Master NestJS Interceptors: Transform Responses, Handle Errors & Boost Performance! 🚀

In this video, you’ll learn: ✅ What Is an Interceptor in NestJS? ✅ Key Differences Between Middleware and Interceptors ✅ How to Build a Custom Logging Interceptor ✅ Transforming Responses and Handling Errors Effectively ✅ Supercharge Your APIs with Caching ✅ A Quick Dive Into Observables and RxJS Operators (map, tap, of) Perfect for developers looking to create clean, scalable, and production-ready NestJS applications! 💪 📚 Chapters: 0:00 🔥 Intro 0:29 ❓ What is an Interceptor? 0:52 ⚙️ Middleware vs. Interceptor: What’s the Difference? 4:41 📝 Building a Logging Interceptor 6:39 🚀 Applying the Interceptor in NestJS 11:30 📊 What is an Observable in JavaScript? 13:52 🎯 RxJS (of)Operator Explained 14:51 🛠️ RxJS (tap) Operator for Side Effects 15:31 🔄 RxJS (map) Operator for Data Transformation 17:17 🔄 Transforming API Responses Using Interceptors 18:57 ❌ Error Handling with Interceptors 22:05 💾 Caching Responses for Performance Boost 🔗 Helpful Links: ⭐ GitHub Code Repo: https://github.com/vahid-nejad/NestJS-Interceptors 💬 Got questions? Drop them in the comments—I answer every single one! 👍 Like, 🔔 Subscribe, and hit the bell for more advanced tutorials on NestJS, Next.js, and full-stack development! 💖 Become a member to support me: https://www.youtube.com/channel/UCTKSxERKbrpQOTa7QjDPjZg/join