> For the complete documentation index, see [llms.txt](https://docs.replete.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.replete.fi/developers/how-to-repay.md).

# How to Repay

{% hint style="danger" %}
When repaying take care to input the correct data. Make sure you are repaying for the correct wallet.
{% endhint %}

You can repay any supported asset and close borrow positions across any chain through Replete by interacting with [RepletePool](/contracts/repletepool.md).

Repaying an asset is often straight forward, where you supply the borrowed asset to repay debt positions. However, if interacting with [RepletePool](/contracts/repletepool.md), there are a few things to note, for example if there are excess assets provided for the repayment:

* The default behavior is that excess assets are supplied to the pool on behalf of `onBehalfOf`. Allows for the user to withdraw the asset on any chain in another transaction.
* `transferExtraAssets` is an option to allow for transferring the excess supplied assets to `onBehalfOf` on Arbitrum instead of doing the default behavior above.

### From Any Chain

{% hint style="warning" %}
When repaying, ensure the [RepletePool](/contracts/repletepool.md) contract has enough allowance to spend funds on behalf of `msg.sender` for the amount being repaid.
{% endhint %}

To repay native token (if supported) through [RepletePool](/contracts/repletepool.md), set the `asset` parameter as `RepletePool.ETH_ADDRESS()` and set `amount` as the intended repay amount. Ensure that `msg.value` covers the bridge transfer fee too. `msg.value` should equal `amount` + `bridgeFee`.

If supplying native is not supported, the function will revert with error `Replete_UnsupportedAsset(address asset)`

#### Interface

#### Stargate v1

{% code fullWidth="true" %}

```solidity
 /**
  * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
  * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
  * @param asset The local address of the borrowed underlying asset
  * @param amount The amount to repay in local asset decimals
  * @param interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
  * @param onBehalfOf The remote address of the user to repay for on Pool Chain
  * @param transferExtraAssets Option to enable transferring the unbridged assets to `onBehalfOf`
  *  on Pool Chain instead of doing the default behavior (extra assets are supplied to `onBehalOf`).
  * @param stgParams Stargate v1 related bridge parameters
  */
 function repay(
     address asset,
     uint256 amount,
     uint8 interestRateMode,
     address onBehalfOf,
     bool transferExtraAssets,
     StargateSupplyParams calldata stgParams
 ) external payable;
```

{% endcode %}

#### Stargate v2

{% code fullWidth="true" %}

```solidity
 /**
  * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
  * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
  * @param asset The local address of the borrowed underlying asset
  * @param amount The amount to repay in local asset decimals
  * @param interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
  * @param onBehalfOf The remote address of the user to repay for on Pool Chain
  * @param transferExtraAssets Option to enable transferring the unbridged assets to `onBehalfOf`
  *  on Pool Chain instead of doing the default behavior (extra assets are supplied to `onBehalOf`).
  * @param stgParams Stargate v2 related bridge parameters
  */
 function repay(
     address asset,
     uint256 amount,
     uint8 interestRateMode,
     address onBehalfOf,
     bool transferExtraAssets,
     StargateV2SupplyParams calldata stgParams
 ) external payable returns (Ticket memory);
```

{% endcode %}

#### Example

#### Stargate v1

{% code fullWidth="true" %}

```solidity
RepletePool.repay{value: bridgeFee}({
    asset: address(DAI),                           // local chain DAI address
    amount: 1337 * 1e18,                           // repay 1337 DAI
    interestRateMode: 2,                           // variable debt is being repaid
    onBehalfOf: msg.sender,                        // who is this repayment for
    transferExtraAssets: false,                    // disable the "transferExtraAssets" option
    referralCode: 0,                               // referral code; you can safely set to 0
    stgParams: StargateSupplyParams({              // ~~ Stargate v1 related parameters ~~
        dstGasForCall: 500_000,                    // 500k gas for the destination tx
        dstNativeAmount: 0,                        // native gas airdrop in the destination tx
        dstNativeAddr: RepletePool.destAddress(),  // {BridgeReceiver} address on Pool Chain
        srcPoolId: srcPoolId,                      // source Stargate v1 pool ID
        dstPoolId: dstPoolId,                      // destination Stargate v1 pool ID
        refundAddress: payable(msg.sender),        // refund address
        minAmountLD: 1337 * 1e18                   // set max slippage amount
    })
});
```

{% endcode %}

#### Stargate v2

{% code fullWidth="true" %}

```solidity
RepletePool.repay{value: bridgeFee}({
    asset: address(DAI),                     // local chain DAI address
    amount: 1337 * 1e18,                     // repay 1337 DAI
    interestRateMode: 2,                     // variable debt is being repaid
    onBehalfOf: msg.sender,                  // who is this repayment for
    transferExtraAssets: false,              // disable the "transferExtraAssets" option
    referralCode: 0,                         // referral code; you can safely set to 0
    stgParams: StargateV2SupplyParams({      // ~~ Stargate v2 related parameters ~~
        router: stargateDAIPool,             // Stargate v2 DAI pool address
        extraOptions: extraOptions,          // LZv2 composed message execution options
        oftCmd: "",                          // unused for Stargate taxi transactions 
        refundAddress: payable(msg.sender),  // refund address
        minAmountLD: 1337 * 1e18             // set max slippage amount  
    })
});
```

{% endcode %}