Can I query all events for a wallet address with ethers v6？

[wenye1368]

Describe the Feature

Can I query all events for a wallet address with ethers v6？

Code Example

No response

[ricmoo]

It depends a bit on what you mean.

For a given contract address, you can query all events emitted from that address, so if it is a contract wallet, that might serve your purposes.

For events about a given EOA wallet address (I.E. one controlled by a private key), you can query for all Transfer events to or from, if you know the ABI. This likely works for most of your purpose, since you can use the topic filter [ topic0, zeroPadValue(myAddr) ] for example to get all Transfer events from the wallet and [ topic0, null, zeroPadValue(myAddr) ] for all Transfer events to the wallet, where topic0 is id("Transfer(address,address,uint256)").

You can come up with a series of heuristics for events you care about. But there isn’t really a way to detect all “events for a wallet address” in a generic way, because it’s not really well defined what it even means to be “for a wallet address” as each contract gets to dictate what that means.

For example, imagine if you entered a lottery contract and it emits only a Won event to the winner; if you lose, the Win event is interesting to you and “about your wallet” (because you want to know you lost by seeing a Win event that doesn’t have your address in it).

Another example might be a zero-knowledge mixer, which emits an event with your address blinded (hashed to keep secret), in which case it cannot be queried by standard means.

So, it depends on your purpose, but for the most part a couple heuristic filters will probably catch most of what you care about. :)