2022年11月23日

Uniswap实验室最初想到Permit2和通用路由器就是为了让他们的产品更好。其目标是降低燃气费用，简化用户交易流程，并加强安全性。Uniswap致力于提供推动加密货币向前发展的公共工程。他们创建了这些契约供开发人员生态系统使用，包括sdk、详细的文档和为期两周的bug赏金。通用路由器- NFT交换和统一令牌团队已经将Permit2系统集成到另一个创新合约中。作为Uniswap的下一代路由器，通用路由器将令牌和NFT交易集成到一个可适应的、燃气优化的、安全的和可扩展的平台中。由于通用路由器极大地增强了产品和用户体验，它将很快取代Uniswap作为默认交换路由器。输入如“最大滑移量”、“交换路由”和“交换接收方”由交换路由器处理，然后在指定的目的地执行交换。为了节省汽油的钱，交换路由器，寻找最好的交易，并执行它们。然而，目前的交换路由器有两个低效率的地方:大多数现有的交换路由器只允许ERC20令牌或nft。 So now, deals, including both, must be broken up into separate transactions. For example, if you only had an ERC20 token, you would have to pay for an NFT in two different ways. The first exchange is DAI for ETH, followed by the last exchange, which is ETH for NFT. Swap routers are a significant investment because users must validate each token before it can be used, making frequent upgrades prohibitive. For aggregator swap routers, this is more troublesome because contract deployment is required whenever a new protocol is implemented. How Universal Router unifies swaps Users of the Universal Router can purchase NFTs from various marketplaces and carry out different token swaps on Uniswap V2 and V3 in a single transaction. For example, consider a hypothetical exchange that: Consists of three distinct tokens for user input. Using a branching strategy, Uniswap versions 2 and 3 can perform swaps. Carry out a wrap from ETH to WETH Buys a non-fungible token on OpenSea All of these steps can be completed in a straightforward transaction. Because of Permit2’s integration with the Universal Router, users can give their stamp of approval before passing their signature on to the latter, which then handles the token approval flow independently of the router contracts. Without consumers having to send a new approval transaction for each update, developers can roll out new variants of the Universal Router. So, new features can be added in the future, but the Universal Router (or any other integrated contract) stays the same. Read more about