Answer
Middleware composition chains multiple middleware functions into a reusable sequence for tasks like validation or authorization.
Quick Answer
Middleware composition is combining multiple middleware functions into a pipeline where each one handles a specific concern. Instead of one giant handler doing everything (auth + logging + validation + business logic), you compose small, reusable middleware functions. Each does one thing well and passes control to the next via next(). Cleaner and more testable.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