MultipartFormDataStreamProvider to upload mime file and form data [closed] - asp.net-mvc-4

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Closed 10 years ago.
Using RTM version, Framework 4 due to Azure Requirements
Code works with out error on Azure emulator - i suspect the issue has to do with the path/environment variable.
Fails on Azure web role with a 404 error
Here is the Controller Code:
[ValidateInput(false)]
public HttpResponseMessage Post()
{
try
{
if (!Request.Content.IsMimeMultipartContent("form-data"))
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string tempPath = RoleEnvironment.GetLocalResource("tempStorage").RootPath;
Environment.SetEnvironmentVariable("TEMP", tempPath);
Environment.SetEnvironmentVariable("TMP", tempPath);
string Host = "test";
string StorageConnection = "credentials here";
string Product = "Product";
string CompanyID = "Company";
DocStorage docStorage = new DocStorage(Host, Product, CompanyID, StorageConnection);
var multipartStreamProvider = new AzureBlobStorageMultipartProvider(docStorage.BlobContainer, tempPath);
Stream reqStream = Request.Content.ReadAsStreamAsync().Result;
if (reqStream.CanSeek)
{
reqStream.Position = 0;
}
Request.Content.ReadAsMultipartAsync<AzureBlobStorageMultipartProvider>(multipartStreamProvider).ContinueWith<List<FileDetails>>(t =>
{
if (t.IsFaulted)
{
throw t.Exception;
}
AzureBlobStorageMultipartProvider provider = t.Result;
foreach (var fileData in provider.FileData)
{
string fileName = Path.GetFileName(fileData.Headers.ContentDisposition.FileName.Trim('"'));
string fileNameBlob = Path.GetFileName(fileData.LocalFileName.Trim('"'));
CloudBlob blob = docStorage.BlobContainer.GetBlobReference(fileNameBlob);
if (!string.IsNullOrEmpty(provider.FormData["company"]))
blob.Metadata[AriettDocStorage.FileNameFileLocation] = provider.FormData["company"];
blob.SetMetadata();
}
return provider.Files;
});
return new HttpResponseMessage(HttpStatusCode.OK);
}
catch
{
return new HttpResponseMessage(HttpStatusCode.NotFound);
}
}
Here is the override
public class AzureBlobStorageMultipartProvider : MultipartFormDataStreamProvider
{
public CloudBlobContainer Container;
public AzureBlobStorageMultipartProvider(CloudBlobContainer container, string tempPath)
: base(tempPath)
{
Container = container;
}
public override Task ExecutePostProcessingAsync()
{
// Upload the files to azure blob storage and remove them from local disk
foreach (var fileData in this.FileData)
{
string fileName = Path.GetFileName(fileData.Headers.ContentDisposition.FileName.Trim('"'));
// Retrieve reference to a blob
string fileNameBlob = Path.GetFileName(fileData.LocalFileName.Trim('"'));
CloudBlob blob = Container.GetBlobReference(fileNameBlob);
blob.Properties.ContentType = fileData.Headers.ContentType.MediaType;
blob.UploadFile(fileData.LocalFileName);
blob.SetProperties();
File.Delete(fileData.LocalFileName);
Files.Add(new FileDetails
{
ContentType = blob.Properties.ContentType,
Name = blob.Name,
Size = blob.Properties.Length,
Location = blob.Uri.AbsoluteUri
});
}
return base.ExecutePostProcessingAsync();
}

Answer 1

I resolved the issue, it was a number of little things, not related to the path, which was done correctly.