Program.cs

using Microsoft.EntityFrameworkCore;
using ExpressionCalculatorAPI.Data;


var builder = WebApplication.CreateBuilder(args);
// ```

// Add services
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();


builder.Services.AddDbContext<AppDbContext>(options =>
	options.UseSqlite(builder.Configuration.GetConnectionString("DefaultConnection")));


var app = builder.Build();


// Apply any pending migrations at startup so the database schema
// matches the code model. This is the recommended production approach.
using (var scope = app.Services.CreateScope())
{
	var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
	db.Database.Migrate();
}


// Enable Swagger only in Development to avoid exposing docs in production.
if (app.Environment.IsDevelopment())
{
	app.UseSwagger();
	app.UseSwaggerUI();
}

// Enable HTTPS redirection only outside of Development environments.
if (!app.Environment.IsDevelopment())
{
	app.UseHttpsRedirection();
}
app.UseAuthorization();

// Root: redirect to Swagger UI so visiting the forwarded domain shows a useful page.
app.MapGet("/", () => Results.Redirect("/swagger"));

app.MapControllers();
app.Run();