Stop talking about the Gang of Four. Their book was published in 1994. Software has changed. Here are 10 modern design patterns you actually need to know.
While Singleton and Factory are still useful, the challenges of distributed systems, cloud computing, and massive datasets have given rise to a new set of patterns.
→ 1. The Strangler Fig Pattern
- Incrementally migrate a legacy system by gradually replacing pieces with new applications and services.
- When to use it: Large monolithic apps that are too risky to replace all at once.
→ 2. The Sidecar Pattern
- Deploy a helper container alongside your main application container for logging, monitoring, or proxying.
- When to use it: In microservices or containerized environments (like Kubernetes) to add functionality without touching code.
Amigoscode
Stop talking about the Gang of Four. Their book was published in 1994. Software has changed. Here are 10 modern design patterns you actually need to know.
While Singleton and Factory are still useful, the challenges of distributed systems, cloud computing, and massive datasets have given rise to a new set of patterns.
→ 1. The Strangler Fig Pattern
- Incrementally migrate a legacy system by gradually replacing pieces with new applications and services.
- When to use it: Large monolithic apps that are too risky to replace all at once.
→ 2. The Sidecar Pattern
- Deploy a helper container alongside your main application container for logging, monitoring, or proxying.
- When to use it: In microservices or containerized environments (like Kubernetes) to add functionality without touching code.
→ 3. CQRS (Command Query Responsibility Segregation)
- Separate models for reading data (queries) and writing data (commands).
- When to use it: Complex domains where read and write patterns differ significantly.
→ 4. Event Sourcing
- Store a sequence of state-changing events instead of current state. Current state is derived by replaying events.
- When to use it: When you need a full audit trail or support complex temporal queries.
→ 5. The Saga Pattern
- Manage long-running transactions in distributed systems without two-phase commit. Each transaction has a compensating transaction.
- When to use it: For managing data consistency across microservices.
→ 6. The Backends for Frontends (BFF) Pattern
- Create a separate backend service for each frontend type (web, mobile). Aggregates and formats data specifically for that frontend.
- When to use it: Multiple frontends with different UI requirements.
→ 7. The Circuit Breaker Pattern
- Monitor failures when calling a remote service. If failures exceed a threshold, trips and fails immediately without contacting the service.
- When to use it: To prevent cascading failures throughout your system.
→ 8. The Leader Election Pattern
- Elect one instance as the "leader" to perform a specific task in a distributed system with multiple instances.
- When to use it: When only one instance should perform a particular action at a time.
→ 9. The Publisher/Subscriber (Pub/Sub) Pattern
- Publishers send messages to a topic; subscribers receive messages without publishers knowing who they are.
- When to use it: To decouple services and enable asynchronous communication.
→ 10. The Throttling Pattern
- Control service consumption by limiting the rate of requests to prevent overload.
- When to use it: To protect your APIs from abuse or overload.
Which of these are you using in your projects? What other modern patterns should be on this list? Comment below!
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3 weeks ago | [YT] | 106