program.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

var builder = WebApplication.CreateBuilder(args);

// Configure the database
builder.Services.AddDbContext<AppDbContext>(options =>
    options.UseSqlite("Data Source=users.db"));

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

var app = builder.Build();

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

app.UseHttpsRedirection();

// Seed the database
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
    db.Database.Migrate();
    if (!db.Users.Any())
    {
        db.Users.AddRange(new User { Name = "Alice" }, new User { Name = "Bob" });
        db.SaveChanges();
    }
}

// Define API endpoints
app.MapGet("/users", async (AppDbContext db) =>
    await db.Users.ToListAsync());

app.Run();

// Database context
class AppDbContext : DbContext
{
    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
    public DbSet<User> Users => Set<User>();
}

// User model
class User
{
    public int Id { get; set; }
    public string Name { get; set; }
}