asp.net-core - .netコアの大きなファイルのアップロード方法

Question

asp.netコアWeb APIで大きなファイルをアップロードするには? 500MBを超えると、以下の例外メッセージが表示されます。「COMPlus_gcAllowVeryLargeObjects」環境変数とスタートアップも設定します。

services.Configure<FormOptions>(options =>
    {
        options.BufferBodyLengthLimit = Int64.MaxValue;
        options.MemoryBufferThreshold = Int32.MaxValue;
        options.MultipartBodyLengthLimit = long.MaxValue;
        options.MultipartBoundaryLengthLimit = int.MaxValue;
        options.MultipartHeadersLengthLimit = Int32.MaxValue;
    });

以下は私のコードです。設定する必要があるものはありますか?

[HttpPost("{id}")] 
[RequestFormLimits(MultipartBodyLengthLimit = long.MaxValue)]
[DisableRequestSizeLimit]
public ActionResult UploadLargeFiles(string id, [FromForm]IFormFile files)
{
    try
    {
        string fileName = files.FileName;
        int fileSize = Convert.ToInt32(files.Length);

        var uploadProvider = new JObject();
        var res = new JArray();

        var isExistence = _mailService.GetUploadFolder(id);
        if (isExistence != HttpStatusCode.OK)
        {
            var createFolder = _mailService.CreateUploadFolder(id);
            if (createFolder != HttpStatusCode.Created)
            {
                ModelState.AddModelError("OneDriveFolderError", "");
                return BadRequest(ModelState);
            }
        }
        if (files.Length > 0)
        {
            byte[] data = new byte[fileSize];

            var uploadSessionUrl = _mailService.CreateUploadSession(id, fileName);
            if (uploadSessionUrl != null)
            {
                uploadProvider = _mailService.UploadByteFile(id, uploadSessionUrl, data, fileName, fileSize);
                res.Add(uploadProvider);

                Array.Fill(data, (byte)0);
            }
            else
            {
                ModelState.AddModelError("sessionFail", "");
                return BadRequest(ModelState);
            }
        }

        var Link = this.SaveFileDownloadLink(res);
        return Ok(Link);
    }
    catch (ArgumentNullException e)
    {
        return NotFound(e.Message);
    }
}

ファイルをバイト形式で OneDrive にアップロードします。1 バイトは 2 GB 以上を保持できますか?

public JObject LargeFileUpload(string upn, string url, byte[] file, string fileName, int fileSize)
{
    int fragSize = 4 * 1024 * 1024; //4MB => 4 * 1024 * 1024;
    var byteRemaining = fileSize;
    var numFragments = ( byteRemaining / fragSize ) + 1;
    int i = 0;
    var responseCode = HttpStatusCode.OK;
    var jObject = new JObject();

    while (i < numFragments)
    {
        var chunkSize = fragSize;
        var start = i * fragSize;
        var end = i * fragSize + chunkSize - 1;
        var offset = i * fragSize;

        if (byteRemaining < chunkSize) {
            chunkSize = byteRemaining;
            end = fileSize - 1;
        }

        var contentRange = " bytes " + start + "-" + end + "/" + fileSize;

        using (var client = new HttpClient())
        {
            var content = new ByteArrayContent(file);
            content.Headers.Add("Content-Length", chunkSize.ToString());
            content.Headers.Add("Content-Range", contentRange);

            var response = client.PutAsync(url, content);
            var strData = response.Result.Content.ReadAsStringAsync().Result;
            responseCode = response.Result.StatusCode;

            
            if (responseCode == HttpStatusCode.Created)
            {
                JObject data = JObject.Parse(strData);
                string downloadUrl = data["@content.downloadUrl"].ToString();
                string itemId = data["id"].ToString();

                
                fileSize = fileSize / 1000;
                jObject = JObject.FromObject(new { name = fileName, id = itemId, url = downloadUrl, size = (double)fileSize });
            }
            
            else if (responseCode == HttpStatusCode.Conflict)
            {
                var restart = RestartByteFile(upn, url, fileName);
                responseCode = restart;
            }
        }
        byteRemaining = byteRemaining - chunkSize;
        i++;
    }

    if (responseCode == HttpStatusCode.Created) { return jObject; }
    else return jObject = JObject.FromObject(new { result = "Fail" });
}