Add metrics

NostrStreamer/NostrStreamer.csproj

@@ -48,5 +48,6 @@
       </PackageReference>
       <PackageReference Include="Nostr.Client" Version="1.4.2" />
       <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.4" />
+      <PackageReference Include="prometheus-net.AspNetCore" Version="8.0.1" />
     </ItemGroup>
 </Project>

NostrStreamer/Program.cs

@@ -10,6 +10,7 @@ using NostrStreamer.Services.Background;
 using NostrStreamer.Services.Dvr;
 using NostrStreamer.Services.StreamManager;
 using NostrStreamer.Services.Thumbnail;
+using Prometheus;
 
 namespace NostrStreamer;
 
@@ -82,10 +83,14 @@ internal static class Program
             await db.Database.MigrateAsync();
         }
 
+        app.UseRouting();
         app.UseCors(o => o.AllowAnyHeader().AllowAnyMethod().AllowAnyOrigin());
+        app.UseHttpMetrics();
         app.UseAuthorization();
+
         app.MapRazorPages();
         app.MapControllers();
+        app.MapMetrics();
 
         await app.RunAsync();
     }