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 | 
 
 
 
 
 
 
 
 
 public static async Task<T?> UploadPostAsync<T>(Uri baseAddress, string? requestUrl, IDictionary<string, object>? parameters, IDictionary<string, string>? parameterFiles, Action<object?, HttpProgressEventArgs>? progressAction = null, string? token = null)
 {
 ProgressMessageHandler progress = new ProgressMessageHandler();
 progress.HttpSendProgress += (s, e) =>
 {
 progressAction?.Invoke(s, e);
 };
 
 var vHttpClient = HttpClientFactory.Create(progress);
 vHttpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
 
 
 List<FileStream> files = new();
 List<StreamContent> streams = new();
 
 try
 {
 if (!string.IsNullOrEmpty(token))
 {
 vHttpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
 }
 vHttpClient.Timeout = TimeSpan.FromMinutes(20);
 
 
 var vBuilder = new StringBuilder();
 vBuilder.Append(baseAddress);
 vBuilder.Append(requestUrl);
 
 
 var vMultipartForm = new MultipartFormDataContent();
 
 if (parameters != null && parameters.Count >= 1)
 {
 foreach (var parameter in parameters)
 {
 vMultipartForm.Add(new StringContent(parameter.Value?.ToString() ?? string.Empty), parameter.Key);
 }
 }
 
 
 if (parameterFiles != null && parameterFiles.Count >= 1)
 {
 foreach (var parameterFile in parameterFiles)
 {
 string filePath = parameterFile.Value;
 var fileName = Path.GetFileName(filePath);
 
 var fileStream = File.OpenRead(filePath);
 files.Add(fileStream);
 var streamContent = new StreamContent(fileStream);
 streams.Add(streamContent);
 vMultipartForm.Add(streamContent, parameterFile.Key, fileName);
 }
 }
 
 using var vResponse = await vHttpClient.PostAsync(vBuilder.ToString(), vMultipartForm);
 if (vResponse.StatusCode == HttpStatusCode.OK)
 {
 return typeof(T).FullName.Equals("System.String") || typeof(T).FullName.Equals("System.Boolean")
 ? (T)Convert.ChangeType(await vResponse.Content.ReadAsStringAsync(), typeof(T))
 : JsonConvert.DeserializeObject<T>(await vResponse.Content.ReadAsStringAsync());
 }
 else
 {
 return default;
 }
 }
 catch (Exception)
 {
 return default;
 }
 finally
 {
 foreach (var item in files)
 {
 item.Dispose();
 }
 files.Clear();
 
 foreach (var item in streams)
 {
 item.Dispose();
 }
 streams.Clear();
 
 vHttpClient.Dispose();
 vHttpClient = null;
 GC.Collect();
 }
 }
 
 |