Add project files.

Core.Cerberos.External/ClientConfiguration/RegisterClientConfiguration.cs

@@ -0,0 +1,59 @@
+using Core.Cerberos.External.Clients;
+using Core.Cerberos.External.GatewayConfigurations;
+using Core.Cerberos.External.Helpers.Token;
+using Lib.Architecture.BuildingBlocks;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Refit;
+
+namespace Core.Cerberos.External.ClientConfiguration
+{
+    public static class RegisterClientConfiguration
+    {
+        public static IServiceCollection RegisterExternalLayer(this IServiceCollection services, IConfiguration configuration)
+        {
+            var gatewayConfiguration = new GatewayConfiguration();
+            var gatewaySettingsConfiguration = new GatewaySettingsConfigurations(configuration);
+
+            // Register GatewayConfiguration as a singleton
+            services.AddSingleton(gatewayConfiguration);
+
+            // Register IHttpContextAccessor
+            services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
+
+            // Register ITokenProvider
+            services.AddSingleton<ITokenProvider, HttpContextTokenProvider>();
+
+            // Register the custom AuthenticatedHttpClientHandler
+            services.AddTransient(provider =>
+            {
+                var tokenProvider = provider.GetRequiredService<ITokenProvider>();
+                var handler = new AuthenticatedHttpClientHandler(tokenProvider)
+                {
+                    InnerHandler = new HttpClientHandler() // Setting the InnerHandler manually
+                };
+                return handler;
+            });
+
+            var cerberosServiceApiUrl = GatewaySettingsConfigurations.GetCerberosServiceAPIEndpoint().Endpoint.Url;
+
+            // Register ICerberosServiceClient with the manually created HttpClient
+            services.AddScoped<ICerberosServiceClient>(provider =>
+            {
+                var handler = provider.GetRequiredService<AuthenticatedHttpClientHandler>();
+                var httpClient = new HttpClient(handler)
+                {
+                    BaseAddress = new Uri(cerberosServiceApiUrl),
+                    Timeout = TimeSpan.FromMinutes(1)
+                };
+                return RestService.For<ICerberosServiceClient>(httpClient);
+            });
+
+            services.AddScoped<IAuthenticationService, AuthenticationService>();
+
+            return services;
+        }
+    }
+}