This is a package for getting metadata for solana NFTs.
I followed this guide pretty closely while making it. https://gist.github.com/creativedrewy/9bce794ff278aae23b64e6dc8f10e906
You can run this to get all nft metadata that a solana wallet has
./sol-nft -address={solana wallet address that holds nfts} -command=account
Or get metadata for an individual NFT
./sol-nft -address={solana nft mint address} -command=nft
You can also use the methods in /pkg as a part of your own solana NFT project.
I originally had this getting all NFT metadata concurrently, but it's very tough to get around rate limiting. For this reason, if you are building a web app it's best to handle interactions with the solana mainnet on the client side.