How to make my own wrapped token for native token like WETH, WMATIC?

Question

I want to make my own WMATIC in amoy testnet for marketplace trade. In more details, I want to suggest with WMATIC in marketplace our team had made.

I know how to deploy ERC20 name WMATIC, and I want to swap WMATIC-MATIC for 1:1.but I don't know how to swap with matic exactly. I'm trying to use uniswap v3 protocol, but it seems to swap with ERC20-ERC20, not native-ERC20.

Is there a way to swap custom wmatic and matic using uniswap protocol or any other way?

Answer 1

A wrapper is a simple thing; It's a contract that receives a currency and emits an amount of wrapping tokens according the ratio.

Since you want to use the native token it seems pretty simple; You just need to implement a receive() function in your ERC20 wrapper contract and issue a corresponding amount of wrapper ERC20:

receive() external payable {
  _mint(msg.sender, msg.value);
}