Chainlink Data Feeds

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
 
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";
 
/**
 * THIS IS AN EXAMPLE CONTRACT THAT USES HARDCODED
 * VALUES FOR CLARITY.
 * THIS IS AN EXAMPLE CONTRACT THAT USES UN-AUDITED CODE.
 * DO NOT USE THIS CODE IN PRODUCTION.
 */
 
 
contract DataConsumerV3 {
    AggregatorV3Interface internal dataFeed;
 
    /**
     * Network: Avalanche Primary Network
     * Aggregator: AVAX/USD
     * Address: 0x0A77230d17318075983913bC2145DB16C7366156
     */
    constructor() {
        dataFeed = AggregatorV3Interface(
            0x0A77230d17318075983913bC2145DB16C7366156
        );
    }
 
    /**
     * Returns the latest answer.
     */
    function getChainlinkDataFeedLatestAnswer() public view returns (int) {
        // prettier-ignore
        (
            /* uint80 roundID */,
            int answer,
            /*uint startedAt*/,
            /*uint timeStamp*/,
            /*uint80 answeredInRound*/
        ) = dataFeed.latestRoundData();
        return answer;
    }
}