# 06 - Command, Chain of Responsibility and Template Method

Advanced behavioral patterns: Command with undo/redo, Chain of Responsibility for middleware and Template Method for reusable algorithms.

## What you'll learn

- Command = requests as objects, undo/redo, job queues
- Chain of Responsibility = chain of handlers, middleware
- Template Method = algorithm skeleton, hook points
- Use Command for undoable operations
- Use Chain for processing pipelines

*This article is part of the **Design Patterns** series on federicocalo.dev.*

---

## Read the full article

The complete article (12 min read) with code examples, diagrams, and practical exercises is available here:

**➡️ [06 - Command, Chain of Responsibility and Template Method](https://federicocalo.dev/en/blog/command-chain-of-responsibility-template-method-pattern)**

`https://federicocalo.dev/en/blog/command-chain-of-responsibility-template-method-pattern`

---

*By [Federico Calò](https://federicocalo.dev) — Software Developer & Technical Writer*