Fix: Handled responses with null content

Web/API/Request.cs

@@ -51,22 +51,22 @@
         /// <summary>
         /// Gets the JSON body content of the request.
         /// </summary>
         public object Body { get; private set; } = null;
 
         /// <summary>
         /// Gets the binary document content of the request.
         /// </summary>
         public byte[] DocumentBody { get; private set; } = null;
 
         /// <summary>
         /// Gets the name of the binary document file.
         /// </summary>
         public string DocumentFileName { get; private set; } = null;
 
         /// <summary>
         /// Gets the content type of the request.
         /// </summary>
         public string ContentType { get; private set; } = null;
         #endregion
 
         #region Constructors
@@ -391,18 +391,28 @@
                 response = await _httpClient.SendAsync(request);
                 result.StatusCode = (int)response.StatusCode;
 
+                if (
+                    response.Content == null ||
+                    string.IsNullOrEmpty(await response.Content.ReadAsStringAsync())
+                )
+                {
+                    result.Value = default;
+
+                    return result;
+                }
+
                 if (response.IsSuccessStatusCode)
                 {
-                    string MediaType = response.Content?.Headers?.ContentType?.MediaType.ToLower();
+                    string? MediaType = response.Content?.Headers?.ContentType?.MediaType.ToLower();
                     string ContentResponse = await response.Content?.ReadAsStringAsync();
 
                     switch (true)
                     {
                         case bool b when (MediaType.Contains("application/xml")):
                             XmlSerializer xmlSerializer = new(typeof(T));
                             StringReader reader = new(ContentResponse);
 
                             result.Value = (T)xmlSerializer.Deserialize(reader);
                             break;
                         case bool b when (MediaType.Contains("application/json")):
                             result.Value = JsonConvert.DeserializeObject<T>(ContentResponse);