Price Aggregator

Contains the Library and the Facet required to pull information on token prices in Chainlink.

• ChainLinkAggFacet

• ChainLinkAggLib contains functions that help:

  • isTokenSupported checks if a token is supported and has a pair aggregator

  • aggregatorFor grabs the ChainLink Aggregator address to check if a token pair is supported

PriceAggFacet

Contains helper functions that:

• getValueFor calculates the value of a source token amount into a destination token

• priceFor calculates a price from Compound. If price isn't found from compound, then it tries to retrieve it from ChainLink

• isCToken checks if a token is a cToken and returns the address of the token if true

• compoundPriceFor retrieves the price of a source token in destination token from Compound

• chainlinkPriceFor retrieves the price of a source token in destination token from ChainLink

PriceAggLib

Implements both the valueFor and priceFor functions to retrieve both values and prices of a source token to a destination token.