Laravel

Express

Node.js Express Middleware

Using Express Middleware

Node.js Express middleware processes requests with next() calls.

What is Express Middleware?

Express middleware refers to functions that execute during the lifecycle of a request to the Express server. These functions have access to the request and response objects, and the next middleware function in the application’s request-response cycle.

Middleware can perform a variety of tasks, such as:

  • Executing any code.
  • Making changes to the request and the response objects.
  • Ending the request-response cycle.
  • Calling the next middleware function in the stack.

Using next() in Middleware

The next() function is a crucial part of Express middleware. It is used to pass control to the next middleware function. If a middleware function does not call next(), the request will be left hanging.

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