Update Oauth2TokenManager to resolve issue with expiring token.

src/SDK/Internal/ApplicationLogger.cs

@@ -1,4 +1,6 @@
-using System;
+#define TRACE
+
+using System;
 using System.Diagnostics;
 
 namespace OneSpanSign.Sdk.Internal

src/SDK/Internal/UrlTemplate.cs

@@ -206,7 +206,6 @@ public class UrlTemplate
         public static readonly string ACCOUNT_FEATURE_SETTINGS_PATH = "/account/admin/accountSettings/featureSettings";
         // Account Package Settings Service
         public static readonly string ACCOUNT_PACKAGE_SETTINGS_PATH = "/account/admin/accountSettings/packageSettings";
-
         //Account Designer Settings Service
         public static readonly String ACCOUNT_DESIGNER_SETTINGS_PATH = "/account/admin/accountSettings/designerSettings"; 
         //Account Email Reminder Settings Service

src/SDK/Oauth/Oauth2TokenManager.cs

@@ -30,11 +30,14 @@ public bool IsOAuth2TokenExpired(string oAuthAccessToken)
 
             JObject payloadJson = JObject.Parse(payload);
 
-            long unixEpochTime = (long)payloadJson["exp"];
-            DateTime tokenExpiresAt = DateTime.UtcNow.AddSeconds(unixEpochTime);
-            DateTimeOffset now = DateTimeOffset.Now;
-
-            return now > tokenExpiresAt.Subtract(TimeSpan.FromSeconds(AccessTokenExpirationLeeway));
+            //The tokens expiration represented as the number of seconds from 1/1/1970 UTC.
+            long tokenExpireEpoch = (long)payloadJson["exp"];           
+
+            //Convert token expiration to DateTime.
+            var tokenExpiresAt = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+            tokenExpiresAt = tokenExpiresAt.AddSeconds(tokenExpireEpoch);
+
+            return DateTime.UtcNow > tokenExpiresAt.Subtract(TimeSpan.FromSeconds(AccessTokenExpirationLeeway));
         }
     }
 }

src/SDK/Services/AccountConfigService.cs

@@ -205,7 +205,6 @@ public void PatchAccountSystemSettingProperties(AccountSystemSettingProperties a
         public void DeleteAccountSystemSettingProperties() {
             apiClient.DeleteAccountSystemSettingProperties();
         }
-
         public SignatureLayout GetSignatureLayout()
         {
             return apiClient.GetSignatureLayout();

src/SDK/Services/Internal/AccountConfigClient.cs

@@ -670,7 +670,7 @@ public void PatchAccountSystemSettingProperties(AccountSystemSettingProperties a
                 throw new OssException("Could not save the account system settings.", e);
             }
         }
-        
+
         public void DeleteAccountSystemSettingProperties()
         {
             string path = new UrlTemplate(baseUrl).UrlFor(UrlTemplate.ACCOUNT_SYSTEM_SETTING_PROPERTIES_PATH).Build();

src/Samples.Tests/Tests/TextAnchorExtractionExampleTest.cs

@@ -7,7 +7,7 @@ namespace SDK.Examples
     [TestFixture()]
     public class TextAnchorExtractionExampleTest 
     {
-        private double maxErrorAfterScaling = 0.75;
+        private double maxErrorAfterScaling = 0.25;
 
         [Test()]
         public void VerifyResult()

src/Samples/Examples/TextAnchorExtractionExample.cs

@@ -13,7 +13,7 @@ public static void Main (string[] args)
         }
 
         public readonly string DOCUMENT_NAME = "Document With Anchors";
-        public readonly int FIELD_WIDTH = 150;
+        public readonly int FIELD_WIDTH = 151;
         public readonly int FIELD_HEIGHT = 40;
 
         override public void Execute()

src/Samples/default.signers.properties

@@ -5,11 +5,6 @@
 #api.key=<Your APIKey>
 #api.key.WithRolesAndPermission=<Your APIKey for Account With RolesAndPermission >
 
-# Enable this for Client App API token authentication
-#api.auth.type=APITOKEN
-#api.clientId=
-#api.secret=
-
 # Enable this for oAuth2.0 authentication
 api.auth.type=OAUTH
 api.oauth.server.url=https://<oneSpanSignHost>/oauth2/token