AggregatorV3Interface

Title: AggregatorV3Interface

Chainlink price feed interface.

Standard interface for Chainlink oracles. See https://docs.chain.link/data-feeds.

Functions

decimals

Returns the number of decimals in the price.

function decimals() external view returns (uint8);

description

Returns a human-readable description of the feed.

function description() external view returns (string memory);

version

Returns the feed version number.

function version() external view returns (uint256);

getRoundData

Returns historical round data.

function getRoundData(
    uint80 _roundId
)
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

Parameters

Name	Type	Description
`_roundId`	`uint80`	The round ID to query.

Returns

Name	Type	Description
`roundId`	`uint80`	The round ID.
`answer`	`int256`	The price answer.
`startedAt`	`uint256`	Timestamp when round started.
`updatedAt`	`uint256`	Timestamp of last update.
`answeredInRound`	`uint80`	The round in which answer was computed.

latestRoundData

Returns the latest round data.

function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);