ASP.NET Core 6: implementing Dependency Injection in a Scoped Service When using IAsyncDisposable
I'm working on a project and hit a roadblock. I've looked through the documentation and I'm still confused about I'm currently developing an ASP.NET Core 6 web application and am working with a scenario with dependency injection, particularly regarding a scoped service that implements `IAsyncDisposable`. I have a service that retrieves data from a database and is registered as scoped in the `Startup.cs` file: ```csharp public void ConfigureServices(IServiceCollection services) { services.AddScoped<IMyScopedService, MyScopedService>(); } ``` The `MyScopedService` class looks like this: ```csharp public class MyScopedService : IMyScopedService, IAsyncDisposable { private readonly DbContext _context; public MyScopedService(DbContext context) { _context = context; } public async ValueTask DisposeAsync() { await _context.DisposeAsync(); } } ``` In my controller, I'm injecting the `IMyScopedService` and trying to use it in an action method: ```csharp [ApiController] [Route("api/[controller]")] public class MyController : ControllerBase { private readonly IMyScopedService _myScopedService; public MyController(IMyScopedService myScopedService) { _myScopedService = myScopedService; } [HttpGet] public async Task<IActionResult> Get() { // Using the scoped service... return Ok(); } } ``` However, I’m experiencing the following behavior when calling the endpoint: ``` InvalidOperationException: want to resolve scoped service 'IMyScopedService' from root provider. ``` I've looked into the usage of `IAsyncDisposable` and the proper registration of services, but I need to seem to find the root cause. I've confirmed that I am not trying to resolve `IMyScopedService` from a singleton context. I also tried changing the scope of the service by creating a new scope manually in the controller, but that led to additional complications. Here’s what I tried: ```csharp using (var scope = _serviceProvider.CreateScope()) { var scopedService = scope.ServiceProvider.GetRequiredService<IMyScopedService>(); // Use scopedService here } ``` This approach doesn’t feel right and leads to issues with managing the lifecycle of the service. What’s the recommended way to handle this situation in ASP.NET Core 6? Is there a specific configuration I might be missing regarding service lifetimes or async disposal? I'm working on a application that needs to handle this. Any ideas what could be causing this? What's the best practice here?