Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.berachain.com/llms.txt

Use this file to discover all available pages before exploring further.

​
RewardVaultHelper Claim Flow

RewardVaultHelper lets a staker claim rewards from one or many vaults and choose the output token format. Supported output tokens:
  • $sWBERA (configured by admin)
  • Native $BERA (address(0) selector)
The two-argument overload claimAllRewards(vaults, receiver) transfers accrued $WBERA (the emission ERC-20) to receiver without wrapping or unwrapping.

​
Contract behavior

  • claimAllRewards(vaults, receiver) credits $WBERA to receiver.
  • claimAllRewards(vaults, receiver, outputToken) routes output based on selector (sWBERA or native BERA).
  • For $sWBERA, helper approves WBERA to the sWBERA vault and calls IERC4626.deposit.
  • For native BERA, helper unwraps WBERA with IWBERA.withdraw and forwards ETH.

​
Permissions

  • setSWBERA(address) is gated by DEFAULT_ADMIN_ROLE.
  • Claim methods are permissionless for stakers.

​
Worked example (sWBERA and native BERA)

pragma solidity ^0.8.26;

interface IRewardVaultHelper {
    function claimAllRewards(address[] memory vaults, address receiver) external;
    function claimAllRewards(address[] memory vaults, address receiver, address outputToken) external;
    function WBERA_ADDRESS() external view returns (address);
    function sWBERA() external view returns (address);
}

contract HelperClaimExample {
    IRewardVaultHelper public immutable helper;

    constructor(address helper_) {
        helper = IRewardVaultHelper(helper_);
    }

    function claimAsSWBERA(address[] memory vaults) external {
        address sWbera = helper.sWBERA();
        helper.claimAllRewards(vaults, msg.sender, sWbera);
    }

    function claimAsNativeBERA(address[] memory vaults) external {
        helper.claimAllRewards(vaults, msg.sender, address(0));
    }
}

​
Integration notes

  • The helper validates output selectors; unsupported tokens revert.
  • Prefer exposing $sWBERA and native $BERA as the staker-facing claim outputs.
  • Use Partial Reward Claims for claim-size control.