Program.cs

using EfCoreApiExample.src.Data;
using EfCoreApiExample.src.Middleware;
using EfCoreApiExample.src.Repositories;
using EfCoreApiExample.src.Repositories.Interfaces;
using EfCoreApiExample.src.Services;
using EfCoreApiExample.src.Services.Interfaces;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddScoped<ICustomerRepository, CustomerRepository>();
builder.Services.AddScoped<ICustomerService, CustomerService>();

builder.Services.AddScoped<IOrderRepository, OrderRepository>();
builder.Services.AddScoped<IOrderItemRepository, OrderItemRepository>();
builder.Services.AddScoped<IOrderService, OrderService>();

builder.Services.AddScoped<IProductRepository, ProductRepository>();
builder.Services.AddScoped<IProductService, ProductService>();

builder.Services.AddControllers();
builder.Services.AddDbContext<AppDbContext>(options => options.UseSqlite("Data Source=app.db"));

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();

    // Host the Swagger UI at the application's root ("/")
    app.UseSwaggerUI(options =>
    {
        options.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
        options.RoutePrefix = string.Empty;
    });
}

app.UseMiddleware<GlobalExceptionMiddleware>();

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

// Ensure database exist and apply any pending migrations on startup
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
    try
    {
        db.Database.EnsureCreated();
    }
    catch (Exception ex)
    {
        app.Logger.LogError(ex, "An error occurred while initialising the database.");
        throw;
    }
}

app.Run();