Price Oracle
Throughout the Aave Protocol, we require reliable, up to date, and secure price feeds. Our proxy price provider contract provides this capability and works by:
Aave market
- 1.First checking for a price from a Chainlink aggregator.
- 2.
- 1.In the future, Aave governance mechanisms will manage the selection of sources and the fallback price oracle.
Always get the latest price oracle address by calling
getPriceOracle() on the LendingPoolAddressProvider contract.function getAssetPrice(address _asset) public view returns(uint256)Returns the price of the supported
_asset in ETH wei units.Parameter Name | Type | Description |
|---|---|---|
_asset | address |
function getAssetsPrices(address[] calldata _assets) external view returns(uint256[] memory)Returns any array of prices in ETH wei units.
Parameter Name | Type | Description |
|---|---|---|
_assets | address[ ] |
function getSourceOfAsset(address _asset) external view returns(uint256)Returns the address of the price source for
_asset.Parameter Name | Type | Description |
|---|---|---|
_asset | address |
function getFallbackOracle() external view returns(uint256)Returns the address of the fallback oracle.
[ { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" }, { "internalType": "address", "name": "fallbackOracle", "type": "address" }, { "internalType": "address", "name": "weth", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "asset", "type": "address" }, { "indexed": true, "internalType": "address", "name": "source", "type": "address" } ], "name": "AssetSourceUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "FallbackOracleUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "weth", "type": "address" } ], "name": "WethSet", "type": "event" }, { "inputs": [], "name": "WETH", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getAssetPrice", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" } ], "name": "getAssetsPrices", "outputs": [ { "internalType": "uint256[]", "name": "", "type": "uint256[]" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "getFallbackOracle", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getSourceOfAsset", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" } ], "name": "setAssetSources", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "setFallbackOracle", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }][ { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" }, { "internalType": "address", "name": "fallbackOracle", "type": "address" }, { "internalType": "address", "name": "weth", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "asset", "type": "address" }, { "indexed": true, "internalType": "address", "name": "source", "type": "address" } ], "name": "AssetSourceUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "FallbackOracleUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "weth", "type": "address" } ], "name": "WethSet", "type": "event" }, { "inputs": [], "name": "WETH", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getAssetPrice", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" } ], "name": "getAssetsPrices", "outputs": [ { "internalType": "uint256[]", "name": "", "type": "uint256[]" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "getFallbackOracle", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getSourceOfAsset", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" } ], "name": "setAssetSources", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "setFallbackOracle", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }][ { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" }, { "internalType": "address", "name": "fallbackOracle", "type": "address" }, { "internalType": "address", "name": "baseCurrency", "type": "address" }, { "internalType": "uint256", "name": "baseCurrencyUnit", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "asset", "type": "address" }, { "indexed": true, "internalType": "address", "name": "source", "type": "address" } ], "name": "AssetSourceUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "baseCurrency", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "baseCurrencyUnit", "type": "uint256" } ], "name": "BaseCurrencySet", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "FallbackOracleUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "inputs": [], "name": "BASE_CURRENCY", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "BASE_CURRENCY_UNIT", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getAssetPrice", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" } ], "name": "getAssetsPrices", "outputs": [ { "internalType": "uint256[]", "name": "", "type": "uint256[]" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "getFallbackOracle", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "asset", "type": "address" } ], "name": "getSourceOfAsset", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address[]", "name": "assets", "type": "address[]" }, { "internalType": "address[]", "name": "sources", "type": "address[]" } ], "name": "setAssetSources", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "fallbackOracle", "type": "address" } ], "name": "setFallbackOracle", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }]
Last modified 6mo ago