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!

Building paywithglide.xyz. ex Robinhood, Uber, Apple

Making cross-chain payments easy. Follow @tusharsoni.eth for updates or visit paywithglide.xyz

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

You can use @paywithglide to execute any contract tx and pay with multiple tokens in 1 click

using this in Payflow for minting zora/rodeo collectibles through cast action

cc: @tusharsoni.eth