Program.cs

using Microsoft.EntityFrameworkCore;
using ESC.Data;
using ESC.Repositories;
using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Mvc;
using Swashbuckle.AspNetCore.SwaggerGen;
using System.Reflection;

AppDomain.CurrentDomain.SetData("DataDirectory", Path.Combine(Directory.GetCurrentDirectory(), "Database"));

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddControllersWithViews()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.ReferenceHandler = System.Text.Json.Serialization.ReferenceHandler.IgnoreCycles;
        options.JsonSerializerOptions.DefaultIgnoreCondition = System.Text.Json.Serialization.JsonIgnoreCondition.WhenWritingNull;
    });

builder.Services.AddDbContext<HRDbContext>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));

builder.Services.AddScoped<IEmployeeRepository, EmployeeRepository>();

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(options =>
{
    // Only include controllers with [ApiController] attribute
    options.CustomOperationIds(apiDesc =>
    {
        return apiDesc.TryGetMethodInfo(out MethodInfo methodInfo) ? methodInfo.Name : null;
    });
    options.DocInclusionPredicate((docName, apiDesc) =>
    {
        if (apiDesc.ActionDescriptor is ControllerActionDescriptor cad)
        {
            return cad.ControllerTypeInfo.GetCustomAttribute<ApiControllerAttribute>() != null;
        }
        return false;
    });
});

var app = builder.Build();

if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    app.UseHsts();
}

app.UseHttpsRedirection();

app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.UseSwagger();
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "ESC API V1");
    c.RoutePrefix = "swagger";
});

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllers();

    endpoints.MapControllerRoute(
        name: "default",
        pattern: "{controller=Employees}/{action=ViewEmployees}/{id?}");
});

app.Run();