How To Accept a File POST
asp.net-mvc-4, c#
Solution
see http://www.asp.net/web-api/overview/formats-and-model-binding/html-forms-and-multipart-mime#multipartmime, although I think the article makes it seem a bit more complicated than it really is.
Basically,
public Task<HttpResponseMessage> PostFile()
{
HttpRequestMessage request = this.Request;
if (!request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string root = System.Web.HttpContext.Current.Server.MapPath("~/App_Data/uploads");
var provider = new MultipartFormDataStreamProvider(root);
var task = request.Content.ReadAsMultipartAsync(provider).
ContinueWith<HttpResponseMessage>(o =>
{
string file1 = provider.BodyPartFileNames.First().Value;
// this is the file name on the server where the file was saved
return new HttpResponseMessage()
{
Content = new StringContent("File uploaded.")
};
}
);
return task;
}
Problem
I'm using asp.net mvc 4 webapi beta to build a rest service. I need to be able to accept POSTed images/files from client applications. Is this possible using the webapi? Below is how action I am currently using. Does anyone know of an example how this should work? ``` [HttpPost] public string ProfileImagePost(HttpPostedFile profileImage) { string[] extensions = { ".jpg", ".jpeg", ".gif", ".bmp", ".png" }; if (!extensions.Any(x => x.Equals(Path.GetExtension(profileImage.FileName.ToLower()), StringComparison.OrdinalIgnoreCase))) { throw new HttpResponseException("Invalid file type.", HttpStatusCode.BadRequest); } // Other code goes here return "/path/to/image.png"; } ```