ChainlinkCalculator
Last updated
Last updated
A helper contract for interactions with https://docs.chain.link
Calculates price of token relative to oracle unit (ETH or USD)
Parameters:
Name | Type | Description |
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Return Values:
Name | Type | Description |
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Calculates price of token A relative to token B. Note that order is important
Parameters:
Return Values:
Name | Type | Description |
---|---|---|
Name | Type | Description |
---|---|---|
oracle
contract AggregatorV3Interface
concatenated inverse flag and spread. Lowest 254 bits specify spread amount. Spread is scaled by 1e9, i.e. 101% = 1.01e9, 99% = 0.99e9. Highest bit is set when oracle price should be inverted, e.g. for DAI-ETH oracle, inverse=false means that we request DAI price in ETH and inverse=true means that we request ETH price in DAI
inverseAndSpread
uint256
amount
uint256
Amount
uint256
spread oracle price
oracle1
contract AggregatorV3Interface
oracle2
contract AggregatorV3Interface
spread
uint256
decimalsScale
int256
amount
uint256
Result
uint256
Token A relative price times amount