What Are Providers And How To Create Them

# NestJS Providers: Creating and Using Services Ever found yourself staring at a NestJS application, wondering how all the pieces fit together? How does your `UserService` magically get access to your `DatabaseService`? The answer lies in two fundamental concepts: **Providers** and **Dependency Injection (DI)**. Understanding these isn't just about writing code; it's about building robust, scalable, and maintainable applications. If you're looking to master NestJS development and unlock its ful