How to upload file with web-api - asp.net

Question

Client side code:
<form action="api/MyAPI" method="post" enctype="multipart/form-data">
<label for="somefile">File</label> <input name="somefile" type="file" />
<input type="submit" value="Submit" />
</form>
And how to process upload file with mvc web-api,have some sample code?

Answer 1

HTML Code:
<form action="api/MyAPI" method="post" enctype="multipart/form-data">
<label for="somefile">File</label>
<input name="somefile" type="file" />
<input type="submit" value="Submit" />
</form>
Controller
// POST api/MyAPI
public HttpResponseMessage Post()
{
HttpResponseMessage result = null;
var httpRequest = HttpContext.Current.Request;
if (httpRequest.Files.AllKeys[0] == "image")
{
if (httpRequest.Files.Count > 0)
{
var docfiles = new List<string>();
foreach (string file in httpRequest.Files)
{
var postedFile = httpRequest.Files[file];
var filePath = HttpContext.Current.Server.MapPath("~/Images/" + postedFile.FileName);
postedFile.SaveAs(filePath);
docfiles.Add(filePath);
}
result = Request.CreateResponse(HttpStatusCode.Created, docfiles);
}
}
else
{
result = Request.CreateResponse(HttpStatusCode.BadRequest);
}
return result;
}
try below link
this link use for me hopefully it will work you
http://www.asp.net/web-api/overview/advanced/sending-html-form-data,-part-2

Answer 2

You can use ApiMultipartFormFormmatter to upload file to web api 2.
By using this library, you can define a view model to get parameters submitted from client-side. Such as:
public class UploadFileViewModel
{
public HttpFile Somefile{get;set;}
}
And use it in your Api controller like this:
public IHttpActionResult Upload(UploadFileViewModel info)
{
if (info == null)
{
info = new UploadFileViewModel();
Validate(info);
}
if (!ModelState.IsValid)
return BadRequest(ModelState);
return Ok();
}
Nested objects can be parsed by this library.