Understanding NodeJs Express Middleware

Understanding NodeJs Express Middleware

Middleware functions can perform the following tasks:

1. Execute any code.

2. Make changes to the request and the response objects.

3. End the request-response cycle.

4. Call the next middleware function in the stack.

An Express application can use the following types of middleware:

# Application-level middleware

#Router-level middleware

#Error-handling middleware

#Built-in middleware

#Third-party middleware