Farcaster Devs

I want to make a simple mint frame that accepts erc20 payments for mints. Aiming for one click.

IMO the approval step adds confusion for first timers. 

Is there an elegant way to transfer an erc20 to a contract and then check that msg.sender has sent the appropriate amount before minting? 

All roads I've thought through so far lead to the check offchain. I'm ok with that but wondering if someone has done something similar and can help me out!

Betttr

@daimo pay with custom call data

we use it for /betttr and feels great

cc @dcposch.eth

Daimo Pay. Build once, distribute everywhere

One Click Crypto. Any chain, any coin, any wallet → instant action. Grantee @ethereum, @optimism

Creating content with code: @livecaster @harmonybot /bot-or-not | /blitkin | /orange-dao | IRL: YC W15 Construction tech founder

@daimo-pay pay with custom call data

we use it for /betttr and feels great

cc @dcposch.eth 

https://paydocs.daimo.com/

product /builders-garden /farville | 
 organizing /just-frame-it | hosting a web3 hub in rome /urbe-eth /ethrome 🇮🇹🐺

https://limone.lol

maybe you can feed it to cursor and see what happens

Does one need to be a serious Dev to implement this? 
I'd like to similarly make a frame with nft mint but have no coding skills