how to upload a file to asp.net core backend with http

Question

Now I use Asp.net core as the server framework. I want to know how to upload a file to an Asp.net core server? I use web api but not the web application. So form submit is no use. The code below doesn't work.

[HttpPost("uploadImage/{accountGuid}")]
public async Task<string> UploadTargetImage(ICollection<IFormFile> files,Guid accountGuid)
{   
     if (files == null) throw new Exception("File is null");
     if (files.Count == 0) throw new Exception("File is empty");
}

I use fiddler to test the API. Like below: see the fiddler post image

The result of api is File is empty.So the server didn't get the post file. What should I do? It puzzles me for a long time.

Possible duplicate of ASP.NET MVC 4 Web Api ajax file upload — Boris Schegolev
– Boris Schegolev, Commented Oct 12, 2016 at 6:56

Hongyang Du · Accepted Answer · 2016-10-12 06:58:45Z

1

I hava just fix it! The input name in POST must be the same as method param in ASP.NET.

answered Oct 12, 2016 at 6:58

Hongyang Du

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