> For the complete documentation index, see [llms.txt](https://docs.mangrove.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mangrove.exchange/dev/strat-lib/technical-references/api-preferences/strats/src/strategies/vendor/aave/v3/contracts/interfaces/iaaveoracle.md).

# IAaveOracle

Defines the basic interface for the Aave Oracle

## BaseCurrencySet

```solidity
event BaseCurrencySet(address baseCurrency, uint256 baseCurrencyUnit)
```

*Emitted after the base currency is set*

### Parameters

| Name             | Type    | Description                                |
| ---------------- | ------- | ------------------------------------------ |
| baseCurrency     | address | The base currency of used for price quotes |
| baseCurrencyUnit | uint256 | The unit of the base currency              |

## AssetSourceUpdated

```solidity
event AssetSourceUpdated(address asset, address source)
```

*Emitted after the price source of an asset is updated*

### Parameters

| Name   | Type    | Description                   |
| ------ | ------- | ----------------------------- |
| asset  | address | The address of the asset      |
| source | address | The price source of the asset |

## FallbackOracleUpdated

```solidity
event FallbackOracleUpdated(address fallbackOracle)
```

*Emitted after the address of fallback oracle is updated*

### Parameters

| Name           | Type    | Description                        |
| -------------- | ------- | ---------------------------------- |
| fallbackOracle | address | The address of the fallback oracle |

## ADDRESSES\_PROVIDER

```solidity
function ADDRESSES_PROVIDER() external view returns (contract IPoolAddressesProvider)
```

Returns the PoolAddressesProvider

### Return Values

| Name | Type                            | Description                                       |
| ---- | ------------------------------- | ------------------------------------------------- |
| \[0] | contract IPoolAddressesProvider | The address of the PoolAddressesProvider contract |

## setAssetSources

```solidity
function setAssetSources(address[] assets, address[] sources) external
```

Sets or replaces price sources of assets

### Parameters

| Name    | Type       | Description                        |
| ------- | ---------- | ---------------------------------- |
| assets  | address\[] | The addresses of the assets        |
| sources | address\[] | The addresses of the price sources |

## setFallbackOracle

```solidity
function setFallbackOracle(address fallbackOracle) external
```

Sets the fallback oracle

### Parameters

| Name           | Type    | Description                        |
| -------------- | ------- | ---------------------------------- |
| fallbackOracle | address | The address of the fallback oracle |

## getAssetsPrices

```solidity
function getAssetsPrices(address[] assets) external view returns (uint256[])
```

Returns a list of prices from a list of assets addresses

### Parameters

| Name   | Type       | Description                  |
| ------ | ---------- | ---------------------------- |
| assets | address\[] | The list of assets addresses |

### Return Values

| Name | Type       | Description                    |
| ---- | ---------- | ------------------------------ |
| \[0] | uint256\[] | The prices of the given assets |

## getSourceOfAsset

```solidity
function getSourceOfAsset(address asset) external view returns (address)
```

Returns the address of the source for an asset address

### Parameters

| Name  | Type    | Description              |
| ----- | ------- | ------------------------ |
| asset | address | The address of the asset |

### Return Values

| Name | Type    | Description               |
| ---- | ------- | ------------------------- |
| \[0] | address | The address of the source |

## getFallbackOracle

```solidity
function getFallbackOracle() external view returns (address)
```

Returns the address of the fallback oracle

### Return Values

| Name | Type    | Description                        |
| ---- | ------- | ---------------------------------- |
| \[0] | address | The address of the fallback oracle |