ChainlinkOracle

ChainlinkOracle

This oracle fetches prices of assets from the Chainlink oracle.

Solidity API

struct TokenConfig {
  address asset;
  address feed;
  uint256 maxStalePeriod;
}

NATIVE_TOKEN_ADDR

Set this as asset address for native token on each chain. This is the underlying address for vBNB on BNB chain or an underlying asset for a native market on any chain.

address NATIVE_TOKEN_ADDR

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prices

Manually set an override price, useful under extenuating conditions such as price feed failure

mapping(address => uint256) prices

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tokenConfigs

Token config by assets

mapping(address => struct ChainlinkOracle.TokenConfig) tokenConfigs

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constructor

Constructor for the implementation contract.

constructor() public

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initialize

Initializes the owner of the contract

function initialize(address accessControlManager_) external

Parameters

Name	Type	Description
accessControlManager_	address	Address of the access control manager contract

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setDirectPrice

Manually set the price of a given asset

function setDirectPrice(address asset, uint256 price) external

Parameters

Name	Type	Description
asset	address	Asset address
price	uint256	Asset price in 18 decimals

📅 Events

• Emits PricePosted event on succesfully setup of asset price

⛔️ Access Requirements

• Only Governance

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setTokenConfigs

Add multiple token configs at the same time

function setTokenConfigs(struct ChainlinkOracle.TokenConfig[] tokenConfigs_) external

Parameters

Name	Type	Description
tokenConfigs_	struct ChainlinkOracle.TokenConfig[]	config array

⛔️ Access Requirements

• Only Governance

❌ Errors

• Zero length error thrown, if length of the array in parameter is 0

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setTokenConfig

Add single token config. asset & feed cannot be null addresses and maxStalePeriod must be positive

function setTokenConfig(struct ChainlinkOracle.TokenConfig tokenConfig) public

Parameters

Name	Type	Description
tokenConfig	struct ChainlinkOracle.TokenConfig	Token config struct

📅 Events

• Emits TokenConfigAdded event on succesfully setting of the token config

⛔️ Access Requirements

• Only Governance

❌ Errors

• NotNullAddress error is thrown if asset address is null

• NotNullAddress error is thrown if token feed address is null

• Range error is thrown if maxStale period of token is not greater than zero

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getPrice

Gets the price of a asset from the chainlink oracle

function getPrice(address asset) public view virtual returns (uint256)

Parameters

Name	Type	Description
asset	address	Address of the asset

Return Values

Name	Type	Description
[0]	uint256	Price in USD from Chainlink or a manually set price for the asset

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