# BorrowLogic

{% hint style="info" %}
This contract tracks **borrow lifecycle events**:

* Borrowing liquidity
* Repaying debt
* Switching between stable/variable interest rate
* Rebalancing rates
* Debt tracking in isolation mode

{% endhint %}

### Events 

* **Borrow(reserve, user, onBehalfOf, amount, interestRateMode, borrowRate, referralCode)**\
  Emitted when a user **borrows an asset** from the protocol.
  * `reserve`: Asset being borrowed.
  * `user`: Address initiating the borrow.
  * `onBehalfOf`: Address that receives the debt.
  * `amount`: Amount borrowed.
  * `interestRateMode`: Type of interest rate chosen (stable or variable).
  * `borrowRate`: Rate applied at the moment of borrowing.
  * `referralCode`: Referral code for partner integrations.

***

* **IsolationModeTotalDebtUpdated(asset, totalDebt)**\
  Emitted when the **total debt** of an asset in **isolation mode** changes.
  * `asset`: Address of the reserve in isolation mode.
  * `totalDebt`: Updated total debt for this asset.

***

* **RebalanceStableBorrowRate(reserve, user)**\
  Emitted when a user’s **stable borrow rate** is rebalanced by the protocol.
  * `reserve`: Asset where the rebalance occurs.
  * `user`: Address of the borrower whose stable rate is adjusted.

***

* **Repay(reserve, user, repayer, amount, useATokens)**\
  Emitted when a **loan is repaid**.
  * `reserve`: Asset being repaid.
  * `user`: Borrower whose debt is being reduced.
  * `repayer`: Address that actually performs the repayment (can be the user or another address).
  * `amount`: Amount repaid.
  * `useATokens`: Whether aTokens were used to repay the debt directly.

***

* **SwapBorrowRateMode(reserve, user, interestRateMode)**\
  Emitted when a borrower **switches their interest rate mode**.
  * `reserve`: Asset where the swap happens.
  * `user`: Borrower changing the mode.
  * `interestRateMode`: New interest rate mode (stable or variable).

```
[
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "reserve", "type": "address" },
      { "indexed": false, "internalType": "address", "name": "user", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "onBehalfOf", "type": "address" },
      { "indexed": false, "internalType": "uint256", "name": "amount", "type": "uint256" },
      { "indexed": false, "internalType": "enum DataTypes.InterestRateMode", "name": "interestRateMode", "type": "uint8" },
      { "indexed": false, "internalType": "uint256", "name": "borrowRate", "type": "uint256" },
      { "indexed": true, "internalType": "uint16", "name": "referralCode", "type": "uint16" }
    ],
    "name": "Borrow",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "asset", "type": "address" },
      { "indexed": false, "internalType": "uint256", "name": "totalDebt", "type": "uint256" }
    ],
    "name": "IsolationModeTotalDebtUpdated",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "reserve", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "user", "type": "address" }
    ],
    "name": "RebalanceStableBorrowRate",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "reserve", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "user", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "repayer", "type": "address" },
      { "indexed": false, "internalType": "uint256", "name": "amount", "type": "uint256" },
      { "indexed": false, "internalType": "bool", "name": "useATokens", "type": "bool" }
    ],
    "name": "Repay",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "reserve", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "user", "type": "address" },
      { "indexed": false, "internalType": "enum DataTypes.InterestRateMode", "name": "interestRateMode", "type": "uint8" }
    ],
    "name": "SwapBorrowRateMode",
    "type": "event"
  }
]

```


---

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