Represent GRG Staking Proxy balances as ERC4626 #37
Description
Summary
Represent GRG staking proxy user balances as ERC4626 to allow easier and better data display by service providers.
Motivation
External applications now cannot see a wallet's staked GRG balance (vault balance plus unclaimed rewards). This requires developing a custom extension to service providers like DefiLlama or Zapper.
ERC4626 provides a standard for vaults, which exposes methods that return the underlying token balance. By implementing this standard, external service providers could display staked GRG in a user's wallet and their $ value. This would be particularly useful for Etherscan display, where it is not possible to develop a custom smart contract position fetcher.
Specification
- use OpenZeppelin ERC4626 standard;
- import interface methods;
- use their implementation;
- do not implement transfer, transferFrom and approve methods as GRG staked positions are non-transferable.
Notice: assert ERC-4626 inflation attack cannot be executed.