Somnia

dApps built on Somnia can leverage DIA oracles to access up-to-date asset price information.

DIA is a cross-chain oracle provider that sources granular market data from diverse exchanges, including CEXs and DEXs. Its data sourcing is thorough, enabling unparalleled transparency and customizability for resilient price feeds for 20,000+ assets. Its versatile data processing and delivery ensures adaptability and reliability for any decentralized application.

Oracle details

Chain	Address
Somnia Testnet	0x9206296ea3aee3e6bdc07f7aaef14dfcf33d865d

Oracle configuration

Pricing Methodology	MAIR
Deviation (%) & Refresh Frequency	0.5% and 120 seconds
Heartbeat	24h

Asset feeds

Asset Ticker	Adapter address	Asset Markets
USDT	0x67d2c2a87a17b7267a6dbb1a59575c0e9a1d1c3e	USDT markets
USDC	0x235266D5ca6f19F134421C49834C108b32C2124e	USDC markets
BTC	0x4803db1ca3A1DA49c3DB991e1c390321c20e1f21	BTC markets
ARB	0x74952812B6a9e4f826b2969C6D189c4425CBc19B	ARB markets
SOL	0xD5Ea6C434582F827303423dA21729bEa4F87D519	SOL markets

How to access data

Accessing the oracle on-chain (Solidity)

To consume price data, you’ll need to invoke the getValue method on the oracle contract which you can access through the DIA Oracle library or the interface. Below is an example of a contract consuming data from our oracle on Sepolia testnet. If you pass BTC/USD as the key, it will return the most recent price of BTC in USD with 8 decimal places (e.g. 9601458065403 is $96,014.58065403) along with the Unix timestamp of the last price update.

pragma solidity ^0.8.13;

interface IDIAOracleV2 {
    function getValue(string memory) external view returns (uint128, uint128);
}

contract DIAOracleV2Consumer{

    address immutable ORACLE = 0x9206296ea3aee3e6bdc07f7aaef14dfcf33d865d;

    function getPrice(string memory key) 
    external 
    view
    returns (
        uint128 latestPrice, 
        uint128 timestampOflatestPrice
    ) {
        (latestPrice, timestampOflatestPrice) =   
                 IDIAOracleV2(ORACLE).getValue(key); 
    }
}

See the full example here.

Adapter contracts

To consume price data from our oracle, you can use the adapter smart contract located at the adapter address for each asset. This will allow you to access the same methods on the AggregatorV3Interface such as getRoundData & latestRoundData. You can learn more here.

Support

For developer assistance, connect with the DIA team directly on Discord or Telegram.

Developers seeking other specialized, production-grade oracle with tailored price feeds and configurations can initiate the request by contacting the DIA BD Team via Telegram.