withdrawAndUnstake Missing

[addiaddiaddi]

Hi, we are currently using curve.js to add liquidity provisioning to our own frontend.

We see that there is a depositAndStake function.

However, we do not see an equivalent unstakeAndWithdraw function. We would like our users to be able to unstake from the gauge and redeem their underlying LP tokens atomically.

Why isn't this included in the library. Oversight? Not possible?

Would it be optimal to add this function to the curve.js package, or create a helper contract to faciliate? Thanks for the help.

[Macket]

I didn't include that because it's impossible to make in 1 tx for most of the pools (or maybe even all, I don't remember). Only 2 txs. Do you think we need it?

[addiaddiaddi]

Thanks @Macket for the response.

Could you give an example of pools that it works/doesn't for? Why can't it be completed atomically? Is there some time delay? Never really heard of things that can be done in separate transactions that can't be done in one.

It would be helpful for us to have. Saves our users from having to do an additional transaction.

For context, we built our own pool frontend for our LST and have abstracted away the stake component (we only let users depositAndStake). It would be nice to be able to do that on the withdraw side to minimize confusion.