Box.V2.Managers.BoxFilesManager.UploadAsync C# (CSharp) Метод

        public async Task<BoxFile> UploadAsync(BoxFileRequest fileRequest, Stream stream, List<string> fields = null,
                                                TimeSpan? timeout = null, byte[] contentMD5 = null,
                                                bool setStreamPositionToZero = true,
                                                Uri uploadUri = null)
        {
            stream.ThrowIfNull("stream");
            fileRequest.ThrowIfNull("fileRequest")
                .Name.ThrowIfNullOrWhiteSpace("filedRequest.Name");
            fileRequest.Parent.ThrowIfNull("fileRequest.Parent")
                .Id.ThrowIfNullOrWhiteSpace("fileRequest.Parent.Id");

            if (setStreamPositionToZero)
                stream.Position = 0;

            uploadUri = uploadUri == null ? _config.FilesUploadEndpointUri : uploadUri;

            BoxMultiPartRequest request = new BoxMultiPartRequest(uploadUri) { Timeout = timeout }
                .Param(ParamFields, fields)
                .FormPart(new BoxStringFormPart()
                {
                    Name = "attributes",
                    Value = _converter.Serialize(fileRequest)
                })
                .FormPart(new BoxFileFormPart()
                {
                    Name = "file",
                    Value = stream,
                    FileName = fileRequest.Name
                });

            if (contentMD5 != null)
                request.Header(Constants.RequestParameters.ContentMD5, HexStringFromBytes(contentMD5));

            IBoxResponse<BoxCollection<BoxFile>> response = await ToResponseAsync<BoxCollection<BoxFile>>(request).ConfigureAwait(false);

            // We can only upload one file at a time, so return the first entry
            return response.ResponseObject.Entries.FirstOrDefault();
        }