NMillard

public class User {

  // Terrible property - this can be set to anything without reason
  public string Username { get; set; }
  
  
  // slightly better, but requires additional field
  // and we still wouldn't know why "username2" changed
  private string username2;
  public string Username2 {

NMillard

public class Iban {
  private readonly string plainIban;

  private Iban(string iban) {
    if (!Validate(iban)) throw new ArgumentException();
    plainIban = iban;
  }

  private bool Validate(string ibanToValidate) {
    // validation (check length, validate check digits and sum, etc.)

NMillard

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text.Json;

namespace DesignPatterns.DynamicStrategy {
    class Program {
        static void Main(string[] args) {
            /*

NMillard

// ... imports

namespace Authentication.WebClient.Controllers {
    [ApiController]
    [Route("api/[controller]/[action]")]
    public class AuthorizationController : ControllerBase {
        private readonly IConfiguration configuration;

        public AuthorizationController(IConfiguration configuration) {
            this.configuration = configuration; // Needed to access the stored  JWT secret key

NMillard

// ... imports

namespace Authentication.WebClient {
    public class Startup {
        private readonly IConfiguration configuration;

        public Startup(IConfiguration configuration) {
            this.configuration = configuration;
        }

NMillard

class Program {
        static void Main(string[] args) {
            using RSA rsa = RSA.Create();
            Console.WriteLine($"-----Private key-----{Environment.NewLine}{Convert.ToBase64String(rsa.ExportRSAPrivateKey())}{Environment.NewLine}");
            Console.WriteLine($"-----Public key-----{Environment.NewLine}{Convert.ToBase64String(rsa.ExportRSAPublicKey())}");
        }
}

NMillard

{
  "Jwt": {
    "Symmetric": {
      "Key": ""
    },
    "Asymmetric": {
      "PrivateKey": "", 
      "PublicKey": "MIIBCgKCAQEAsXoUruE3QybI3ygaARBUl0e663kxvylbSqlLBPf/lONUpWNucph5RQK/9WepNS/Z42Y79x+jf6MyPkgpMoLiiYB6Nzm5ssmZHg0ImzLmdyc3enCA0/TNrX8QBqieeLmm4Qja2pgsqtX7ae4En2Mr38qLrrpiMOXRqtxgVYqi+Lv9UxfVkRwHB4C+wc9FkM0IhmCja+AvpvtG7UBskPYLRB8o9gELVggKpV9t48yIEtJXG97BzmH3anEYZJY611NylZ1VUbnFbmRGJjAqF6Gy4bcGJbJrRlEQSGZT7mKKlxEijBR1VjADaQc8YVQXI76q1B3NiBcfvPSOJ+MSszd36QIDAQAB" 
    }
  },

NMillard

// ... imports

namespace Authentication.WebClient.Controllers {
    
    [ApiController]
    [Route("api/[controller]/[action]")]
    public class AuthorizationController : ControllerBase {
        private readonly IConfiguration configuration;

        public AuthorizationController(IConfiguration configuration) {

NMillard

// ... imports

namespace Authentication.WebClient {
    public class Startup {
        private readonly IConfiguration configuration;

        public Startup(IConfiguration configuration) {
            this.configuration = configuration;
        }
        

NMillard

using EFPractice.DataLayer.Interfaces;
using EFPractice.Domain;
using Microsoft.EntityFrameworkCore;

namespace EFPractice.DataLayer {
    internal class ApplicationContext : DbContext, IDataStore {
        public ApplicationContext(DbContextOptions options) : base(options) {}
        
        public DbSet<Author> Authors { get; set; }
        public DbSet<Book> Books { get; set; }