I'm building a DApp for ERC721 collectibles. I want to make it more like rarepepewallet.com than CryptoKitties:
- RarePepeWallet has an order book for each token, matching asks with bids, just like any ol' exchange.
- CryptoKitties does not; you can't place buy orders under a set sale price. Only a 'Buy Now' option.
So for my DApp, if I end up storing the order book data on the blockchain, it might cost gas for every order placed, even if it doesn't end up a successful ask/bid.
What are some ways I can circumvent this? Is 0x a possible solution?