Junior ASP.NET Core

What is the difference between IActionResult and ActionResult<T>?

  • IActionResult: Represents a non-generic result of an action method. Can return any

HTTP response (Ok, NotFound, Redirect, etc.).

  • ActionResult<T>: Combines a result with a typed value (T). It allows returning typed

data or an HTTP response. Improves clarity and enables better OpenAPI docs.

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