Is it “safe” to cache IServiceProvider for an app's lifetime?

Question

I\'m using ASP.NET Core, and its builtin DI container. I\'m using a third-party library (NLog) which I can\'t change.

My Foo class has a dependency (by

Answer 1

Addendum to @CodeCaster's excellent solution.

It's important to change Func to Func>. Otherwise the container won't return new instances each time, even though you're using a delegate factory.

Probably has something to do with the fact that a long-lived component (singleton) depends on a short-lived component (per-transaction). The Func<> prevents the captive dependency bug, but for the factory to also give you new instances each time, it needs to be Owned<>.

I don't understand why, and it seems counter-intuitive, but that's how it works.