Summary

In this chapter, we have gone through the frontend workflow and the code of key features of the token swapping page. You have learned how to generate the graph by accessing the on-chain data with smart contracts, find the best prices for swapping tokens by iterating the graph, and interact with the AMMRouter smart contract to perform the token swapping.

We discussed liquidity management and token swapping for the tokens based on the existing blockchain till now. These tokens are also called non-native tokens and they follow a standard (e.g., ERC20), which is built on an existing layer 1 blockchain. However, a productionized DEX should support native tokens as well. The native token is also called a built-in token or native coin of a blockchain. For example, ETH is the native token of the Ethereum blockchain. To make native tokens such as ETH work with the DEXs or other DeFi smart contracts, we usually have to convert the native token to a wrapped token (such as Wrapped ETH...