A virtual function called when the session is being used to verify a UserOperation. Overwrites from ERC7579UserOpPolicy.

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Usage

function checkAction(
        ConfigId id,
        PackedUserOperation calldata userOp
    )
        external
        virtual
        returns (uint256) {
    // validate the userOperation and signature
}

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Parameters

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id

  • Type: ConfigId | bytes32
The id of the configuration that is part of the session.

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userOp

  • Type: PackedUserOperation
The UserOperation that is being validated.

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Returns

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validationData

  • Type: uint256
The ERC-4337 validation data to determine if the UserOperation is valid.