Psp meta transactions

[shunsukew]

Meta Transaction standard proposal. ERC2771 correspondance.

[ashutoshvarma]

Great work!
It feels more like a recommendation than a specification. We should add the Trusted Contract specification with proper errors & inputs like in other PSPs

[shunsukew]

Great work! It feels more like a recommendation than a specification. We should add the Trusted Contract specification with proper errors & inputs like in other PSPs

Thank you for comment, I agree that partially. I think we should better reconsider the scope of this proposal if needed.
The original ERC2771's scope is how to transmit address as extra bytes and recover it as you can see in the diagram at Example Workflow section (https://eips.ethereum.org/EIPS/eip-2771). So, the way how to verify signatures and other Trusted Forwarder contract's specification including function signatures are out of scope.

[shunsukew]

I'll rework on Proposal draft, expanding the scope to include contract interfaces.