kode backend dan frontend untuk fitur Konversi Mata Uang & Swap Kripto di PiBukaHub.

App.js

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+import ConvertPi from "./ConvertPi";
+import SwapCrypto from "./SwapCrypto";
+
+function App() {
+  return (
+    <div>
+      <ConvertPi />
+      <SwapCrypto />
+    </div>
+  );
+}
+
+export default App;

ConvertPi.js

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+import { useState } from "react";
+import axios from "axios";
+
+const ConvertPi = () => {
+  const [currency, setCurrency] = useState("usd");
+  const [amount, setAmount] = useState(1);
+  const [converted, setConverted] = useState(null);
+
+  const convertPi = async () => {
+    try {
+      const response = await axios.get(`http://localhost:5000/convert/${currency}`);
+      setConverted(response.data["pi-network"][currency] * amount);
+    } catch (error) {
+      console.error("Error fetching exchange rate:", error);
+    }
+  };
+
+  return (
+    <div>
+      <h2>Konversi Pi Coin</h2>
+      <input type="number" value={amount} onChange={(e) => setAmount(e.target.value)} />
+      <select value={currency} onChange={(e) => setCurrency(e.target.value)}>
+        <option value="usd">USD</option>
+        <option value="eur">EUR</option>
+        <option value="btc">BTC</option>
+        <option value="eth">ETH</option>
+      </select>
+      <button onClick={convertPi}>Konversi</button>
+      {converted !== null && <p>Hasil: {converted} {currency.toUpperCase()}</p>}
+    </div>
+  );
+};
+
+export default ConvertPi;

SwapCrypto.js

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+import { useState } from "react";
+import axios from "axios";
+
+const SwapCrypto = () => {
+  const [from, setFrom] = useState("pi-network");
+  const [to, setTo] = useState("btc");
+  const [amount, setAmount] = useState(1);
+  const [swapResult, setSwapResult] = useState(null);
+
+  const swapCrypto = async () => {
+    try {
+      const response = await axios.get(`http://localhost:5000/swap/${from}/${to}`);
+      setSwapResult(amount * response.data.rate);
+    } catch (error) {
+      console.error("Error fetching swap rate:", error);
+    }
+  };
+
+  return (
+    <div>
+      <h2>Swap Kripto</h2>
+      <input type="number" value={amount} onChange={(e) => setAmount(e.target.value)} />
+      <select value={from} onChange={(e) => setFrom(e.target.value)}>
+        <option value="pi-network">Pi Coin</option>
+        <option value="bitcoin">Bitcoin</option>
+        <option value="ethereum">Ethereum</option>
+      </select>
+      <span>➡</span>
+      <select value={to} onChange={(e) => setTo(e.target.value)}>
+        <option value="pi-network">Pi Coin</option>
+        <option value="bitcoin">Bitcoin</option>
+        <option value="ethereum">Ethereum</option>
+      </select>
+      <button onClick={swapCrypto}>Tukar</button>
+      {swapResult !== null && <p>Hasil: {swapResult} {to.toUpperCase()}</p>}
+    </div>
+  );
+};
+
+export default SwapCrypto; yg

server.js

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+require("dotenv").config();
+const express = require("express");
+const axios = require("axios");
+const cors = require("cors");
+
+const app = express();
+app.use(express.json());
+app.use(cors());
+
+const COINGECKO_API = "https://api.coingecko.com/api/v3/simple/price";
+
+// Mendapatkan nilai tukar Pi Coin ke mata uang lain
+app.get("/convert/:currency", async (req, res) => {
+  try {
+    const currency = req.params.currency.toLowerCase();
+    const response = await axios.get(`${COINGECKO_API}?ids=pi-network&vs_currencies=${currency}`);
+    res.json(response.data);
+  } catch (error) {
+    res.status(500).json({ error: "Gagal mendapatkan nilai tukar" });
+  }
+});
+
+// Swap antara dua mata uang kripto
+app.get("/swap/:from/:to", async (req, res) => {
+  try {
+    const { from, to } = req.params;
+    const response = await axios.get(`${COINGECKO_API}?ids=${from},${to}&vs_currencies=usd`);
+
+    const fromPrice = response.data[from].usd;
+    const toPrice = response.data[to].usd;
+
+    const swapRate = fromPrice / toPrice;
+    res.json({ rate: swapRate });
+  } catch (error) {
+    res.status(500).json({ error: "Gagal mendapatkan nilai tukar" });
+  }
+});
+
+app.listen(5000, () => console.log("Server berjalan di port 5000"));