Advanced Patterns

Introduction

This guide explores advanced architectural patterns for complex implementations, including pub/sub systems, distributed caching strategies, and microservices orchestration patterns.

Key Patterns

Event sourcing with stream processing
Circuit breaker patterns for resilience
Canary deployment techniques
Rate limiting with sliding window algorithms

Implementation

Define your system's failure tolerance requirements
Choose appropriate patterns based on load characteristics
Implement monitoring for pattern-specific metrics
Test failure scenarios with chaos engineering

Code Example (Node.js)

{'const { CircuitBreaker } = require("opossum");

const breaker = new CircuitBreaker(async () => {
  const response = await fetch("https://api.example.com/advanced");
  return response.json();
}, {
  errorThresholdPercentage: 50,
  resetTimeout: 30000
});

breaker.fire().catch(console.error);'}

Best Practices

Pattern Composition

Combine patterns strategically - not all systems need every advanced technique

Performance Testing

Stress test pattern implementations before production deployment

Common Challenges

Pattern Overuse

Avoid solutionizing - not every problem needs a design pattern

Look for concrete problems before applying patterns

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