Octocode MCP

# Software Architecture Resources > Architecture patterns, design principles, and system design for Node.js/TypeScript applications ** Purpose:** Architecture resources for AI agents building Node.js/TypeScript applications **🌐 Focus:** Clean Architecture, DDD, CQRS, Microservices - TypeScript patterns **⚙️ Runtime:** Node.js-based systems with TypeScript design patterns **📅 Updated:** October 13, 2025 --- ## Quick Reference ### System Design (Start Here) - **Essential Learning:** `karanpratapsingh/system-design` (38K+ ⭐) - THE comprehensive guide - **Scalability Patterns:** `binhnguyennus/awesome-scalability` (66K+ ⭐) - Real-world patterns - **Free Resources:** `ashishps1/awesome-system-design-resources` - Curated collection ### Clean Architecture (TypeScript) - **Best DDD Example:** `Sairyss/domain-driven-hexagon` (14K+ ⭐) - Hexagonal + DDD - **Production API:** `rmanguinho/clean-ts-api` (1.9K+ ⭐) - Clean Architecture + TDD - **React Example:** `rmanguinho/clean-react` (1.5K+ ⭐) - Clean Architecture in React ### Design Patterns - **TypeScript Patterns:** `kamranahmedse/design-patterns-for-humans` (47K+ ⭐) - Ultra-simplified - **Gang of Four:** Classic design patterns in TypeScript - **Enterprise Patterns:** `ardalis/CleanArchitecture` (16K+ ⭐) - .NET but concepts apply ### Decision Guide | Need | Choose | Why | |------|--------|-----| | Learning System Design | karanpratapsingh/system-design | Most comprehensive | | Clean Architecture | Sairyss/domain-driven-hexagon | Best TypeScript example | | Scalability | binhnguyennus/awesome-scalability | Real-world patterns | | Design Patterns | kamranahmedse/design-patterns | Ultra-simplified | | Production Backend | rmanguinho/clean-ts-api | TDD + Clean Architecture | --- ## System Design & Scalability ### Essential System Design Resources **⭐ karanpratapsingh/system-design** (38,213 stars) ⚡ #1 ESSENTIAL - Learn how to design systems at scale and prepare for system design interviews - 🔗 https://github.com/karanpratapsingh/system-design - **Use Case:** THE comprehensive system design learning resource - **Why Essential:** Covers distributed systems, databases, caches, load balancers, messaging, microservices, sharding, replication, and consistency **⭐ binhnguyennus/awesome-scalability** (66,010 stars) ⚡ HIGHLY RECOMMENDED - The Patterns of Scalable, Reliable, and Performant Large-Scale Systems - 🔗 https://github.com/binhnguyennus/awesome-scalability - **Use Case:** System scalability patterns and case studies from real-world production systems - **Why Essential:** Real-world patterns from companies like Netflix, Uber, and Airbnb **⭐ ashishps1/awesome-system-design-resources** - Learn System Design concepts and prepare for interviews using free resources - 🔗 https://github.com/ashishps1/awesome-system-design-resources - **Use Case:** Curated collection of free system design learning resources - **2025 Update:** Includes latest interview patterns for FAANG companies ### Interview Preparation **⭐ shashank88/system_design** (9,118 stars) - Preparation links and resources for system design questions - 🔗 https://github.com/shashank88/system_design - **Use Case:** System design interview preparation with practice problems **⭐ Jeevan-kumar-Raj/Grokking-System-Design** (6,162 stars) - Systems design process for defining architecture, modules, interfaces, and data - 🔗 https://github.com/Jeevan-kumar-Raj/Grokking-System-Design - **Use Case:** System design fundamentals with step-by-step approach ### Additional Resources **Recommended Books (2025):** - "System Design Interview – An insider's guide" by Alex Xu (ByteByteGo) - "Designing Data-Intensive Applications" by Martin Kleppmann **Top Courses:** - Grokking the System Design Interview (Educative) - Built by FAANG engineers - ByteByteGo - System design course by Alex Xu **YouTube Channels:** - Gaurav Sen - System Design Playlist - System Design Fight Club (SDFC) - Live problem-solving sessions - Exponent - Short comprehensive solutions --- ## Clean Architecture ### TypeScript Implementations (2025 Focus) **⭐ Sairyss/domain-driven-hexagon** (13,948 stars) ⚡ TOP TYPESCRIPT CHOICE - Learn Domain-Driven Design, software architecture, design patterns, best practices. Code examples included - 🔗 https://github.com/Sairyss/domain-driven-hexagon - **Use Case:** DDD + Hexagonal Architecture with comprehensive TypeScript examples - **2025 Best Practice:** Type-driven