Should I use IFormFile to Upload Files in ASP.NET Core API

Question

I can understand using IFormFile to upload files in an MVC web app but what is the correct method of uploading files using ASP.NET Core when writing an API supporting Swagger?

With IFormFile

[HttpPost("{id}/content", Name ="PostZipFile")]
[Consumes("application/zip")]
public Task<IActionResult> PostZipFile(int id, [FromBody] IFormFile zipFile)
{
}

Using Body.Stream

[HttpPost("{id}/content", Name ="PostZipFile")]
[Consumes("application/zip")]
public Task<IActionResult> PostZipFile(int id)
{
    this.Response.Body.Stream
}

It still applies to WebApi-esque controllers. In ASP.NET Core both are unified in a single API. You just need to send the ajax post request with multipart/form-data encoding type — Tseng
– Tseng, Commented Oct 20, 2016 at 9:54

Mahdi Amini · Accepted Answer · 2018-09-16 15:25:31Z

2

Try this :

[HttpPost("{id}/content", Name ="PostZipFile")]
public Task<IActionResult> PostZipFile(int id,IFormFile zipFile)
{
}

And make sure that on the Client Side, the Form Action or Ajax request has: encoding type= "multipart/form-data"

edited Sep 16, 2018 at 15:25

answered Jan 28, 2017 at 6:48

Mahdi Amini

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1 Comment

jokab Over a year ago

i was missing enctype: <form method="post" enctype="multipart/form-data">

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