Add Prices Oracle to get the historical price list

protofire / makerdao-scd-subgraph

MakerDAO Single-Collateral Dai subgraph

https://thegraph.com/explorer/subgraph/protofire/makerdao

GNU Lesser General Public License v3.0

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Add Prices Oracle to get the historical price list #13

Open cristianmalfesi opened 5 years ago

cristianmalfesi commented 5 years ago

Estimated time: 4pt Do a research about the best option to get the historical prices list. Check what are the oracles of prices Implement the feature to get the historical prices into the MakerDAO subgraph

Acceptance Criteria

As user browse the TheGraph explorer: https://thegraph.com/explorer/subgraph/protofire/makerdao

Run the a query like:

{
ethPrices(last: 15){
timestamp
block
value
}
}

Check that get the list of prices per time or per event

sistemico commented 5 years ago

Task blocked until the fix https://github.com/graphprotocol/graph-cli/pull/276 is released in the outcoming version of @graphprotocol/graph-cli

sistemico commented 5 years ago

Finally, both ETH and MKR prices are stored in CDP entity and on each action alongside the other entity's fields.