Create priceFeed.js

blockchain_integration/pi_network/oracles/priceFeed.js

@@ -0,0 +1,28 @@
+// oracles/priceFeed.js
+
+const { ethers } = require("ethers");
+const { ChainlinkPriceFeedABI } = require("./abi/ChainlinkPriceFeedABI.json");
+
+// Replace with the appropriate network and price feed address
+const NETWORK = "mainnet"; // or "rinkeby", "ropsten", etc.
+const PRICE_FEED_ADDRESS = "0x5f4eC3Df9cbd43714fe2740f5e3616155c5B8419"; // ETH/USD price feed on mainnet
+
+class PriceFeed {
+    constructor() {
+        this.provider = new ethers.providers.InfuraProvider(NETWORK, "YOUR_INFURA_PROJECT_ID");
+        this.priceFeedContract = new ethers.Contract(PRICE_FEED_ADDRESS, ChainlinkPriceFeedABI, this.provider);
+    }
+
+    async getLatestPrice() {
+        try {
+            const price = await this.priceFeedContract.latestRoundData();
+            const latestPrice = price[1]; // price[1] contains the price
+            return ethers.utils.formatUnits(latestPrice, 8); // Chainlink price feeds return 8 decimal places
+        } catch (error) {
+            console.error("Error fetching price:", error);
+            throw error;
+        }
+    }
+}
+
+module.exports = PriceFeed;