I've been wondering if there was a simple way to download a file in a more ... "generic" way. I came up with this.
It's a simple ActionResult that will allow you to download a file from a controller call that returns an IHttpActionResult.
The file is stored in the byte[] Content. You can turn it into a stream if needs be.
I used this to return files stored in a database's varbinary column.
public class FileHttpActionResult : IHttpActionResult
{
public HttpRequestMessage Request { get; set; }
public string FileName { get; set; }
public string MediaType { get; set; }
public HttpStatusCode StatusCode { get; set; }
public byte[] Content { get; set; }
public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
{
HttpResponseMessage response = new HttpResponseMessage(StatusCode);
response.StatusCode = StatusCode;
response.Content = new StreamContent(new MemoryStream(Content));
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
response.Content.Headers.ContentDisposition.FileName = FileName;
response.Content.Headers.ContentType = new MediaTypeHeaderValue(MediaType);
return Task.FromResult(response);
}
}