You Don’t Need an Interface for Everything

Ever felt like you’re drowning in IOrderService, IEmailService, and IPaymentService—only to realize each one has exactly one implementation? This video breaks down why most of these interfaces aren’t pulling their weight, when they actually make sense (think polymorphism or mocking for tests), and how our love affair with interfaces started thanks to .NET’s Dependency Injection tutorials.

Along the way, you’ll see how simple delegates or method overrides can replace heavyweight interfaces in many scenarios, keeping your codebase leaner and way easier to maintain.

Watch on YouTube