Currently in the market, decentralized exchanges hardly support limit order, especially onchain limit order.
Running order book on smart contract is not impossible, but ensuring transaction speed and user experience is a difficult task.
Swaperry solves this problem with an unique algorithm named performant hashing to implement a completely onchain orderbook.
This orderbook is governed entirely by smart contracts, and is 100% transparent, providing equal information for traders and exchange.
Traders could see all the orders on the exchange.