Feegrant Precompile

0x0000000000000000000000000000000000001010

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

address constant FEEGRANT_PRECOMPILE_ADDRESS = 0x0000000000000000000000000000000000001010;

IFeegrant constant FEEGRANT_CONTRACT = IFeegrant(FEEGRANT_PRECOMPILE_ADDRESS);

interface IFeegrant {
    // Queries
    // Returns the fee allowance granted to the grantee by the granter. The
    // allowance field of the returned grant is JSON-encoded.
    function allowance(address granter, address grantee) external view returns (Grant memory grant);

    // Returns all the fee allowances granted to the given grantee, with pagination.
    function allowances(address grantee, bytes memory pageKey) external view returns (AllowancesResponse memory response);

    // Returns all the fee allowances issued by the given granter, with pagination.
    function allowancesByGranter(address granter, bytes memory pageKey) external view returns (AllowancesResponse memory response);

    // Structs
    struct Grant {
        string granter;
        string grantee;
        bytes allowance;
    }

    struct AllowancesResponse {
        Grant[] allowances;
        bytes nextKey;
    }
}

function allowance(address granter, address grantee) external view returns (Grant memory grant);

function allowances(address grantee, bytes memory pageKey) external view returns (AllowancesResponse memory response);

function allowancesByGranter(address granter, bytes memory pageKey) external view returns (AllowancesResponse memory response);