Upgrading order validator from ERC-1271 to ERC-6492 - required for ERC-4337

[MakiBM]

I have a question / issue regarding your order validator service:
https://github.com/rarible/ethereum-indexer-public/blob/8061d075baf19ea6bb59fe56820fa8a96cd21a65/order/api/src/main/kotlin/com/rarible/protocol/order/api/service/order/validation/validators/OrderSignatureValidator.kt#L49

Your logic for validating signature is based on ERC-1271. Any chance you could upgrade it to ERC-6492?

Example implementation
https://github.com/AmbireTech/signature-validator

That's a serious business blocker for us as we're implementing accounts as per new ERC-4337. Signer becomes a separate entity and it's not the same as NFT owner / order maker.

All but sell SDK operations (mintAndTransfer, directPurchase, safeTransfer, burn, cancel) are happening in the background via direct eth_sendTransaction calls. The sell happens differently: eth_signTypedData_v4 and then api/orders. We were able to upgrade all eth_sendTransaction logic without any changes on your end but the flow of sell logic makes it harder / impossible for us.

Eventully as a plan b - do we have any way to list NFT for sale without using your API / indexer?

[evgenynacu]

Thanks @MakiBM
Currently this issue is in the next week's sprint, but at this point we can't give an ETA about it
Will keep you posted