Courses/TypeScript Design Patterns for Enterprise Applications

Intermediate44 hours28 topics

TypeScript Design Patterns for Enterprise Applications

Master all 23 Gang of Four design patterns implemented in TypeScript. Build production-ready logistics and shipping systems using creational, structural, and behavioral patterns. Learn to recognize when and how to apply each pattern through hands-on workshops in address processing, package tracking, and delivery optimization.

Course Content

TypeScript Fundamentals for Patterns

Master the TypeScript type system features essential for implementing design patterns: interfaces, type aliases, generics, and union/intersection types.

1Why Types Matter for Design Patternslesson15m 2Interfaces and Type Aliasespresentation20m 3Generics for Reusable Patternslesson20m 4Building Type-Safe Address Interfacesinteractive-workshop 5TypeScript Fundamentals Quizquiz

Classes and Inheritance in TypeScript

Learn to build robust class hierarchies with TypeScript's class features including access modifiers, abstract classes, and inheritance patterns essential for design patterns.

1Classes in TypeScriptlesson15m 2Access Modifiers and Encapsulationpresentation15m 3Abstract Classes and Inheritancelesson15m 4Building a Shipping Entity Hierarchyinteractive-workshop 5Classes and Inheritance Quizquiz

Advanced TypeScript for Design Patterns

Explore advanced TypeScript features that enable powerful pattern implementations: utility types, mapped types, conditional types, and type guards.

1Built-in Utility Typeslesson20m 2Mapped Types and Conditional Typespresentation20m 3Type Guards and Type Narrowinglesson15m 4Building Flexible Package Configuration Typesinteractive-workshop 5Advanced TypeScript Quizquiz

Factory Method Pattern

Learn to create objects without specifying their exact classes. Implement a shipping label factory that produces carrier-specific labels for USPS, FedEx, and UPS.

1Introduction to Factory Method Patternlesson20m 2Factory Method Structure and Componentspresentation15m 3Factory Method in TypeScriptlesson15m 4Shipping Label Factoryinteractive-workshop 5Factory Method Pattern Quizquiz

Abstract Factory Pattern

Create families of related objects without specifying concrete classes. Build a country-specific address formatting system with coordinated formatters, validators, and parsers.

1Introduction to Abstract Factory Patternlesson20m 2Abstract Factory Structurepresentation15m 3Factory Patterns Comparisonlesson15m 4Country-Specific Address Formatting Systeminteractive-workshop 5Abstract Factory Pattern Quizquiz

Builder Pattern

Construct complex objects step by step with a fluent interface. Create a shipment builder that assembles sender, recipient, packages, and shipping options with validation.

1Introduction to Builder Patternlesson20m 2Builder Pattern Structurepresentation15m 3Builder Variations in TypeScriptlesson15m 4Shipment Builderinteractive-workshop 5Builder Pattern Quizquiz

Singleton Pattern

Ensure a class has only one instance while providing global access. Implement a configuration manager for shipping rates and carrier credentials.

1Introduction to Singleton Patternlesson15m 2Singleton Implementation Patternspresentation15m 3Singleton Alternativeslesson15m 4Shipping Configuration Managerinteractive-workshop 5Singleton Pattern Quizquiz

Prototype Pattern

Create new objects by cloning existing prototypes. Build an address template system for quick order entry by cloning frequently-used addresses.

1Introduction to Prototype Patternlesson15m 2Deep Cloning Strategiespresentation15m 3Prototype Pattern in TypeScriptlesson15m 4Address Template Systeminteractive-workshop 5Prototype Pattern Quizquiz

Adapter Pattern

Make incompatible interfaces work together. Build adapters that unify different carrier APIs (FedEx, UPS, DHL) into a common shipping interface.

1Introduction to Adapter Patternlesson20m 2Adapter Types and Implementationpresentation15m 3Real-World Adapter Patternslesson15m 4Carrier API Adapterinteractive-workshop 5Adapter Pattern Quizquiz

Bridge Pattern

Separate abstraction from implementation. Build a notification system where message types (shipped, delivered) are independent of delivery channels (email, SMS, push).

1Introduction to Bridge Patternlesson20m 2Bridge Pattern Structurepresentation15m 3Bridge vs Adapter Patternlesson15m 4Notification Bridgeinteractive-workshop 5Bridge Pattern Quizquiz

Composite Pattern

Treat individual objects and compositions uniformly. Model nested shipping containers where packages, boxes, and pallets share a common interface.

1Introduction to Composite Patternlesson20m 2Composite Pattern Structurepresentation15m 3Composite Operations and Traversallesson15m 4Shipping Container Compositeinteractive-workshop 5Composite Pattern Quizquiz

Decorator Pattern

Add responsibilities to objects dynamically. Implement shipping option decorators that add insurance, signature requirements, and fragile handling.

1Introduction to Decorator Patternlesson20m 2Decorator Implementation Patternspresentation15m 3Decorator vs Inheritancelesson15m 4Shipping Options Decoratorinteractive-workshop 5Decorator Pattern Quizquiz

Facade Pattern

Provide a simplified interface to a complex subsystem. Create a ShippingFacade that unifies address validation, rate calculation, and label generation.

1Introduction to Facade Patternlesson15m 2Facade Design Principlespresentation15m 3Real-World Facade Exampleslesson15m 4Unified Shipping API Facadeinteractive-workshop 5Facade Pattern Quizquiz

Flyweight Pattern

Share common state efficiently across many objects. Implement a shared cache for address components like cities, states, and countries.

