AaveOracle

AaveOracle

Contract to get asset prices, manage price sources and update the fallback oracle.

Spark Protocol uses Chainlink Aggregators as the source of all asset prices.

In the future we will have redundancy with multiple oracle providers.

Methods

View

getAssetPrice

function getAssetPrice(address asset)

Returns the price of the supported asset in BASE_CURRENCY of the Spark Protocol Market in wei.

Return Value

Type	Description
uint256	Price in BASE_CURRENCY of the Spark market in wei.

getAssetsPrices

function getAssetsPrices(address[] calldata assets)

Returns the prices of the supported assets in BASE_CURRENCY of the Spark Market. All prices are in wei.

Call Params

Name	Type	Description
assets	address[]	The addresses of the assets for which price is being queried.

Return Value

Type	Description
uint256[]	Prices in BASE_CURRENCY of the Spark market in wei.

getSourceOfAsset

function getSourceOfAsset(address asset)

Returns the address of the price source for asset.

getFallbackOracle

function getFallbackOracle()

Returns the address of the fallback oracle.

Write

setAssetSources

function setAssetSources(address[] calldata assets, address[] calldata sources)

Sets the price source for given list of assets.

This method can be called only by POOL_ADMIN or ASSET_LISTING_ADMIN. Check ACLManager for details on system roles.

Call Params

Name	Type	Description
assets	address[]	The addresses of the assets for which source is being set.
sources	address[]	The address of the source of each asset. Length of assets and sources array should be same.

setFallbackOracle

function setFallbackOracle(address fallbackOracle)

Sets/updates the fallback oracle.

This method can be called only by POOL_ADMINorASSET_LISTING_ADMIN. Check ACLManager for details on system roles.

Call Params

Name	Type	Description
fallbackOracle	address	The address of the fallback oracle.

ABI

AaveOracle ABI

[
    {
        "inputs": [
            {
                "internalType": "contract IPoolAddressesProvider",
                "name": "provider",
                "type": "address"
            },
            {
                "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"
    },
    {
        "inputs": [],
        "name": "ADDRESSES_PROVIDER",
        "outputs": [
            {
                "internalType": "contract IPoolAddressesProvider",
                "name": "",
                "type": "address"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "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": [
            {
                "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"
    }
]