refactor: introduce MediatR configuration parameter to AddCqrs (#333)

Author: cnblogs-dudu

src/Cnblogs.Architecture.Ddd.Cqrs.DependencyInjection/ServiceCollectionInjector.cs

@@ -1,4 +1,4 @@
-using System.Reflection;
+using System.Reflection;
 using Cnblogs.Architecture.Ddd.Cqrs.Abstractions;
 using Cnblogs.Architecture.Ddd.Cqrs.DependencyInjection;
 using MediatR;
@@ -18,6 +18,21 @@ public static class ServiceCollectionInjector
     /// <param name="assemblies">命令/查询所在的程序集。</param>
     /// <returns></returns>
     public static CqrsInjector AddCqrs(this IServiceCollection services, params Assembly[] assemblies)
+    {
+        return services.AddCqrs(null, assemblies);
+    }
+
+    /// <summary>
+    ///     添加 Cqrs 支持。
+    /// </summary>
+    /// <param name="services"><see cref="IServiceCollection" />。</param>
+    /// <param name="configuration">The action used to configure the MediatRServiceConfiguration.</param>
+    /// <param name="assemblies">命令/查询所在的程序集。</param>
+    /// <returns></returns>
+    public static CqrsInjector AddCqrs(
+        this IServiceCollection services,
+        Action<MediatRServiceConfiguration>? configuration,
+        params Assembly[] assemblies)
     {
         services.AddTransient(typeof(IPipelineBehavior<,>), typeof(ValidationBehavior<,>));
         services.AddTransient(typeof(IPipelineBehavior<,>), typeof(LoggingBehavior<,>));
@@ -27,7 +42,12 @@ public static CqrsInjector AddCqrs(this IServiceCollection services, params Asse
             assemblies = [typeof(CqrsInjector).Assembly];
         }
 
-        services.AddMediatR(cfg => cfg.RegisterServicesFromAssemblies(assemblies));
+        services.AddMediatR(cfg =>
+        {
+            cfg.RegisterServicesFromAssemblies(assemblies);
+            configuration?.Invoke(cfg);
+        });
+
         return new CqrsInjector(services);
     }
 }