carloswm85

Week 6 - Teach One Another: Orchestration

Choose a scenario

Scenario B: An e-commerce app with a Node.js container (backend), a React container (frontend), and a PostgreSQL container (database).

Discuss the following

Identify the key components (services) in your scenario (e.g., frontend, backend, database).

carloswm85

Why SSH Authentication Exists and Its Value for Git Repositories

SSH authentication provides secure, encrypted access to remote systems and services, replacing insecure protocols like Telnet with cryptographic key pairs for authentication. It enables safe remote command execution, file transfers, and server management over untrusted networks without exposing passwords.

The Foundation of SSH Authentication

SSH (Secure Shell) emerged as a replacement for vulnerable protocols, leveraging public-key cryptography where a private key remains local while a public key verifies identity on the server. The authentication flow uses asymmetric encryption to confirm access without transmitting credentials over the network.

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carloswm85

• Full Example - Identity API: Pet Shop
  • What's Included
  • Why This is Forward-Thinking
  • Code: 🏪 PET SHOP AUTHORIZATION - POLICY-BASED DESIGN (Modern ASP.NET Core)
    • 1️⃣ DOMAIN MODELS
    • 2️⃣ AUTHORIZATION REQUIREMENTS (Business Rules)
    • 3️⃣ AUTHORIZATION HANDLERS (Business Logic)
    • 4️⃣ PROGRAM.CS - POLICY REGISTRATION (Modern approach)
    • 5️⃣ CONTROLLER - POLICY USAGE
• 6️⃣ USAGE EXAMPLES & SCENARIOS

carloswm85

Admin User Complete Lifecycle Flow

Sequence diagram showing the complete lifecycle of an admin user from login to logout, including all CRUD operations. This format is perfect for showing the temporal flow and interactions between components.

What the Diagram Shows:

🔵 Authentication Phase (Steps 1-6)

• User enters credentials
• System validates and creates claims (including "Admin" role)
• Token/cookie is generated and sent to user

carloswm85

• Layered (N-Tier) Architecture in .NET Core
  • Overview
  • 1. Presentation Layer (API Controllers)
    • Products Controller
    • Orders Controller
  • 2. Application Layer (Services)
    • Product Service
    • Order Service
  • 3. Business Logic Layer (Managers)
• Product Manager

carloswm85

https://www.perplexity.ai/search/level-layers-functionality-tec-XUGF.P3OQ222h9LUWsYxIw#3

"Supplement with specific repositories for complex queries" means that besides having a general, often generic repository for simple CRUD operations, you create specialized repository classes to handle more elaborate and performance-sensitive data retrieval needs that don't fit well into simple CRUD patterns. These specialized repositories encapsulate complex querying logic, using techniques like joins, projections, or raw SQL for efficiency.

Examples and Patterns:

1. Specific Repository for Complex Queries
   • For example, you might have a generic IRepository<T> for basic CRUD, but also an IInvoiceRepository with methods like:

public interface IInvoiceRepository : IRepository

carloswm85

[AttributeUsage(AttributeTargets.Property)]
public class UpperCaseAttribute : Attribute
{
}

public static class AttributeProcessor
{
  public static void ApplyUpperCase(object obj)
  {

carloswm85

using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using iText.Kernel.Exceptions;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas.Draw;
using iText.Layout;

carloswm85

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas.Draw;
using iText.Layout;
using iText.Layout.Element;
using iText.Layout.Properties;

carloswm85

Instalaciones recomendadas - Curso de .NET Backend

• .NET

• Docker Desktop