<ul><li>Middleware acts as a checkpoint in applications, filtering and securing access to important resources before reaching the server logic.</li><li>It can be applied selectively to specific routes or entire routes to ensure requests pass through necessary checks like authentication.</li><li>Moving authentication logic to middleware enhances performance significantly, especially for large-scale applications handling millions of requests daily.</li><li>By centralizing authentication logic, middleware improves code maintainability, reduces human errors, and contributes to a more secure and efficient application architecture.</li></ul>

How Can Middleware Secure Our Code and Company (Express.js)

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