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Previewer (read-only)
The Previewer is a read-only smart contract specifically engineered for Exactly's web application. Its role is to gather comprehensive on-chain data pertaining to Exactly's markets, and user accounts while minimizing the amount of necessary requests, thus enhancing performance. Moreover, it abstracts the complexities of the protocol from the front-end interface by directly returning oracle prices, counting the amount of deposits and borrows per market, and providing the current snapshot of any account being queried.
Please be advised that the
Previewer contract has not undergone a formal security audit. As such, we strongly discourage integrations involving this contract since it is exclusively intended for read-only purposes by the Exactly Web App. Using unaudited contracts for other purposes may expose users to potential security risks or unexpected behavior.function auditor() external view returns (contract Auditor)
Returns
Name | Type | Description |
|---|---|---|
auditor | contract Auditor | Auditor |
function basePriceFeed() external view returns (contract IPriceFeed)
Returns
Name | Type | Description |
|---|---|---|
basePriceFeed | contract IPriceFeed | BasePriceFeed |
function exactly(address account) external view returns (struct Previewer.MarketAccount[] data)
Function to get a certain account extended data.
Parameters
Name | Type | Description |
|---|---|---|
account | address | address which the extended data will be calculated. |
Returns
Name | Type | Description |
|---|---|---|
data | Previewer.MarketAccount[] | extended accountability of all markets for the account. |
function previewBorrowAtAllMaturities(contract Market market, uint256 assets) external view returns (struct Previewer.FixedPreview[] previews)
Gets the assets plus fees offered by all VALID maturities when borrowing a certain amount.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
assets | uint256 | amount of assets that will be borrowed. |
Returns
Name | Type | Description |
|---|---|---|
previews | Previewer.FixedPreview[] | array containing amount plus yield that account will receive after each maturity. |
function previewBorrowAtMaturity(contract Market market, uint256 maturity, uint256 assets) external view returns (struct Previewer.FixedPreview)
Gets the amount plus fees to be repaid at maturity when borrowing certain amount of assets.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
maturity | uint256 | maturity date/pool where the assets will be borrowed. |
assets | uint256 | amount of assets that will be borrowed. |
Returns
Name | Type | Description |
|---|---|---|
positionAssets | Previewer.FixedPreview | positionAssets amount plus fees that the depositor will repay at maturity. |
function previewDepositAtAllMaturities(contract Market market, uint256 assets) external view returns (struct Previewer.FixedPreview[] previews)
Gets the assets plus yield offered by all VALID maturities when depositing a certain amount.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
assets | uint256 | amount of assets that will be deposited. |
Returns
Name | Type | Description |
|---|---|---|
previews | Previewer.FixedPreview[] | array containing amount plus yield that account will receive after each maturity. |
function previewDepositAtMaturity(contract Market market, uint256 maturity, uint256 assets) external view returns (struct Previewer.FixedPreview)
Gets the assets plus yield offered by a maturity when depositing a certain amount.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
maturity | uint256 | maturity date/pool where the assets will be deposited. |
assets | uint256 | amount of assets that will be deposited. |
Returns
Name | Type | Description |
|---|---|---|
assets | Previewer.FixedPreview | amount plus yield that the depositor will receive after maturity. |
function previewRepayAtMaturity(contract Market market, uint256 maturity, uint256 positionAssets, address borrower) external view returns (struct Previewer.FixedPreview)
Gets the assets that will be repaid when repaying a certain amount at the current maturity.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
maturity | uint256 | maturity date/pool where the assets will be repaid. |
positionAssets | uint256 | amount of assets that will be subtracted from the position. |
borrower | address | address of the borrower. |
Returns
Name | Type | Description |
|---|---|---|
repayAssets | Previewer.FixedPreview | repayAssets amount of assets that will be repaid. |
function previewWithdrawAtMaturity(contract Market market, uint256 maturity, uint256 positionAssets, address owner) external view returns (struct Previewer.FixedPreview)
Gets the amount to be withdrawn for a certain positionAmount of assets at maturity.
Parameters
Name | Type | Description |
|---|---|---|
market | contract Market | address of the market. |
maturity | uint256 | maturity date/pool where the assets will be withdrawn. |
positionAssets | uint256 | amount of assets that will be tried to withdraw. |
owner | address | owner of the fixed deposit position |
Returns
Name | Type | Description |
|---|---|---|
withdrawAssets | Previewer.FixedPreview | withdrawAssets amount that will be withdrawn. |
Last modified 2mo ago