How to free resources and dispose injected service in ASP.NET 5/Core by the end of request?

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I have a service which is injected into a controller using the ASP.NET Core's default Dependency Injection Container:

public class FooBarService : IDisposable {
    public void Dispose() { ... }
}

services.AddScoped<FooBarService>();

This creates one instance per request. How to ensure that the framework would dispose the FooBarService instance by the end of each request, without relying on destructors and garbage collection?

3 Answers

I see no one mentioned this yet, but besides implementing IDisposable in your type, you can also use {HttpContext}.Response.RegisterForDispose(objectToDispose). Typically this is used to register an object at the start of a request (such as a controller action) to be disposed when the request ends.

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