# TermPriceConsumerV3.sol

## TermPriceConsumerV3

This contract is a centralized price oracle contract that feeds pricing data to all Term Repos

*This contract operates at the protocol level and governs all instances of a Term Repo*

### DEVOPS\_ROLE

```solidity
bytes32 DEVOPS_ROLE
```

### priceFeeds

```solidity
mapping(address => contract AggregatorV3Interface) priceFeeds
```

### constructor

```solidity
constructor() public
```

### initialize

```solidity
function initialize(address devopsWallet_) external
```

Intializes with an array of token addresses, followed with an array of Chainlink aggregator addresses <https://docs.chain.link/docs/ethereum-addresses/>

### addNewTokenPriceFeed

```solidity
function addNewTokenPriceFeed(address token, address tokenPriceAggregator) external
```

#### Parameters

| Name                 | Type    | Description                                              |
| -------------------- | ------- | -------------------------------------------------------- |
| token                | address | The address of the token to add a price feed for         |
| tokenPriceAggregator | address | The proxy price aggregator address for token to be added |

### removeTokenPriceFeed

```solidity
function removeTokenPriceFeed(address token) external
```

#### Parameters

| Name  | Type    | Description                                                   |
| ----- | ------- | ------------------------------------------------------------- |
| token | address | The address of the token whose price feed needs to be removed |

### usdValueOfTokens

```solidity
function usdValueOfTokens(address token, uint256 amount) external view returns (struct ExponentialNoError.Exp)
```

A function to return current market value given a token address and an amount

#### Parameters

| Name   | Type    | Description                       |
| ------ | ------- | --------------------------------- |
| token  | address | The address of the token to query |
| amount | uint256 | The amount tokens to value        |

#### Return Values

| Name | Type                          | Description                                                        |
| ---- | ----------------------------- | ------------------------------------------------------------------ |
| \[0] | struct ExponentialNoError.Exp | The current market value of tokens at the specified amount, in USD |

### \_getLatestPrice

```solidity
function _getLatestPrice(address token) internal view returns (int256)
```

#### Return Values

| Name | Type   | Description                            |
| ---- | ------ | -------------------------------------- |
| \[0] | int256 | The latest price from price aggregator |

### \_getDecimals

```solidity
function _getDecimals(address token) internal view returns (uint8)
```

#### Return Values

| Name | Type  | Description                      |
| ---- | ----- | -------------------------------- |
| \[0] | uint8 | The decimal places in price feed |

### \_authorizeUpgrade

```solidity
function _authorizeUpgrade(address) internal view
```

*required override by the OpenZeppelin UUPS module*


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