backend-insights.hashnode.devSecuring Your Node.js API with JWT Access & Refresh TokensYour API is built, but it's open to everyone. You need authentication—a way to know who is making a request. A common, powerful solution is using JSON Web Tokens (JWT). However, a simple JWT that lasts for 30 days creates a major security risk: if a ...Nov 8, 2025·6 min read
backend-insights.hashnode.devDon't Expose Your Node.js API: A Guide to API Keys and PermissionsYour new Node.js API is deployed and running. But there's a problem: anyone can access it. This is a massive security risk, especially for a production application. A foundational layer of security is implementing API keys. An API key is a unique str...Nov 6, 2025·5 min read
backend-insights.hashnode.devStop Handling Errors in Controllers: A Guide to Custom Error Handling in Node.jsIn many Node.js applications, error handling is done directly inside the controller. You've probably written code like this: if (!user) { return res.status(404).json({ message: 'User not found' }); } This approach is repetitive, clutters your busi...Nov 5, 2025·5 min read
backend-insights.hashnode.devMongoDB Setup with Mongoose – Best Practices for Scalable BackendsWhen building a scalable Node.js application, a simple database connection string isn't enough. For a secure, optimized, and robust setup, you need to configure Mongoose with best practices. This guide, based on the video, covers essential configurat...Nov 3, 2025·3 min read
backend-insights.hashnode.devWinston for Logging Quick GuideWhat is Winston? Winston is a popular and versatile logging library for Node.js. It is designed to be flexible and is a common choice for scalable backend applications, helping to record application events, errors, and debugging information. Why is L...Nov 2, 2025·3 min read
