# IKyberFeeHandler

{% hint style="warning" %}
You are referring to the **`Legacy`** version of KyberSwap docs.

For the most updated information, please refer to:

* [**`Classic`**](https://github.com/KyberNetwork/kyberswap-documentation/blob/main/reference/legacy/api-abi/core-smart-contracts/broken-reference/README.md)
* [**`Elastic`**](https://docs.kyberswap.com/reference/legacy/kyberswap-elastic)
* [**`Limit Order`**](https://docs.kyberswap.com/kyberswap-solutions/limit-order)
* [**`Aggregator`**](https://docs.kyberswap.com/kyberswap-solutions/kyberswap-aggregator)
  {% endhint %}

## interface IKyberFeeHandler

*Source*: [IKyberFeeHandler.sol](https://github.com/KyberNetwork/smart-contracts/blob/master/contracts/sol6/IKyberFeeHandler.sol)

***

### INDEX[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#index) <a href="#index" id="index"></a>

\<AUTOGENERATED\_TABLE\_OF\_CONTENTS>

### REFERENCE[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#reference) <a href="#reference" id="reference"></a>

#### Events[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#events) <a href="#events" id="events"></a>

#### `RewardPaid`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#rewardpaid) <a href="#rewardpaid" id="rewardpaid"></a>

Event for logging the rewards paid.

***

event **RewardPaid**(address indexed staker, uint256 indexed epoch, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:-------------------------:| | `staker` | address | staker's address | | `epoch` | uint256 | epoch number | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xaf206e736916d38b56e2d559931a189bc3119b8fc6d6850bd34e382f09030587`

\\

#### `RebatePaid`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#rebatepaid) <a href="#rebatepaid" id="rebatepaid"></a>

Event for logging the rebates paid.

***

event **RebatePaid**(address indexed rebateWallet, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | -------------- |:-------:|:----------------------------:| | `rebateWallet` | address | address receiving the rebate | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xb5ec5e03662403108373ab6431d3e834cb1011fca164541aef315fc7dea7b3b6`

\\

#### `PlatformFeePaid`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#platformfeepaid) <a href="#platformfeepaid" id="platformfeepaid"></a>

Event for logging the platform fees paid.

***

event **PlatformFeePaid**(address indexed platformWallet, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | ---------------- |:-------:|:----------------------------------:| | `platformWallet` | address | address receiving the platform fee | | `token` | address | ERC20 token address | | `amount` | uint256 | ERC20 token amount in wei | Signature: `0xebe3db09f5650582b4782506e0d272262129183570e55fcf8768dd6e91f8c0f6`

\\

#### `KncBurned`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#kncburned) <a href="#kncburned" id="kncburned"></a>

Event for logging the amount of KNC burned.

***

event **KncBurned**(uint256 kncTWei, IERC20 indexed token, uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:----------------------------------:| | `kncTwei` | address | address receiving the platform fee | | `token` | address | ERC20 quote token address | | `amount` | uint256 | ERC20 quote token amount in wei | Signature: `0xa0fcef56e2b45fcbeb91d5e629ef6b2b6e982d0768f02d1232610315cd23ea10`

\\

#### Functions[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#functions) <a href="#functions" id="functions"></a>

#### `handleFees`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#handlefees) <a href="#handlefees" id="handlefees"></a>

Handles the fees when a trade happens in the network, unless the trade is not involving any fees.

***

function **handleFees**(contract IERC20 token, address\[] eligibleWallets, uint256\[] rebatePercentages, address platformWallet, uint256 platformFee, uint256 networkFee) external payable | Parameter | Type | Description | | ------------------- |:---------:|:----------------------------------------------------:| | `token` | address | ERC20 quote token address | | `eligibleWallets` | address\[] | array of eligible wallet addresses | | `rebatePercentages` | uint256\[] | array of rebate percentages to rebate wallets | | `platformWallet` | address | wallet address receiving the platform fee | | `platformFee` | uin256 | fee amount in wei the platfrom wallet is entitled to | | `networkFee` | uin256 | fee amount in wei to be allocated for BRR |\\

#### `claimReserveRebate`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimreserverebate) <a href="#claimreserverebate" id="claimreserverebate"></a>

Claim the rebates for the rebate wallet from KyberFeeHandler.

***

function **claimReserveRebate**(address rebateWallet) external returns (uint256) | Parameter | Type | Description | | -------------- |:-------:|:----------------------------:| | `rebateWallet` | address | address receiving the rebate | **Returns:**\ The rebate amount claimed in wei.\\

#### `claimPlatformFee`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimplatformfee) <a href="#claimplatformfee" id="claimplatformfee"></a>

Claim the platform fees for the platform wallet from KyberFeeHandler.

***

function **claimPlatformFee**(address platformWallet) external returns (uint256) | Parameter | Type | Description | | ---------------- |:-------:|:----------------------------------:| | `platformWallet` | address | address receiving the platform fee | **Returns:**\ The platform fee amount claimed in wei.\\

#### `claimStakerReward`[​](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberfeehandler#claimstakerreward) <a href="#claimstakerreward" id="claimstakerreward"></a>

Claim the staking rewards from KyberFeeHandler.

***

function **claimStakerReward**(address staker, uint256 epoch) external returns (uint256 amount) | Parameter | Type | Description | | --------- |:-------:|:---------------------------------------------:| | `staker` | address | staker's address | | `epoch` | uin256 | which epoch is the staker claiming the reward | **Returns:**\ The staking reward amount claimed in wei.\\

[PreviousKyberHintHandler](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-kyberhinthandler)[<br>](https://docs.kyberswap.com/Legacy/api-abi/core-smart-contracts/api_abi-ikyberstaking)