How to implement guide with dependency injection of scoped services in asp.net core - object disposal problems
I'm trying to debug I'm building a feature where Quick question that's been bugging me - I've been banging my head against this for hours..... I'm working with a question with dependency injection in my ASP.NET Core application (version 5.0). I have a service `MyScopedService` that is registered as a scoped service in the `Startup.cs` file. However, I’m running into a situation where it seems to be disposed of prematurely when injected into a controller and accessed in an action method. The behavior I'm working with is an `ObjectDisposedException` when I try to access a method on `MyScopedService`. Here’s how I’ve registered the service: ```csharp public void ConfigureServices(IServiceCollection services) { services.AddScoped<MyScopedService>(); } ``` And in my controller: ```csharp public class MyController : ControllerBase { private readonly MyScopedService _myScopedService; public MyController(MyScopedService myScopedService) { _myScopedService = myScopedService; } [HttpGet] public IActionResult GetData() { return Ok(_myScopedService.GetData()); } } ``` The `GetData` method in `MyScopedService` retrieves data from a database using Entity Framework. It works fine for the first request, but on subsequent requests, I get this exception: ``` System.ObjectDisposedException: want to access a disposed object. Object name: 'MyScopedService'. ``` I’ve checked that my service isn’t registered as a singleton or transient by mistake, and I’m using `IServiceScopeFactory` to create scopes explicitly for background tasks. I also tried using `AddTransient` instead of `AddScoped`, but that doesn't seem to be a viable solution since it changes the lifecycle and introduces new issues with state management. Could this be related to how I'm managing the lifetime of the service or how I'm using it in my controller? Any insights on best practices for using scoped services in ASP.NET Core would be greatly appreciated. Any ideas what could be causing this? My development environment is Windows. How would you solve this? I've been using C# for about a year now. Is this even possible? I'm developing on Ubuntu 20.04 with C#. This is happening in both development and production on Ubuntu 22.04. Thanks for any help you can provide!