Middleware Pipeline

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Chain of processing steps. Requests pass through a series of middleware functions, each of which can process, transform, or short-circuit the request. Common in Express.js, Django, ASP.NET, and other web frameworks.

Key Properties

• Request Response Pipeline
• Next Function
• Composable Handlers

Related

• Chain of Responsibility (classic pattern equivalent)
• Decorator (similar wrapping behavior)

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design-patterns modern middleware