CDR #050: Qoda Finance | Price Feed on Moonbeam

Proposals CDRs - Custom Delivery Requests
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Qoda Finance

Qoda Finance is a lending/borrowing protocol that iterates on the current generation of money markets with 1) Orderbook-based matching mechanism, 2) Fixed interest rates, and 3) segregation collateral tier assets from market tier assets.

Feed Usage

Data Type: Price feed
Use case: The feed will be used to price collateral value

Specifications

Delivery Method: Moonbeam
Update Mechanism: Deviation + Time based
Methodology: Moving Average With Interquartile Range
Frequency: 1hour + 0.5% deviation
Sources: All available markets
Pairs: ASTR, ACA, D2O

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Thank you for requesting a data feed via DIA CDR. We confirm the CDR specifications were requested correctly. Find the oracle information below:

Oracle

The oracle is deployed and can be accessed here.

You can query for assets by calling the read function getValue() with parameters such as “BTC/USD”. It will return two values:

  1. The price of the asset queried with 8 decimals
  2. The unix timestamp of the last update

You can see Solidity and Vyper code integration examples here or use a dedicated DIA oracles integration library described in detail here.

Funding

Each deployed oracle has a separate gas wallet which is the only entity allowed to update oracle values based on selected parameters. To find out more information on how it works, visit the following link.

Please make sure to top up the gas wallet, as we only put in some gas to deploy and start the oracle.

Gas Wallet address: address

Markets

You can view the markets included for each feed by pressing on a link to DIA App in the deployed assets list:

  1. Astar-0x0000000000000000000000000000000000000000
  2. Acala-Token:ACA
  3. Moonbeam-0xc806B0600cbAfA0B197562a9F7e3B9856866E9bF

Note: DIA uses Blockchain-Address querying formatting to ensure asset selection precision (token symbols might duplicate)

You can also query current asset prices and find other market information on the asset by using the DIA API as described here.

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The d2O fair value oracle is live: DAMFinanceOracle | Address 0x9317007bf8968fbf1bdbebd6ab9c47c8faa5283a | Moonbeam

It is structured differently from the standard oracle contract. To get the latest fair price of d2O with 8 decimals, you need to call getPrice() with parameter USDC. This will return the price according to the formula of d2O, considering both Moonbeam and Ethereum collaterals.

The collateral ratio itself (with 8 decimals) can be accessed with read function collateralRatio() and parameter USDC. d2OTotalSupply() and usdcBalance() work similarly.

The current price of USDC itself can be accessed as usual with a call of getValue() with parameter USDC and will return the price with 8 decimals together with the timestamp of the last update.

Please make sure to keep the gas wallet always funded: 0xf48e1A762A24a92aB247B4C06C91e59787087aAf