1. Is there a way to send ERC20 and include a message?
2. Is there a *simple* way to send ERC20 and include a message?

Something like: Send 10 USDC with the message "happy b-day".

Dad, geek, conversation liquidity provider. vrypan.net (home), /weatherxm (work), @l--o--l (fun). Also https://paragraph.xyz/@purplesubmarine

You can append arbitrary data to the call data, which will be ignored during execution

cypherpunk wannabe, engineer working on @frames /open-frames /opencast
https://stephancill.co.za create stories at https://stories.steer.fun

Yeah I agree, very useful for indexing purposes. It’s used by opensea for order attributions and of frames for tx frame attributions though

Viem actually supports adding this when writing. It’s called the dataSuffix 

https://viem.sh/docs/contract/writeContract#datasuffix

It seems they don’t have support for easily reading it though so you’ll have to do that yourself

So, I will have to "translate" the tx data and see the additional call data, right? It's weird that this is not already packaged in a more user-friendly way. A payment with the invoice number. A tip with a short message. 

It could be a nice frame: 
- Enter amount, message, tx signing when you send
- Enter tx hash to see message, when you receive.