Design patterns are proven ways to shape code so it stays adaptable as systems evolve. They help you build applications that can grow, change, and integrate new behavior without constant rewrites. In this course, you don’t just study patterns; you’ll discover them by solving real Node.js engineering problems.
Each module begins with a practical challenge from everyday backend work, such as changing dependencies, extending features, or introducing runtime flexibility. You’ll explore the pain points first, then reveal how a reusable design emerges as the clean solution.
Through progressive coding exercises, you’ll practice applying these ideas until they become instinctive. By the end, you’ll write Node.js code that’s not only correct but designed, structured to scale, easy to extend, and ready for whatever comes next.
Design patterns are proven ways to shape code so it stays adaptable as systems evolve. They help you build applications that can...Show More
WHAT YOU'LL LEARN
A practical understanding of how design patterns provide reusable solutions to recurring engineering problems in Node.js
A working knowledge of pattern-based structuring to write scalable, maintainable, and flexible backend code
Hands-on experience applying design patterns to solve real-world Node.js challenges such as extensibility, dependency management, and runtime variability
The ability to analyze complex design scenarios and select appropriate patterns based on context, trade-offs, and desired behavior
The confidence to approach backend architecture and refactoring tasks with a structured, problem-solving mindset grounded in design principles
A practical understanding of how design patterns provide reusable solutions to recurring engineering problems in Node.js
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Content
1.
Introduction to Node.js Patterns
2 Lessons
Learn how solid design principles lay the groundwork for building flexible, scalable Node.js systems that stay clean as they grow.
2.
Factory Pattern: Generate Config-Driven Services Dynamically
19 Lessons
Centralize and control object creation to dynamically produce the right service based on runtime context.
Understanding the Factory PatternCreate an Environment-Specific Database Client FactorySolution: Create an Environment-Specific Database Client FactoryAdd Feature-Flagged Logger InstantiationSolution: Add Feature-Flagged Logger InstantiationBuild a Vendor-Agnostic API Client FactorySolution: Build a Vendor-Agnostic API Client FactoryImplement a Config-Driven Notification Service FactorySolution: Implement a Config-Driven Notification Service FactoryDynamically Load a Database Client Using ES ModulesSolution: Dynamically Load a Database Client Using ES ModulesCreate a Pluggable Payment Processor FactorySolution: Create a Pluggable Payment Processor FactoryCreate a Feature-Flagged Analytics ServiceSolution: Create a Feature-Flagged Analytics ServiceBuild a Multi-Tenant Service FactorySolution: Build a Multi-Tenant Service FactoryFactory for Dynamically Composed Middleware ChainsSolution: Factory for Dynamically Composed Middleware Chains
3.
Builder Pattern: Assemble Complex Objects with Fluent APIs
19 Lessons
Construct complex objects step-by-step using a clean, fluent, and readable API.
4.
Decorator Pattern: Extend Behavior Without Modifying Core Logic
19 Lessons
Wrap functions or classes to transparently extend their behavior without changing core logic.
5.
Adapter Pattern: Standardize Interface Across Dependencies
19 Lessons
Bridge incompatible interfaces so different modules can work through a common contract.
6.
Proxy Pattern: Intercept and Control Access Transparently
19 Lessons
Intercept and customize interactions with objects to add control, caching, or access rules dynamically.
7.
Strategy Pattern: Swap Algorithms Based on Context
19 Lessons
Swap entire algorithms or behaviors at runtime through interchangeable implementations.
Certificate of Completion
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