development with strong domain boundaries - **Key Features:** Entity design, use cases, dependency injection, event sourcing **⭐ rmanguinho/clean-ts-api** (1,910 stars) - API em NodeJs usando Typescript, TDD, Clean Architecture, Design Patterns e SOLID principles - 🔗 https://github.com/rmanguinho/clean-ts-api - **Use Case:** Production-ready Node.js + TypeScript API with Clean Architecture - **2025 Focus:** Framework-independent business logic, testable architecture **⭐ rmanguinho/clean-react** (1,470 stars) - Sistema em ReactJs usando Hooks, Typescript, TDD, Clean Architecture, Design Patterns e SOLID principles - 🔗 https://github.com/rmanguinho/clean-react - **Use Case:** React with SOLID principles and Clean Architecture - **2025 Pattern:** Separation of UI from business logic ### Multi-Language Implementations **⭐ jasontaylordev/CleanArchitecture** (19,052 stars) - Clean Architecture Solution Template for ASP.NET Core - 🔗 https://github.com/jasontaylordev/CleanArchitecture - **Use Case:** Reference implementation of Clean Architecture principles (.NET) **⭐ ardalis/CleanArchitecture** (17,563 stars) - Clean Architecture Solution Template: A proven template for ASP.NET Core 9 - 🔗 https://github.com/ardalis/CleanArchitecture - **Use Case:** Production-grade Clean Architecture template (.NET) **⭐ alibaba/COLA** (12,678 stars) - 🥤 COLA: Clean Object-oriented & Layered Architecture - 🔗 https://github.com/alibaba/COLA - **Use Case:** Alibaba's Clean Architecture framework (Java) **⭐ bxcodec/go-clean-arch** (9,826 stars) - Go (Golang) Clean Architecture based on Uncle Bob's Clean Architecture - 🔗 https://github.com/bxcodec/go-clean-arch - **Use Case:** Clean Architecture in Go/Golang **⭐ qiangxue/go-rest-api** (1,637 stars) - An idiomatic Go REST API starter kit (boilerplate) following SOLID principles and Clean Architecture - 🔗 https://github.com/qiangxue/go-rest-api - **Use Case:** Go REST API with SOLID principles **⭐ rafaelfgx/Architecture** (3,249 stars) - .NET, Angular, Clean Architecture, Clean Code, SOLID Principles, KISS Principle, DRY Principle - 🔗 https://github.com/rafaelfgx/Architecture - **Use Case:** Multi-principle architecture examples ### 2025 Clean Architecture Best Practices **Core Principles:** - **Separation of Concerns:** Business logic isolated from frameworks and UI - **Dependency Rule:** Dependencies point inward toward business logic - **Framework Independence:** Core business logic doesn't depend on external libraries - **Testability:** Business rules can be tested without UI, database, or external services **TypeScript-Specific:** - Type-driven development enforcing business rules at compile time - Composition over inheritance for flexible architectures - Interface-based dependency injection - Strong typing for domain entities and value objects --- ## Design Patterns **⭐ iluwatar/java-design-patterns** (93,072 stars) ⚡ ESSENTIAL - Design patterns implemented in Java - 🔗 https://github.com/iluwatar/java-design-patterns - **Use Case:** THE most comprehensive design patterns reference - **Coverage:** 200+ design patterns with clear examples - **Categories:** Creational, Structural, Behavioral, Concurrency, Cloud **⭐ kamranahmedse/design-patterns-for-humans** (46,956 stars) - An ultra-simplified explanation to design patterns - 🔗 https://github.com/kamranahmedse/design-patterns-for-humans - **Use Case:** Learn design patterns in simple terms - **Best For:** Beginners and quick reference **⭐ DovAmir/awesome-design-patterns** (44,388 stars) - A curated list of software and architecture related design patterns - 🔗 https://github.com/DovAmir/awesome-design-patterns - **Use Case:** Comprehensive design patterns collection across languages **⭐ faif/python-patterns** (42,258 stars) - A collection of design patterns/idioms in Python - 🔗 https://github.com/faif/python-patterns - **Use Case:** Design patterns in Python **⭐ chuanxshi/javascript-patterns** (9,389 stars) - JavaScript Design Patterns - 🔗 https://github.com/chuanxshi/javascript-patterns - **Use Case:** Design patterns specifically for JavaScript ### TypeScript Design Patterns (2025) **Popular Resources:** - Refactoring.Guru Design Patterns in TypeScript - Fireship.io - 10 Design Patterns in TypeScript Tutorial **Key Patterns for 2025:** 1. **Singleton Pattern:** Global object access with type safety 2. **Factory Pattern:** Type-safe object creation 3. **Observer Pattern:** Reactive