interface IUniswapV3PoolDerivedStateContains view functions to provide information about the pool that is computed rather than stored on the blockchain. The functions here may have variable gas costs.
function observe(
uint32[] calldata secondsAgos
)
external
view
returns (
int56[] memory tickCumulatives,
uint160[] memory secondsPerLiquidityCumulativeX128s
)Returns the cumulative tick and liquidity as of each timestamp secondsAgo from the current block timestamp
To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick, you must call it with secondsAgos = [3600, 0].
Parameters:
secondsAgos
uint32[]
From how long ago each cumulative tick and liquidity value should be returned
Return values:
tickCumulatives
int56[]
Cumulative tick values as of each secondsAgos from the current block timestamp
secondsPerLiquidityCumulativeX128s
uint160[]
Cumulative seconds per liquidity-in-range value as of each secondsAgos from the current block
timestamp
Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range
Snapshots must only be compared to other snapshots, taken over a period for which a position existed. I.e., snapshots cannot be compared if a position is not held for the entire period between when the first snapshot is taken and the second snapshot is taken.
Parameters:
tickLower
int24
The lower tick of the range
tickUpper
int24
The upper tick of the range
Return values:
tickCumulativeInside
int56
The snapshot of the tick accumulator for the range
secondsPerLiquidityInsideX128
uint160
The snapshot of seconds per liquidity for the range
secondsInside
uint32
The snapshot of seconds per liquidity for the range
Last updated
function snapshotCumulativesInside(
int24 tickLower,
int24 tickUpper
)
external
view
returns (
int56 tickCumulativeInside,
uint160 secondsPerLiquidityInsideX128,
uint32 secondsInside
)