GraphQLTest: Add Proxy config

Modules.Interfaces/GraphQLInterface.vb

@@ -13,9 +13,10 @@ Public Class GraphQLInterface
     Private _userPassword As String
     Private _certificate As X509Certificate
     Private _cookieJar As CookieContainer
-
     Private _Encoding As New UTF8Encoding
 
+    Public Property Proxy As WebProxy
+
     Public Sub New(LogConfig As LogConfig, BaseUrl As String, Email As String, Password As String, CertificateFile As String, CertificatePassword As String)
         Try
             _logConfig = LogConfig
@@ -92,6 +93,9 @@ Public Class GraphQLInterface
 
     Private Function GetRequest(Url As String, PostData As Byte()) As HttpWebRequest
         Try
+            ServicePointManager.Expect100Continue = True
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls Or SecurityProtocolType.Tls11 Or SecurityProtocolType.Tls12
+
             Dim oRequest As HttpWebRequest = WebRequest.Create($"{_baseUrl}{Url}")
             oRequest.Method = "POST"
             oRequest.ContentType = "application/json"
@@ -99,6 +103,10 @@ Public Class GraphQLInterface
             oRequest.ClientCertificates.Add(_certificate)
             oRequest.CookieContainer = GetCookies()
 
+            If Proxy IsNot Nothing Then
+                oRequest.Proxy = Proxy
+            End If
+
             Return oRequest
         Catch ex As Exception
             _logger.Error(ex)