CRYPTO NEWS

Beyond the headlines: The real adoption of Bitcoin salaries

Bitcoin wages are becoming more common globally, particularly among “borderless” remote workers and in certain regions like Latin America.

Multiple ERC-721 tokens points same uri

This is a question about ERC-721 contract. NFTs needs to be unique to a specific wallet. But in my contract _tokenURIs variable stores IPFS address with tokenIDs. Here is my function function buyCustomizedNFT(string memory uri) public payable { if (totalSupply() != 0) { require(_uriToTokenId[uri] != 0, "NONO YOU CANT"); } require( getDraftNumber(msg.sender) >= 1, "First::Listen

This is a question about ERC-721 contract. NFTs needs to be unique to a specific wallet. But in my contract _tokenURIs variable stores IPFS address with tokenIDs. Here is my function

    function buyCustomizedNFT(string memory uri) public payable {         if (totalSupply() != 0) {             require(_uriToTokenId[uri] != 0, "NONO YOU CANT");         }         require(             getDraftNumber(msg.sender) >= 1,             "First you need to draft for buy customized NFT"         );         require(             totalSupply().add(1) <= MAX_SUPPLY,             "Sales is already ended for this amount"         );         require(nftPrices[uri] != 0, "Unrecognized token price");         require(nftPrices[uri] == msg.value, "Invalid AVAX value");         uint256 newTokenID = _tokenIds.current();         draftAmounts[msg.sender] = draftAmounts[msg.sender] - 1;         _safeMint(msg.sender, newTokenID);         _setTokenURI(newTokenID, uri);         // _setUriToTokenId(uri, newTokenID);         _tokenIds.increment();     } 

In this function contract mint the token with given uri and adds mapping. But if two different users enters the same uri. Is this situation acceptable? For get rid of this situation I created a new mapping for uriToTokenId. This mapping goes uri to tokenId so I can easily check this uri refers to another tokenID. Should I do this checking or is it okey with same IPFS address for multiple tokenIDs.

Beyond the headlines: The real adoption of Bitcoin salaries

Shopping cart
There are no products in the cart!
Continue shopping
0