add nodejs-rate-limiter code

nodejs/nodejs-rate-limiter/app.js

@@ -0,0 +1,27 @@
+const express = require("express");
+const rateLimitMiddleware = require("./middlewares/ratelimit");
+const app = express();
+
+app.use(rateLimitMiddleware);
+
+// A simple API route
+app.get("/api/blog", (req, res) => {
+  res.send({
+    success: true,
+    message: "Welcome to our Blog API Rate Limiter Project 🎉",
+  });
+});
+
+app.get("/api/blog/post", (req, res) => {
+  res.send({
+    success: true,
+    author: "Mike Abdul",
+    title: "Creating NodeJs Rate Limiter",
+    post: "...",
+  });
+});
+
+const PORT = process.env.PORT || 5000;
+app.listen(PORT, () => {
+  console.log(`Server running on port ${PORT}`);
+});

nodejs/nodejs-rate-limiter/middlewares/ratelimit.js

@@ -0,0 +1,11 @@
+const setRateLimit = require("express-rate-limit");
+
+// Rate limit middleware
+const rateLimitMiddleware = setRateLimit({
+  windowMs: 60 * 1000,
+  max: 5,
+  message: "You have exceeded your 5 requests per minute limit.",
+  headers: true,
+});
+
+module.exports = rateLimitMiddleware;