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

Functionality I deeply want: the ability for smart contracts to take action based on certain onchain events

For example: if wallet A sends ETH to wallet B, smart contract does X

Is this possible today / is anyone working on this?

It's called event based smart contracts,  basically allowing smart contracts to subscribe to on chain events

Found some research here: https://ethresear.ch/t/event-driven-smart-contract-development/3047

I think there have been attempts, but the issue is that it introduces a lot of complexity to the VM

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The closest to this I'm aware of is offchain hooks that trigger other onchain actions, like:

It would be better for composability to be fully onchain

The closest to this I'm aware of is offchain hooks that trigger other onchain actions, like:

https://docs.tenderly.co/web3-actions/intro-to-web3-actions

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trying to sound smart /doingnumbers

one way to do it is to implement a function that a searcher can call once the condition is met and get rewarded for it

very expensive on mainnet and/or without token emissions tho

Here: https://twitter.com/OPLabsPBC/status/1551593065109864448?s=20

Someone at OP labs built something like this but I can't remember the name of the project