social Media for NFT. I would like to get a list of NFTs minted in the past by a particular user in Ethereum and Polygon Chain. It does not have t

Elrond mandos test elrond_wasm_debug::mandos_rs pass however erdpy contract test fail

I'm writing test cases for my NFT smart contract (SC). When I check the state of the SC after creating my NFT I'm expecting to see a variable (next_index_to_min

Testing NFT contract on polygon

I am following the steps of the tutorial in the OpenSea tutorial below: https://docs.opensea.io/docs/setting-up-your-smart-contract-project It looks like this i

can't import module from solidity file to python file in brownie; ImportError: cannot import name 'AdvancedCollectible' from 'brownie'

I'm trying to build out this tutorial, but I keep getting the same error when I try to import from a solidity file to a python script and run it, all in the sam

Uploading metadata to IPFS using Pinata API for NFTs

I'm having an issue uploading my metadata to Pinata via their API. I've tried it in a test file and it works perfectly, but in my larger file, it's throwing an

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