Multipart upload api #.Net Core

stackoverflow.com

ASP.NET WebAPI → ASP.NET Core WebAPI
移行中。。

[HttpPost("upload")]
    public async Task<IActionResult> Upload()
    {
        try
        {
            CloudBlobContainer vCloudBlobContainer = await GetCloudBlobContainer().ConfigureAwait(false);
            string boundary = GetBoundary(Request.ContentType);

            MultipartReader reader = new MultipartReader(boundary, Request.Body, 80 * 1024);
            Dictionary<string, string> sectionDictionary = new Dictionary<string, string>();
            MultipartSection section;
            MyFile myFile;

            while ((section = await reader.ReadNextSectionAsync().ConfigureAwait(false)) != null)
            {
                ContentDispositionHeaderValue contentDispositionHeaderValue = section.GetContentDispositionHeader();

                if (contentDispositionHeaderValue.IsFormDisposition())
                {
                    FormMultipartSection formMultipartSection = section.AsFormDataSection();
                    string value = await formMultipartSection.GetValueAsync().ConfigureAwait(false);

                    sectionDictionary.Add(formMultipartSection.Name, value);
                }
                else if (contentDispositionHeaderValue.IsFileDisposition())
                {
                    myFile = JsonConvert.DeserializeObject<MyFile>(sectionDictionary.GetValueOrDefault(nameof(MyFile)));
                    if (myFile == default(object))
                    {
                        throw new InvalidOperationException();
                    }

                    CloudBlockBlob cloudBlockBlob = vCloudBlobContainer.GetBlockBlobReference(myFile.RelativePath);
                    Stream stream = await cloudBlockBlob.OpenWriteAsync().ConfigureAwait(false);
                    FileMultipartSection fileMultipartSection = section.AsFileSection();

                    await cloudBlockBlob.UploadFromStreamAsync(fileMultipartSection.FileStream).ConfigureAwait(false);
                }
            }
            return Ok();
        }
        catch (Exception e)
        {
            throw e;
        }
    }

Thanks!