Investigate oracle interface

[defispartan]

Investigate why the Chainlink EACAggregator mappings are not working for some assets, and see if there is a general workaround:

wsteth, reth, cbeth, wbtc for ethereum v3
wsteth for arbitrum v3
savax on avalanche
none on optimism/polygon

{
  reserves(first: 20,
  	where:{price_:{priceInEth:0}}) {
    id
    symbol
    price {
      id
      priceInEth
    }
  }
}

[jclagache]

Concerns Synchronicity Price Adapters used as asset sources in AaveOracle.
There is no Chainlink price feed for these adapters. The Aave V3 subgraph seems to rely on the AnswerUpdated(indexed int256,indexed uint256,uint256) events of the AccessControlledAggregator contracts to populate its prices.

[defispartan]

Other examples include WBTC, wstETH, and WETH on Arbitrum V3

{
  reserves(where: {symbol_in: ["WETH", "WBTC", "wstETH"]}) {
    symbol
    price {
      priceInEth
    }
  }
}