Return an image from asp.net web api core as IActionResult

Question

What is the best way to return an image file as IActionResult while using asp.net web api core? I tried returning a base64 string and it works fine. But not considered as ef

Answer 1

You can return image using return file with stream or bytes format or using its image path.

There are few overloaded methods for return File(//parameters); which you can use it in mvc controller's action method.

API Controller

[Route("api/[controller]")]
public class FileController : Controller {

    //GET api/file/id
    [HttpGet("{id}"]
    public async Task GetFile(string id) {
        var stream = await {{//__get_stream_here__//}};
        var response = File(stream, "application/octet-stream"); // FileStreamResult
        return response;
    }    
}

or

var imageFileStream = System.IO.File.OpenRead("// image path");
return File(imageFileStream, "image/jpeg");

Hope this will help you.