Save the MultipartFileData file to disk

Question

I have the following code that I saw in other threads here, but nowhere does it actually show how to save the MultipartFileData file to disk when you have it.

[HttpPost] public Task<HttpResponseMessage> PostFormData() { // Check if the request contains multipart/form-data. if (!Request.Content.IsMimeMultipartContent()) { throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType); } string root = HttpContext.Current.Server.MapPath(Settings.AssetImageTempStorage); var provider = new MultipartFormDataStreamProvider(root); // Read the form data and return an async task. var task = Request.Content.ReadAsMultipartAsync(provider). ContinueWith<HttpResponseMessage>(t => { if (t.IsFaulted || t.IsCanceled) { Request.CreateErrorResponse(HttpStatusCode.InternalServerError, t.Exception); } // This illustrates how to get the file names. foreach (MultipartFileData file in provider.FileData) { // HOW DO I SAVE THIS FILE TO DISK HERE ??? Trace.WriteLine(file.Headers.ContentDisposition.FileName); Trace.WriteLine("Server file path: " + file.LocalFileName); } return Request.CreateResponse(HttpStatusCode.OK); }); return task; } 

Answer 1

Here is an example of saving a file on a server. Hope this helps you.

 public class TestController : ApiController { const string StoragePath = @"T:\WebApiTest"; public async Task<HttpResponseMessage> Post() { if (Request.Content.IsMimeMultipartContent()) { var streamProvider = new MultipartFormDataStreamProvider(Path.Combine(StoragePath, "Upload")); await Request.Content.ReadAsMultipartAsync(streamProvider); foreach (MultipartFileData fileData in streamProvider.FileData) { if (string.IsNullOrEmpty(fileData.Headers.ContentDisposition.FileName)) { return Request.CreateResponse(HttpStatusCode.NotAcceptable, "This request is not properly formatted"); } string fileName = fileData.Headers.ContentDisposition.FileName; if (fileName.StartsWith("\"") && fileName.EndsWith("\"")) { fileName = fileName.Trim('"'); } if (fileName.Contains(@"/") || fileName.Contains(@"\")) { fileName = Path.GetFileName(fileName); } File.Move(fileData.LocalFileName, Path.Combine(StoragePath, fileName)); } } return Request.CreateResponse(HttpStatusCode.OK); } else { return Request.CreateResponse(HttpStatusCode.NotAcceptable, "This request is not properly formatted"); } }