When a user clicks a button on your website, the request may not stay inside one server. In modern applications, one request can travel through many services. For example: A frontend app calls an API Gateway.The API Gateway calls the User Service.The User Service calls the Order Service.The Order Service calls the Payment Service. Now […]
Tracking Cross-Service Requests in Node.js Using Transaction IDs TxID Read More »
Introduction When you build a frontend and backend separately, you will often face CORS errors and token errors. These errors are very common in real projects, especially when your frontend runs on one URL and your backend API runs on another URL. For example, your frontend may run on: And your backend may run on:
Debug CORS and Token Errors in Node.js, Express, and Apollo Server Read More »
Modern web applications receive thousands of requests every day. Without proper protection, your API can become vulnerable to abuse, brute-force attacks, excessive traffic, and even server crashes. This is where a Rate Limiter in Node.js becomes extremely important. A rate limiter controls how many requests a user can make within a specific period. It helps
Rate Limiter in Node.js: Complete Beginner-Friendly Guide Read More »
Cannot GET / Route Express Fix If you are learning Node.js and Express.js, one of the most common errors you will see is: This error confuses many beginners because the server is running correctly, but the browser still shows an error page. In this complete guide, you will learn: This guide is beginner friendly and
Cannot GET / Route Express Fix – Complete Beginner Guide for Node.js Developers Read More »