> For the complete documentation index, see [llms.txt](https://docs.alkemi.network/earn-contracts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.alkemi.network/earn-contracts/docs/chainlink.md).

# ChainLink.sol

View Source: [contracts/ChainLink.sol](https://app.gitbook.com/s/-MQ0mmOovvt0G2zyJIgA/contracts/ChainLink.sol)

### Contract Members

**Constants & Variables**

```javascript
//internal members
mapping(address => contract AggregatorV3Interface) internal priceContractMapping;
uint256 internal constant expScale;
uint8 internal constant eighteen;

//public members
address public admin;
bool public paused;
address public wethAddressVerified;
address public wethAddressPublic;
contract AggregatorV3Interface public USDETHPriceFeed;
```

**Events**

```javascript
event assetAdded(address indexed assetAddress, address indexed priceFeedContract);
event assetRemoved(address indexed assetAddress);
event adminChanged(address indexed oldAdmin, address indexed newAdmin);
event verifiedWethAddressSet(address indexed wethAddressVerified);
event publicWethAddressSet(address indexed wethAddressPublic);
event contractPausedOrUnpaused(bool  currentStatus);
```

### Modifiers

* onlyAdmin

#### onlyAdmin

```javascript
modifier onlyAdmin() internal
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

### Functions

* addAsset(address assetAddress, address priceFeedContract)
* removeAsset(address assetAddress)
* changeAdmin(address newAdmin)
* setWethAddressVerified(address \_wethAddressVerified)
* setWethAddressPublic(address \_wethAddressPublic)
* togglePause()
* getAssetPrice(address asset)
* ()

#### addAsset

```javascript
function addAsset(address assetAddress, address priceFeedContract) public nonpayable onlyAdmin
```

**Arguments**

| Name              | Type    | Description |
| ----------------- | ------- | ----------- |
| assetAddress      | address |             |
| priceFeedContract | address |             |

#### removeAsset

```javascript
function removeAsset(address assetAddress) public nonpayable onlyAdmin
```

**Arguments**

| Name         | Type    | Description |
| ------------ | ------- | ----------- |
| assetAddress | address |             |

#### changeAdmin

```javascript
function changeAdmin(address newAdmin) public nonpayable onlyAdmin
```

**Arguments**

| Name     | Type    | Description |
| -------- | ------- | ----------- |
| newAdmin | address |             |

#### setWethAddressVerified

```javascript
function setWethAddressVerified(address _wethAddressVerified) public nonpayable onlyAdmin
```

**Arguments**

| Name                  | Type    | Description |
| --------------------- | ------- | ----------- |
| \_wethAddressVerified | address |             |

#### setWethAddressPublic

```javascript
function setWethAddressPublic(address _wethAddressPublic) public nonpayable onlyAdmin
```

**Arguments**

| Name                | Type    | Description |
| ------------------- | ------- | ----------- |
| \_wethAddressPublic | address |             |

#### togglePause

```javascript
function togglePause() public nonpayable onlyAdmin
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

#### getAssetPrice

```javascript
function getAssetPrice(address asset) public view
returns(uint256, uint8)
```

**Arguments**

| Name  | Type    | Description |
| ----- | ------- | ----------- |
| asset | address |             |

####

```javascript
function () public payable
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |