Switched Azure Function to ASP.net

Registration/Program.cs

@@ -1,36 +1,76 @@
-using Microsoft.Azure.Functions.Worker;
+using Microsoft.Azure.Functions.Worker;           // ← SWAP: remove for AspNetCore
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Identity.Web;
 using Registration.Data;
 using Registration.Mock;
 
+// ─────────────────────────────────────────────────────────────────────────────
+// Shared service registrations — identical in both hosting modes.
+// Never changes regardless of which block is active below.
+// ─────────────────────────────────────────────────────────────────────────────
+void ConfigureServices(IServiceCollection services, IConfiguration config)
+{
+    // JWT authentication — Entra External ID (CIAM)
+    // Validates Bearer tokens issued by usimclients.ciamlogin.com.
+    // AzureAd config comes from local.settings.json (Functions) or
+    // appsettings.json / environment variables (AspNetCore).
+    services.AddAuthentication()
+        .AddMicrosoftIdentityWebApi(config.GetSection("AzureAd"));
+
+    services.AddAuthorization();
+
+    // Data layer — swap between MockDataService (no DB) and SqlDataService (dbRegistration).
+    // MockDataService:  no connection string required, seeds 4 test applicants.
+    // SqlDataService:   requires ConnectionStrings:Sql pointed at dbRegistration.
+    //                   Calls dbo.spRegistration with @action/@rqst/@resp OUTPUT pattern.
+    services.AddSingleton<SqlService>();
+    services.AddSingleton<IRegistrationDataService, SqlDataService>();
+    // ── swap data layer here if needed ──────────────────────────────────────
+    // services.AddSingleton<IRegistrationDataService, MockDataService>();
+}
+
+// ═════════════════════════════════════════════════════════════════════════════
+// SWAP: Azure Functions host
+// Active when deployed to Azure Functions or running via: func start
+// ═════════════════════════════════════════════════════════════════════════════
 var host = new HostBuilder()
     .ConfigureFunctionsWebApplication()
-    .ConfigureServices((context, services) =>
+    .ConfigureServices((ctx, services) =>
     {
         services.AddApplicationInsightsTelemetryWorkerService();
         services.ConfigureFunctionsApplicationInsights();
-
-        // =============================================================
-        // JWT Authentication — Entra External ID (CIAM)
-        // Validates Bearer tokens issued by usimclients.ciamlogin.com.
-        // AzureAd config is in local.settings.json (dev) or Function App
-        // Configuration (production) using AzureAd__ prefix.
-        // =============================================================
-        services.AddAuthentication()
-            .AddMicrosoftIdentityWebApi(context.Configuration.GetSection("AzureAd"));
-
-        services.AddAuthorization();
-
-        // =============================================================
-        // Data layer — SqlDataService backed by dbRegistration.
-        // Connection string: ConnectionStrings:Sql in local.settings.json
-        // or the "Sql" connection string in Function App Configuration.
-        // =============================================================
-        services.AddSingleton<SqlService>();
-        services.AddSingleton<IRegistrationDataService, SqlDataService>();
+        ConfigureServices(services, ctx.Configuration);
     })
     .Build();
 
 host.Run();
+
+// ═════════════════════════════════════════════════════════════════════════════
+// SWAP: ASP.NET Core host
+// Active when running in podman-compose or dotnet run (self-hosted).
+// Also update RegistrationFunctions.cs and Registration.csproj.
+// ═════════════════════════════════════════════════════════════════════════════
+// var builder = WebApplication.CreateBuilder(args);
+// 
+// ConfigureServices(builder.Services, builder.Configuration);
+// builder.Services.AddControllers();
+// 
+// // CORS — replace with actual client origin in production
+// builder.Services.AddCors(options => options.AddDefaultPolicy(policy =>
+//     policy.WithOrigins(
+//             builder.Configuration["Cors:AllowedOrigin"] ?? "http://localhost:3001"
+//         )
+//         .AllowAnyHeader()
+//         .AllowAnyMethod()));
+// 
+// var app = builder.Build();
+// 
+// app.UseCors();
+// app.UseAuthentication();
+// app.UseAuthorization();
+// app.MapControllers();
+// 
+// await app.RunAsync();
+// ─────────────────────────────────────────────────────────────────────────────