Custom Decorators And Middleware In NestJS For User Authentication

Decorators and middleware are the bread and butter of NestJS—tools that can make your life either incredibly easy or slightly overwhelming, depending on how you approach them. 
Today, let’s walk through creating a custom decorator and middleware for user authentication, all while keeping things light and straightforward. Grab your coffee, and let’s dive in!

  
  
  1. The Interface

First, let’s define an interface for our user object. 
This will ensure type safety and keep our IDE happy (and who doesn’t love a happy IDE?).

export interface IUser {
  id: string;
  name: string;
  primaryEmai...