Create main.js

main.js

@@ -0,0 +1,12 @@
+const express = require("express");
+const app = express();
+
+app.get("/", (req, res) => {
+    const ip = req.headers["x-forwarded-for"] || req.socket.remoteAddress;
+    res.send(ip);
+    res.end();
+});
+
+app.listen(3000, () => {
+    console.log("Listening on port 3000");
+});