diff --git a/IRaCIS.Core.API/appsettings.USDemo.json b/IRaCIS.Core.API/appsettings.USDemo.json
new file mode 100644
index 000000000..2f062f048
--- /dev/null
+++ b/IRaCIS.Core.API/appsettings.USDemo.json
@@ -0,0 +1,33 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "ConnectionStrings": {
+    "RemoteNew": "Server=47.90.161.85,1433\\MSSQLSERVER;Database=IRaCIS_Demo_US;User ID=sa;Password=zhanying2021;TrustServerCertificate=true",
+    "Hangfire": "Server=47.90.161.85,1433\\MSSQLSERVER;Database=Hangfire.IRaCIS_Demo_US;User ID=sa;Password=zhanying2021;TrustServerCertificate=true"
+
+  },
+  "BasicSystemConfig": {
+
+    "OpenUserComplexPassword": false,
+
+    "OpenSignDocumentBeforeWork": false,
+
+    "OpenTrialRelationDelete": true,
+
+    "OpenLoginLimit": false
+  },
+
+  "SystemEmailSendConfig": {
+    "Port": 465,
+    "Host": "smtp.qiye.aliyun.com",
+    "FromEmail": "test@extimaging.com",
+    "FromName": "Test_IRC",
+    "AuthorizationCode": "SHzyyl2021"
+  }
+
+}
diff --git a/IRaCIS.Core.Application/TestService.cs b/IRaCIS.Core.Application/TestService.cs
index 8bbfda763..3cda7135e 100644
--- a/IRaCIS.Core.Application/TestService.cs
+++ b/IRaCIS.Core.Application/TestService.cs
@@ -146,10 +146,9 @@ namespace IRaCIS.Application.Services
         }
 
         [AllowAnonymous]
-        public  async Task<string>  GetEnvironmentName( [FromServices] IWebHostEnvironment env)
+        public  async Task<object>  GetEnvironmentName( [FromServices] IWebHostEnvironment env)
         {
 
-            var a = 102.ToString().Substring(102.ToString().Length - 1);
 
             //update DicomInstance set Path = '/IRaCISData/TrialData/' + cast(DicomInstance.TrialId as varchar) + '/' + DicomInstance.SiteId + '/' + DicomInstance.SubjectId + '/' + DicomInstance.SubjectVisitId + '/Dicom/' + DicomInstance.StudyId + '/' + DicomInstance.Id + '.dcm'
 
@@ -159,7 +158,7 @@ namespace IRaCIS.Application.Services
             //await _repository.BatchUpdateAsync<DicomInstance>(u => !u.Path.Contains(".dcm"), t => new DicomInstance() { Path = $"/{StaticData.Folder.IRaCISDataFolder}/{StaticData.Folder.TrialDataFolder}/{t.TrialId}/{t.SiteId}/{t.SubjectId}/{t.SubjectVisitId}/{StaticData.Folder.DicomFolder}/{t.StudyId}/{t.Id}" });
 
 
-            //return new { env.EnvironmentName , EMailConfig= _systemEmailConfig.CurrentValue,BasicConfig= _basicConfig.CurrentValue} ;
+            return new { env.EnvironmentName, EMailConfig = _systemEmailConfig.CurrentValue, BasicConfig = _basicConfig.CurrentValue };
 
 
             // Load a document.