juniorASP.NET Web API
What is IActionResult in Web API?
Updated Apr 28, 2026
Short answer
IActionResult represents HTTP response.
Deep explanation
It provides flexibility to return different response types like Ok, NotFound, BadRequest.
Real-world example
Returning 200 OK or 404 Not Found.
Common mistakes
- Returning raw objects instead of proper responses.
Follow-up questions
- What is Ok()?
- Why IActionResult?