Migrate from Chainlink

How the adapter works

Each adapter instance wraps a single DIA oracle and one asset key (e.g. BTC/USD). When your contract calls latestRoundData(), the adapter reads the latest value from DIA’s oracle via getValue() and maps it onto Chainlink’s round format:

answer: the latest DIA price, returned with 18 decimals by default.
updatedAt: the timestamp of DIA’s most recent update.
roundId : set to the current block.number.

Before and after

In practice, only the feed address changes.

import {AggregatorV3Interface} from
    "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

contract MyConsumer {
    AggregatorV3Interface internal priceFeed =
        AggregatorV3Interface(0xChainlinkFeedAddress);

    function getLatestPrice() public view returns (int256) {
        (, int256 answer, , , uint256 updatedAt) = priceFeed.latestRoundData();
        require(updatedAt != 0, "stale price");
        return answer; // 8 decimals
    }
}

solidity

import {AggregatorV3Interface} from
    "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

contract MyConsumer {
    // Same interface — only the address points to the DIA adapter
    AggregatorV3Interface internal priceFeed =
        AggregatorV3Interface(0xDiaAdapterAddress);

    function getLatestPrice() public view returns (int256) {
        (, int256 answer, , , uint256 updatedAt) = priceFeed.latestRoundData();
        require(updatedAt != 0, "stale price");
        return answer; // 8 decimals
    }
}

Migrate in three steps

Get the DIA oracle address and asset key

From your network’s page in the chain-specific guides, copy the DIA oracle contract address and the asset key you need (e.g. BTC/USD).

Deploy or obtain the adapter

Deploy DiaAssetSpecificCallingConvention(diaOracleAddress, description, pairKey). The repo ships a Hardhat deploy script (scripts/deployAdapter.ts). One adapter is deployed per asset.

Swap the address

Replace the Chainlink feed address in your contract with the adapter address. No other code changes are required.

Availability

The adapter works on any network where a DIA oracle is deployed (see the supported chains). Because it is asset-specific, a separate adapter is deployed for each price feed you need.

How-to Guides

Chain-specific Guides

Methodologies

General Guides

Resources

Migrate from Chainlink

How the adapter works

Before and after

Migrate in three steps

Availability

Reference

Chainlink Adapter

​How the adapter works

​Before and after

​Migrate in three steps

​Availability

​Reference

Chainlink Adapter

How the adapter works

Before and after

Migrate in three steps

Availability

Reference