type patterns for event-driven architecture 4. **Decorator Pattern:** Extending functionality with TypeScript decorators 5. **Strategy Pattern:** Type-safe algorithm selection 6. **Repository Pattern:** Data access abstraction with strong typing --- ## Microservices Architecture ### Essential Microservices Resources **⭐ mfornos/awesome-microservices** (13,906 stars) ⚡ RECOMMENDED - A curated list of Microservice Architecture related principles and technologies - 🔗 https://github.com/mfornos/awesome-microservices - **Use Case:** Comprehensive microservices resources and patterns - **2025 Update:** AI-powered monitoring and serverless microservices ### Production Frameworks **⭐ go-kratos/kratos** (24,981 stars) - Your ultimate Go microservices framework for the cloud-native era - 🔗 https://github.com/go-kratos/kratos - **Use Case:** Production-ready Go microservices framework - **Features:** gRPC, service discovery, circuit breaker, tracing **⭐ jhipster/generator-jhipster** (22,208 stars) - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures - 🔗 https://github.com/jhipster/generator-jhipster - **Use Case:** Full-stack microservices generator with best practices ### Example Implementations **⭐ sqshq/piggymetrics** (13,737 stars) - Microservice Architecture with Spring Boot, Spring Cloud and Docker - 🔗 https://github.com/sqshq/piggymetrics - **Use Case:** Complete microservices example with Spring ecosystem **⭐ meysamhadeli/booking-microservices** (1,250 stars) - A practical microservices with latest technologies and architectures like Vertical Slice Architecture, Event Sourcing, CQRS, DDD, gRPC, MongoDB - 🔗 https://github.com/meysamhadeli/booking-microservices - **Use Case:** Modern microservices patterns implementation - **2025 Patterns:** Vertical Slice Architecture, Event Sourcing, CQRS **⭐ neuland/micro-frontends** (4,648 stars) - Extending the microservice paradigms to web development - 🔗 https://github.com/neuland/micro-frontends - **Use Case:** Micro-frontends architecture patterns ### Top 5 Microservices Design Patterns (2025) **1. API Gateway Pattern** - Single entry point for all client requests - Handles authentication, rate limiting, load balancing - Routes requests to appropriate microservices - **2025 Focus:** AI-powered intelligent routing and optimization **2. Database per Service Pattern** - Each microservice owns its database - Ensures loose coupling and independent scaling - Prevents single point of failure - **Best Practice:** Use event sourcing for data consistency **3. Service Discovery Pattern** - Dynamic service registration and discovery - No manual configuration required - Enables elastic scaling - **Popular Tools:** Consul, Eureka, etcd **4. CQRS (Command Query Responsibility Segregation)** - Separates read and write operations - Optimizes for different query patterns - Improves scalability and performance - **2025 Trend:** Combined with event sourcing for audit trails **5. Event Sourcing Pattern** - Stores state changes as sequence of events - Enables time travel and audit logging - Supports event-driven architectures - **Use Case:** Financial systems, order processing ### 2025 Microservices Best Practices **Resilience:** - Circuit breakers to prevent cascading failures - Retry policies with exponential backoff - Chaos engineering for testing failure scenarios - Bulkhead pattern for resource isolation **Data Consistency:** - SAGA pattern for distributed transactions - Event-driven communication between services - Eventual consistency over strong consistency - Compensating transactions for rollbacks **Emerging Trends:** - **AI/ML Integration:** Predictive scaling and intelligent monitoring - **Serverless Microservices:** Cost-efficient, auto-scaling without infrastructure management - **Domain-Driven Design:** Mapping services to business functions - **Service Mesh:** Istio, Linkerd for observability and traffic management --- ## TypeScript Best Practices ### Code Quality & Architecture **⭐ labs42io/clean-code-typescript** (9,611 stars) ⚡ ESSENTIAL - Clean Code concepts adapted for TypeScript - 🔗 https://github.com/labs42io/clean-code-typescript - **Use Case:** Clean Code principles for TypeScript developers - **2025 Focus:** Type safety, immutability, functional programming patterns **⭐ AmanVarshney01/create-better-t-stack** (3,854 stars) - Modern CLI tool for scaffolding end-to-end type-safe TypeScript projects with best