ASP.Net API how to let API accept an IFromFile and an object at the same API call-CodePudding

I have the following API that works properly

[HttpPost("testing")]
public string Testing(IFormFile file, string str, int num)
{
  return str   num.ToString();
}

What I want to do ideally is to pass "str" and "num" in an object instead of each param on its own

Like this:

public class Testdto
{
  public int Num{ get; set; }
  public string Str { get; set; }
}

[HttpPost("testing")]
public string Testing(IFormFile file, testdto dto)
{
 return dto.str   dto.num.ToString();
}

Of course the above format rends an error, it does not work.

Is there a way to make it work? My real API body is quite large and contains nested objects so I can't just pass them all as params in the API

CodePudding user response：

add the FromForm Attribute :

[HttpPost("testing")]
        public string Testing(IFormFile file, [FromForm]testdto dto)
        {
            return dto.str   dto.num.ToString();
        }

And add the parameters to request form

The result:

CodePudding user response：

You can also create class having properties as IFormFile and other fileds.

And pass it to your controller with [FromForm] attribute

Sample Code:

 [HttpPost]
 [Route("FileUpload")]
 public ActionResult FileUploaded([FromForm] PostRequest postRequest) {

          return Ok(postRequest.str);
 }

 public class PostRequest {
     public int num { get; set; }           
     public string str { get; set; }           
     public IFormFile file { get; set; }    
 }