add comments for swagger

AB-API/Program.cs

@@ -6,6 +6,7 @@ using AB.Services.Abstractions;
 using AB_API.Middleware;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.OpenApi.Models;
+using System.Reflection;
 using System.Text.Json.Serialization;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -17,7 +18,18 @@ builder.Services.AddControllers().AddApplicationPart(typeof(AB.API.AssemblyRefer
 
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
-builder.Services.AddSwaggerGen(c => c.SwaggerDoc("v1", new OpenApiInfo { Title = "AB-API", Version = "v1", Description = "An Api for the AB-Application" }));
+builder.Services.AddSwaggerGen(c =>
+{
+    c.SwaggerDoc("v1", new OpenApiInfo
+    {
+        Title = "AB-API",
+        Version = "v1",
+        Description = "An Api for the AB-Application"
+    });
+
+    var xmlFilename = $"{typeof(AB.API.AssemblyReference).Assembly.GetName().Name}.xml";
+    c.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, xmlFilename));
+});
 
 builder.Services.AddScoped<ICustomerService, CustomerService>();
 builder.Services.AddScoped<ICustomerRepository, CustomerRepository>();