Struggling with Dependency Injection for a New Service in ASP.NET Core 6
I'm getting frustrated with I'm stuck trying to I'm optimizing some code but I'm stuck on something that should probably be simple..... I'm relatively new to this, so bear with me. Currently developing a feature that requires integrating a new service to handle payment processing in our ASP.NET Core 6 application. I've set up the service and implemented the necessary interfaces, but I'm running into an issue with dependency injection. After registering the service in `Startup.cs`, when I try to inject it into my controller, I'm getting the following error: ``` InvalidOperationException: Unable to resolve service for type 'MyApp.Services.IPaymentService' while attempting to activate 'MyApp.Controllers.PaymentController'. ``` Here's how I've registered the service in my `ConfigureServices` method: ```csharp public void ConfigureServices(IServiceCollection services) { services.AddControllers(); services.AddScoped<IPaymentService, PaymentService>(); } ``` And this is how I'm trying to inject it into my controller: ```csharp public class PaymentController : ControllerBase { private readonly IPaymentService _paymentService; public PaymentController(IPaymentService paymentService) { _paymentService = paymentService; } // Action methods... } ``` Despite following what I thought were the best practices, the service isn't being resolved correctly. I've also checked that `PaymentService` implements `IPaymentService` properly. Additionally, I’ve ensured that there are no typos in the registration or injection. I would appreciate any insights on what might be going wrong or if there's a common pitfall in configuring DI for new services in ASP.NET Core 6 that I might be overlooking. Also, if there are alternative approaches or design patterns that might simplify service integrations, I’m all ears! Any help would be greatly appreciated! What's the best practice here? My development environment is Linux. What's the best practice here? This is part of a larger service I'm building. Thanks for your help in advance! For context: I'm using C# on Ubuntu 22.04. Hoping someone can shed some light on this.