practices - 🔗 https://github.com/AmanVarshney01/create-better-t-stack - **Use Case:** Scaffold production-ready type-safe TypeScript projects - **Stack:** Next.js, tRPC, Prisma, Tailwind **⭐ vuesion/vuesion** (2,876 stars) - Boilerplate empowering product teams to build faster with modern best practices across engineering and design - 🔗 https://github.com/vuesion/vuesion - **Use Case:** Full-stack Vue.js + TypeScript boilerplate **⭐ TheAlgorithms/TypeScript** (2,412 stars) - Algorithms and Data Structures implemented in TypeScript for beginners, following best practices - 🔗 https://github.com/TheAlgorithms/TypeScript - **Use Case:** Learn algorithms and data structures with TypeScript ### Advanced TypeScript Patterns (2025) **Type-Driven Development:** - Leverage TypeScript's type system to enforce business logic at compile time - Use discriminated unions for state machines - Branded types for domain validation - Template literal types for string manipulation **Composition Patterns:** - Composition over inheritance for flexible architectures - Higher-order functions with proper typing - Decorator pattern with TypeScript decorators - Mixin pattern for code reuse **Advanced Type Patterns:** - Conditional types for type transformations - Mapped types for DRY code - Intersection types for combining behaviors - Type guards for runtime type safety - Utility types (Partial, Pick, Omit, Record) **Reactive Patterns:** - Type-safe RxJS streams - Event emitters with strong typing - Promise-based async patterns - Type-safe state management (Redux, Zustand) ### 2025 TypeScript Statistics - **75% adoption** rate among professional developers (Stack Overflow 2025) - **40% faster onboarding** for new team members - **60% fewer runtime errors** compared to JavaScript - Default language for frontend development in 2025 --- ## SOLID Principles ### Implementation Examples **⭐ rmanguinho/clean-ts-api** (1,910 stars) ⚡ TYPESCRIPT RECOMMENDED - API em NodeJs usando Typescript, TDD, Clean Architecture, Design Patterns e SOLID principles - 🔗 https://github.com/rmanguinho/clean-ts-api - **Use Case:** Node.js + TypeScript API demonstrating all SOLID principles **⭐ rmanguinho/clean-react** (1,470 stars) - Sistema em ReactJs usando Hooks, Typescript, TDD, Clean Architecture, Design Patterns e SOLID principles - 🔗 https://github.com/rmanguinho/clean-react - **Use Case:** React application with SOLID principles **⭐ ochococo/OOD-Principles-In-Swift** (1,902 stars) - 💎 The Principles of OOD (SOLID) based on Uncle Bob articles - 🔗 https://github.com/ochococo/OOD-Principles-In-Swift - **Use Case:** SOLID principles in Swift **⭐ qiangxue/go-rest-api** (1,637 stars) - An idiomatic Go REST API starter kit (boilerplate) following SOLID principles and Clean Architecture - 🔗 https://github.com/qiangxue/go-rest-api - **Use Case:** Go REST API with SOLID principles **⭐ heykarimoff/solid.python** (682 stars) - SOLID Principles explained in Python with examples - 🔗 https://github.com/heykarimoff/solid.python - **Use Case:** SOLID principles in Python **⭐ bespoyasov/solidbook** (642 stars) - Book about the SOLID principles and object-oriented software design - 🔗 https://github.com/bespoyasov/solidbook - **Use Case:** Comprehensive SOLID principles book ### SOLID Principles Quick Reference **S - Single Responsibility Principle** - A class should have only one reason to change - Each module/class should do one thing well **O - Open/Closed Principle** - Open for extension, closed for modification - Use interfaces and abstract classes **L - Liskov Substitution Principle** - Subtypes must be substitutable for their base types - Polymorphism without breaking functionality **I - Interface Segregation Principle** - Many specific interfaces are better than one general interface - Clients shouldn't depend on interfaces they don't use **D - Dependency Inversion Principle** - Depend on abstractions, not concretions - High-level modules shouldn't depend on low-level modules --- ## Architecture Books & Learning Resources **⭐ charlax/professional-programming** (49,488 stars) ⚡ ESSENTIAL - A collection of learning resources for curious software engineers - 🔗 https://github.com/charlax/professional-programming - **Use Case:** Comprehensive professional development resources - **Includes:** Books, articles, courses, and best practices **⭐ joelparkerhenderson/architecture-decision-record** (14,223 stars) - Architecture