A place for talking about the Ethereum Virtual Machine on Farcaster.

Does anyone have a good receive() snippet for autoswapping all received ERC20s to USDC via a popular AMM router? It's receive() so it will be called without offchain data arguments like quote estimate.

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but i would really not recommend doing this - you don't know the pool you're getting, is there much liquidity in there and how much you're expecting from the swap. So you can't set a slippage tolerance

could you instead emit an even on receive(), observe for this off-chain and do a swap with a proper off-chain quote?

You could in theory have a method that:
- checks IUniswapV3Factory to find a liquidity pool between InputToken and USDC
- if found, approve the UniSwapRouter to spend your InputToken
- call UniSwapRouter to swap all held InputToken to USDC using the found pool, with no min amount out (since you don't have a quote)