make oembed

Startup.cs

@@ -1,26 +1,36 @@
 using Microsoft.Extensions.Options;
-
+using HeyRed.OEmbed;
 namespace yaflay.ru
 {
     public class Startup
     {
         private readonly IConfiguration configuration;
+        private readonly OEmbedOptions options;
         public Startup()
         {
             configuration = new ConfigurationBuilder()
                 .AddEnvironmentVariables(prefix: "m.")
                 .AddJsonFile("appsettings.json", optional: true)
                 .Build();
+            options = new OEmbedOptions()
+            {
+                EnableCache = true
+            };
         }
         public void ConfigureServices(IServiceCollection services)
         {
             services.AddControllers();
             services.AddRouting();
             services.AddRazorPages();
+            services.AddOEmbed(options =>
+            {
+                options.EnableCache = true; // true by default
+                options.EnsureNotNull();
+            });
             //services.AddDirectoryBrowser();
-            
+
-            
+
-            
+
         }
 
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)

yaflay.ru.csproj

@@ -12,6 +12,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.18.1" />
+    <PackageReference Include="OEmbed" Version="3.0.0" />
+    <PackageReference Include="OEmbed.Extensions.Microsoft.DependencyInjection" Version="3.0.0" />
   </ItemGroup>
 
 </Project>