Middleware simplifies coding. Handle authorization, parse request schemas, validate rate limits, and catch asynchronous exceptions in central handlers.
MERN Stack Development
Express.js Middleware: Handling Security, Auth, and Errors
By Vivek Kumar
Mar 05, 2026
5 min read
Author Profile
Vivek Kumar
Founder, Aagaj Infotech
Vivek Kumar is the owner of Aagaj Infotech. He manages technical architecture and product roadmaps for enterprise CRM, POS, and AI solutions.
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