Web API Upload File to Different Directory - asp.net

Question

is it possible to upload files using Web API to a different directory and not just on the App Root Folder? Either folder on the same server outside App Root Folder or another server.
I need to upload files using Web API to another directory with more space.
public HttpResponseMessage Post()
{
try
{
string mydir = "~/Files/"; //-- APP ROOT FOLDER --//
if (!(Directory.Exists(HttpContext.Current.Server.MapPath(mydir))))
{
Directory.CreateDirectory(HttpContext.Current.Server.MapPath(mydir));
}
var httpRequest = HttpContext.Current.Request;
if (httpRequest.Files.Count > 0)
{
foreach (string file in httpRequest.Files)
{
var postedFile = httpRequest.Files[file];
string filename = string.Concat(GetActualFilename(postedFile.FileName), GetExtension(postedFile.FileName));
var filePath = HttpContext.Current.Server.MapPath(mydir + "/" + filename);
postedFile.SaveAs(filePath);
}
}
else
{
return Request.CreateResponse(HttpStatusCode.OK, "No file attached/processed.");
}
return Request.CreateResponse(HttpStatusCode.Created, "Successfully uploaded file(s).");
}
catch (Exception ex)
{
return Request.CreateResponse(HttpStatusCode.BadRequest, ex.Message);
}
}
private static string GetActualFilename(string filename)
{
for (int i = filename.Length - 1; i >= 0; i--)
{
if (filename[i] == '.')
{
return filename.Substring(0, i);
}
}
return filename;
}
private static string GetExtension(string filename)
{
for (int i = filename.Length - 1; i >= 0; i--)
{
if (filename[i] == '.')
{
return filename.Substring(i);
}
}
return "";
}