davepcallan

// appsettings.json (Configuration)
{
  "BankingOptions": {
    "SavingsInterestRate": 3.5,
    "LoanLimit": 50000,
    "MinimumBalance": 1000
  }
}

// BankingService.cs (Service that Reads Configuration Directly)

davepcallan

using Xunit;
using System.Collections.Generic;

public static class FizzBuzz
{
    public static string GetOutput(int number)
    {
        return number switch
        {
            _ when number % 15 == 0 => "FizzBuzz",

davepcallan

using System;
using Xunit;

public class ListNode
{
    public int Value;
    public ListNode Next;

    public ListNode(int value = 0, ListNode next = null)
    {

davepcallan

davepcallan

  using Microsoft.AspNetCore.Mvc;

  var builder = WebApplication.CreateBuilder(args);



  // 1. Define the Pricing Strategy Interface
  public interface ITicketPricingStrategy
  {
      decimal CalculatePrice(int basePrice, int seatTier);

davepcallan

public abstract class HotelBookingTemplate
{
    // Template Method
    public void BookRoom()
    {
        SelectRoom();
        ProcessPayment();
        ApplyDiscount();
        SendBookingConfirmation();
    }

davepcallan

using Microsoft.AspNetCore.RateLimiting;
using System.Threading.RateLimiting;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddRateLimiter(options =>
{
    // 1. Fixed Window Limiter (20 requests per 2 minutes)
    // -----------------------------------------------
    // |----------------- 2 min -----------------|

davepcallan

using Microsoft.EntityFrameworkCore.Diagnostics;
using System.Data.Common;

namespace EntityFrameworkExamples;

public class SlowQueryInterceptor(ILogger<SlowQueryInterceptor> logger) : DbCommandInterceptor
{
    private const int _slowQueryThresholdInMilliseconds = 5; //from config

    public override DbDataReader ReaderExecuted(

davepcallan

// 1. Order Entity
namespace VerticalSliceExample.Domain;

public class Order
{
    public int Id { get; set; }
    public int CustomerId { get; set; }
    public Dictionary<int, int> Products { get; set; } = new(); // ProductId -> Quantity
    public decimal TotalAmount { get; private set; }
    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

davepcallan

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Columns;
using BenchmarkDotNet.Configs;
using BenchmarkDotNet.Environments;
using BenchmarkDotNet.Jobs;
using BenchmarkDotNet.Reports;
using System;
using System.Collections.Generic;
using System.Linq;