diff --git a/common/services/ASC.ApiSystem/ASC.ApiSystem.csproj b/common/services/ASC.ApiSystem/ASC.ApiSystem.csproj
index 56e6587970..ca1ef0c086 100644
--- a/common/services/ASC.ApiSystem/ASC.ApiSystem.csproj
+++ b/common/services/ASC.ApiSystem/ASC.ApiSystem.csproj
@@ -21,6 +21,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\..\web\ASC.Web.Core\ASC.Web.Core.csproj" />
+    <ProjectReference Include="..\..\ASC.Api.Core\ASC.Api.Core.csproj" />
     <ProjectReference Include="..\..\ASC.Common\ASC.Common.csproj" />
     <ProjectReference Include="..\..\ASC.Core.Common\ASC.Core.Common.csproj" />
   </ItemGroup>
diff --git a/common/services/ASC.ApiSystem/Startup.cs b/common/services/ASC.ApiSystem/Startup.cs
index 370290086f..023e263dfd 100644
--- a/common/services/ASC.ApiSystem/Startup.cs
+++ b/common/services/ASC.ApiSystem/Startup.cs
@@ -24,6 +24,7 @@
 */
 
 
+using ASC.Api.Core;
 using ASC.ApiSystem.Classes;
 using ASC.ApiSystem.Controllers;
 using ASC.Common;
@@ -35,7 +36,6 @@ using Autofac;
 
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Builder;
-using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -44,20 +44,20 @@ using Microsoft.Extensions.Hosting;
 
 namespace ASC.ApiSystem
 {
-    public class Startup
+    public class Startup : BaseWorkerStartup
     {
-        public IConfiguration Configuration { get; }
         public IHostEnvironment HostEnvironment { get; }
 
-        public Startup(IConfiguration configuration, IHostEnvironment hostEnvironment)
+        public Startup(IConfiguration configuration, IHostEnvironment hostEnvironment) : base(configuration)
         {
-            Configuration = configuration;
             HostEnvironment = hostEnvironment;
         }
 
         // This method gets called by the runtime. Use this method to add services to the container.
-        public void ConfigureServices(IServiceCollection services)
+        public override void ConfigureServices(IServiceCollection services)
         {
+            base.ConfigureServices(services);
+
             var diHelper = new DIHelper(services);
 
             services.AddHttpContextAccessor();
@@ -87,12 +87,9 @@ namespace ASC.ApiSystem
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
-        {
-            if (env.IsDevelopment())
-            {
-                app.UseDeveloperExceptionPage();
-            }
+        public override void Configure(IApplicationBuilder app)
+        {
+            base.Configure(app);
 
             app.UseForwardedHeaders(new ForwardedHeadersOptions
             {