CW20 example contract which 1-to-1 mapped to native token

[yihuang]

Messages

• deposit message that lock native token and mint same amount of cw20 token
• withdraw message that burn cw20 token and release native token
• other standard cw20 messages.

Purpose

• Some contract only works with cw20 token because of approval functionality, this will enable user to use native token as well.

[ethanfrey]

The cw20-bonding curve with a constant price and no exit tax should work for this use-case.
You could try that locally to start.

If you think there is a larger case for a simple contract to just do this, then I am open for a PR. It would be nice to have some discussion on this (wrap native -> cw20. what about cw20 -> native? we kind of do that over IBC now, but is this an important case?)

[yihuang]

The cw20-bonding curve with a constant price and no exit tax should work for this use-case.
You could try that locally to start.

cw20-bonding seems to do what I have in mind. 👍

If you think there is a larger case for a simple contract to just do this, then I am open for a PR. It would be nice to have some discussion on this (wrap native -> cw20. what about cw20 -> native? we kind of do that over IBC now, but is this an important case?)

I can think of some use cases for cw20 -> native, for example to use cw20 in native liquidity module, or use ibc-transfer with cw20 tokens?

[ethanfrey]

Can I close this issue?
Does the bonding contract work well enough, or would you prefer a custom contract for this use case?
(I am happy to leave the issue open and accept a PR, but doubt I will get around to that anytime soon)

[yihuang]

I think the bonding contract work well, thanks, closing now.