Middleware eases connectivity, supports secured connections and data transfer, and manages traffic across distributed systems. Thus, it accelerates the development of distributed applications. In other words, middleware simplifies connectivity between applications, back-end data sources, and application components. Middleware acts as the bridge between applications, tools, and devices, including databases. That’s why we use middleware to manage data and communication.

Middleware connects data, users, and applications. Middleware is nothing but software that exists between operating systems and applications.

Get ahead in your career by learning Node.js through MindMajix Node.js Training. Further, we can call the next middleware function in the queue for Node.JS execution. We can end the request and response cycle in Node.JS execution. Also, we can make changes in response and request objects. To begin with, we can run any codes with middleware functions. With middleware Node.JS, we can do a multitude of things. Note that middleware can process ‘req’ objects before the server sends a response. Generally, the request object is referred to by the variable ‘req', whereas the response object is referred to by the variable ‘res’. It exists in between the request and response cycles of Node.JS execution. Middleware is nothing but a function that has access to response objects, request objects, and the next middleware function. Middleware in Node.JS - Table of Contents This blog will go over the middleware in Node.JS, its importance, types, creating middleware, and many more. There are many types of node.JS middleware, such as application-level, router-level, built-in, error-handling, and third-party middleware. Node.JS middleware plays a prime role in the request-response lifecycle of Node.JS execution. With middleware, you can simplify connectivity between the components. Middleware is the layer that exists between the application components, tools, and devices.

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