From 308dafed8135928126f573229602c5ef66302d48 Mon Sep 17 00:00:00 2001
From: Pesala Jayawardene <pesala.em.rms@gmail.com>
Date: Thu, 27 Nov 2025 20:06:46 +0530
Subject: [PATCH] Set up Express server with CORS and proxy middleware

---
 server.js | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 server.js

diff --git a/server.js b/server.js
new file mode 100644
index 00000000..81e135cf
--- /dev/null
+++ b/server.js
@@ -0,0 +1,37 @@
+const express = require('express');
+const cors = require('cors');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// 1. Allow All Origins (Cloud Mode)
+app.use(cors({
+    origin: '*', 
+    methods: ['GET', 'POST', 'OPTIONS'],
+    allowedHeaders: ['Content-Type', 'X-MBX-APIKEY'],
+    credentials: false
+}));
+
+// 2. Health Check
+app.get('/', (req, res) => {
+    res.send('Quantum Proxy is Running on Glitch!');
+});
+
+// 3. Proxy Logic
+const proxyOptions = {
+    target: 'https://api.binance.com',
+    changeOrigin: true,
+    pathRewrite: {
+        '^/api/v3': '/api/v3'
+    },
+    onProxyRes: (proxyRes) => {
+        proxyRes.headers['Access-Control-Allow-Origin'] = '*';
+    }
+};
+
+app.use('/api', createProxyMiddleware(proxyOptions));
+
+app.listen(PORT, () => {
+    console.log(`Server running on port ${PORT}`);
+});