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Minting NFTs

Most NFT marketplaces give their users the ability to mint NFTs from user-provided digital media. Users can, later on, post the minted NFTs for sale.

An NFT marketplace can add support for minting NFTs on the Flow blockchain using a contract based on the Flow NFT Standard. Here is an illustration of how to write a contract for your own NFT.

A few important points to note:

  • Do implement your NFT contract to conform to the NFT Metadata Standard. You should implement the “Display” view to provide the rendering information for the NFTs. This code snippet shows how to implement metadata in the NFT contract. Conforming to the metadata standard will facilitate rendering by wallets, tools, and other applications.
  • Do make sure to register your contract in the Flow NFT Catalog. Doing so will ensure that wallets and other applications will render your NFTs. It will also guarantee the authenticity of NFTs minted by your application on other platforms.
  • Individual collections per user are not currently supported. So NFTs for all the users will have to share the same contract. You can include a field in the contract indicating a collection name specific to a creator.

​​Lazy Minting​

Some blockchains have super high gas fees. That compels NFT platforms, especially marketplaces, to implement "lazy minting" to save on gas/transaction fees.

Flow blockchain's mission is to make blockchain accessible for the masses. We will never expect to see high transaction fees on the Flow blockchain.

Note: You can check the details on Flow fees here.

Based on current and future low fees on the Flow blockchain, NFT marketplaces do not need to implement lazy minting.