AggregatorInterface API reference
AggregatorInterface
Interface for accessing data from an aggregator contract.
Provides methods to get the latest data and historical data for specific rounds.
latestAnswer
function latestAnswer() external view returns (int256)
Gets the latest answer from the aggregator.
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | int256 | int256 - The latest answer. |
latestTimestamp
function latestTimestamp() external view returns (uint256)
Gets the timestamp of the latest answer from the aggregator.
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | uint256 | uint256 - The timestamp of the latest answer. |
latestRound
function latestRound() external view returns (uint256)
Gets the latest round ID from the aggregator.
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | uint256 | uint256 - The latest round ID. |
getAnswer
function getAnswer(uint256 roundId) external view returns (int256)
Gets the answer for a specific round ID.
Parameters
| Name | Type | Description |
|---|---|---|
| roundId | uint256 | The round ID to get the answer for. |
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | int256 | int256 - The answer for the given round ID. |
getTimestamp
function getTimestamp(uint256 roundId) external view returns (uint256)
Gets the timestamp for a specific round ID.
Parameters
| Name | Type | Description |
|---|---|---|
| roundId | uint256 | The round ID to get the timestamp for. |
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | uint256 | uint256 - The timestamp for the given round ID. |
AnswerUpdated
event AnswerUpdated(int256 current, uint256 roundId, uint256 updatedAt)
Emitted when the answer is updated.
Parameters
| Name | Type | Description |
|---|---|---|
| current | int256 | The updated answer. |
| roundId | uint256 | The round ID for which the answer was updated. |
| updatedAt | uint256 | The timestamp when the answer was updated. |
NewRound
event NewRound(uint256 roundId, address startedBy, uint256 startedAt)
Emitted when a new round is started.
Parameters
| Name | Type | Description |
|---|---|---|
| roundId | uint256 | The round ID of the new round. |
| startedBy | address | The address of the account that started the round. |
| startedAt | uint256 | The timestamp when the round was started. |