1Introduction to Flyweight Patternlesson20m 2Flyweight Implementationpresentation15m 3Flyweight Trade-offs and Best Practiceslesson15m 4Address Component Cacheinteractive-workshop 5Flyweight Pattern Quizquiz

Proxy Pattern

Control access to objects through a surrogate. Build a rate-limiting proxy for carrier API calls with caching and access control.

1Introduction to Proxy Patternlesson20m 2Proxy Types and Implementationpresentation15m 3Proxy vs Decoratorlesson15m 4Rate-Limiting Carrier API Proxyinteractive-workshop 5Proxy Pattern Quizquiz

Chain of Responsibility Pattern

Avoid coupling the sender of a request to its receiver by giving multiple objects a chance to handle the request

1Introduction to Chain of Responsibilitylesson20m 2Chain Implementation Patternspresentation15m 3Real-World Chain Exampleslesson15m 4Address Validation Chaininteractive-workshop 5Chain of Responsibility Quizquiz

Command Pattern

Encapsulate a request as an object, allowing parameterization, queuing, and undo/redo operations

1Introduction to the Command Patternlesson20m 2Command Pattern Implementation Deep Divepresentation15m 3Implementing Undo/Redo with the Command Patternlesson15m 4Build Order Command System with Undo/Redointeractive-workshop 5Command Pattern Quizquiz

Interpreter Pattern

Define a representation for a language grammar and an interpreter to process sentences in that language

1Introduction to the Interpreter Patternlesson 2Implementing the Interpreter Patternpresentation 3Interpreter Pattern Deep Divelesson 4Build an Address Format Parser with Interpreter Patterninteractive-workshop 5Interpreter Pattern Quizquiz

Iterator Pattern

Provide a way to access elements of an aggregate object sequentially without exposing its representation

1Introduction to the Iterator Patternlesson 2Iterator Pattern in TypeScriptpresentation 3Advanced Iterator Patternslesson 4Delivery Route Iterator Workshopinteractive-workshop 5Iterator Pattern Quizquiz

Mediator Pattern

Define an object that encapsulates how a set of objects interact, promoting loose coupling

1Introduction to the Mediator Patternlesson 2Implementing the Mediator Pattern in TypeScriptpresentation 3Event Bus Pattern and Mediator vs Observerlesson 4Building an Order Processing Hub with Mediator Patterninteractive-workshop 5Mediator Pattern Quizquiz

Memento Pattern

Capture and externalize an object's internal state so it can be restored later without violating encapsulation

1Introduction to the Memento Patternlesson20m 2Memento Implementation Patternspresentation15m 3Managing Memento Historylesson15m 4Order Draft Management with Mementointeractive-workshop 5Memento Pattern Quizquiz

Observer Pattern

Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified

1Introduction to Observer Patternlesson20m 2Observer Pattern Implementationpresentation15m 3Observer Pattern in TypeScriptlesson15m 4Package Tracking Notificationsinteractive-workshop 5Observer Pattern Quizquiz

State Pattern

Allow an object to alter its behavior when its internal state changes, appearing to change its class

1Introduction to the State Patternlesson20m 2State Pattern Implementation in TypeScriptpresentation15m 3Formal State Machines and Advanced Conceptslesson15m 4Order Lifecycle State Machineinteractive-workshop 5State Pattern Quizquiz

Strategy Pattern

Define a family of algorithms, encapsulate each one, and make them interchangeable at runtime

1Introduction to Strategy Patternlesson 2Strategy Pattern Implementationpresentation 3Strategy Selection and Comparisonlesson 4Rate Calculator Strategies Workshopinteractive-workshop 5Strategy Pattern Quizquiz

Template Method Pattern

Define the skeleton of an algorithm in an operation, deferring some steps to subclasses

1Introduction to Template Method Patternlesson 2Template Method Implementation in TypeScriptpresentation 3Hook Methods and Best Practiceslesson 4Report Generator Workshopinteractive-workshop 5Template Method Pattern Quizquiz

Visitor Pattern

Represent an operation to be performed on the elements of an object structure without changing the classes

1Introduction to the Visitor Patternlesson20m 2Implementing the Visitor Pattern in TypeScriptpresentation15m 3Double Dispatch and Using the Visitor Patternlesson15m 4Package Inspection Systeminteractive-workshop 5Visitor Pattern Quizquiz

Combining Design Patterns

Learn how to effectively combine multiple design patterns to solve complex problems

1Combining Design Patternslesson 2Common Pattern Combinationspresentation15m 3Pattern Selection Guidelesson 4Multi-Pattern Shipping System Interactive Workshopinteractive-workshop 5Pattern Combinations Quizquiz

Capstone: Logistics Order Processing System

Build a complete order processing system using multiple design patterns

1Capstone Project: Complete Logistics Systemlesson30m 2Architecture Design and Pattern Integrationpresentation20m 3Step-by-Step Implementation Guidelesson20m 4Complete Logistics Order Processing Systeminteractive-workshop 5Capstone Logistics System Quizquiz

What you'll learn

Understand the difference between interfaces and type aliases
Define generic types and functions with constraints
Use union and intersection types effectively
Create type-safe address interfaces for logistics systems
Create classes with constructors, properties, and methods
Apply access modifiers (public, private, protected, readonly)

Tags

typescriptdesign-patternsgang-of-fouroopsoftware-architecturelogisticsenterpriserefactoring

Prerequisites

• javascript-es6-foundations