decision record (ADR) examples for software planning - 🔗 https://github.com/joelparkerhenderson/architecture-decision-record - **Use Case:** ADR templates and best practices for documenting decisions **⭐ mhadidg/software-architecture-books** (10,411 stars) - A comprehensive list of books on Software Architecture - 🔗 https://github.com/mhadidg/software-architecture-books - **Use Case:** Curated architecture book collection **⭐ toutiaoio/awesome-architecture** (9,605 stars) - 架构师技术图谱，助你早日成为架构师 (Architecture Technology Map) - 🔗 https://github.com/toutiaoio/awesome-architecture - **Use Case:** Comprehensive architecture learning path **⭐ android/architecture-samples** (45,332 stars) - Collection of samples showcasing different architectural tools and patterns for Android apps - 🔗 https://github.com/android/architecture-samples - **Use Case:** Architecture patterns with real mobile examples --- ## Performance & Optimization **⭐ davidsonfellipe/awesome-wpo** (8,663 stars) - 📝 A curated list of Web Performance Optimization. Everyone can contribute here! - 🔗 https://github.com/davidsonfellipe/awesome-wpo - **Use Case:** Web performance optimization resources **⭐ sitespeedio/sitespeed.io** (4,931 stars) - Open-source tool for comprehensive web performance analysis - 🔗 https://github.com/sitespeedio/sitespeed.io - **Use Case:** Web performance monitoring and analysis **⭐ GoogleChromeLabs/webpack-libs-optimizations** (3,359 stars) - Using a library in your webpack project? Here's how to optimize it - 🔗 https://github.com/GoogleChromeLabs/webpack-libs-optimizations - **Use Case:** Webpack optimization techniques --- ## Quick Reference: Pattern Selection Guide ### When to Use What **Starting a New Project?** 1. System Design: Start with `karanpratapsingh/system-design` for fundamentals 2. TypeScript: Use `Sairyss/domain-driven-hexagon` for project structure 3. Patterns: Reference `iluwatar/java-design-patterns` for solutions **Building Microservices?** 1. Start: `mfornos/awesome-microservices` for overview 2. Framework: `go-kratos/kratos` (Go) or `jhipster/generator-jhipster` (Java/Spring) 3. Patterns: API Gateway, Database per Service, CQRS, Event Sourcing **TypeScript Architecture?** 1. Clean Code: `labs42io/clean-code-typescript` 2. Clean Architecture: `Sairyss/domain-driven-hexagon` 3. API: `rmanguinho/clean-ts-api` 4. Frontend: `rmanguinho/clean-react` **Preparing for Interviews?** 1. System Design: `karanpratapsingh/system-design` 2. Scalability: `binhnguyennus/awesome-scalability` 3. Courses: Grokking the System Design Interview, ByteByteGo 4. Books: "System Design Interview" by Alex Xu **Need Design Patterns?** 1. Comprehensive: `iluwatar/java-design-patterns` 2. Beginner-friendly: `kamranahmedse/design-patterns-for-humans` 3. TypeScript: Refactoring.Guru TypeScript patterns 4. Language-specific: Python, JavaScript, Swift collections available ### Top 3 Essential Resources (2025) **1. karanpratapsingh/system-design** (38,213 stars) - Why: Most comprehensive system design resource for both learning and interviews - Covers: Distributed systems, scalability, databases, caching, messaging - Best for: All levels from beginners to senior engineers **2. binhnguyennus/awesome-scalability** (66,010 stars) - Why: Real-world production patterns from top tech companies - Covers: Case studies from Netflix, Uber, Airbnb, and more - Best for: Understanding how large-scale systems actually work **3. iluwatar/java-design-patterns** (93,072 stars) - Why: Most complete design patterns reference (200+ patterns) - Covers: All major pattern categories with clear examples - Best for: Reference and implementation guidance ### Key Architecture Patterns for 2025 **Clean Architecture:** - Type-driven development with TypeScript - Framework independence - Testable business logic - Domain-Driven Design integration **Microservices:** - API Gateway for unified entry point - CQRS + Event Sourcing for data consistency - Service mesh for observability - Serverless for cost efficiency **TypeScript Patterns:** - Discriminated unions for type safety - Repository pattern for data access - Dependency injection with interfaces - Composition over inheritance **System Design:** - Horizontal scaling with load balancers - Database sharding and replication - Caching strategies (Redis, CDN) - Message queues for async processing - Circuit breakers for resilience --- *Part of octocode-mcp resources collection*