Nest.js Essentials: Middleware — Part 5/22
Exploring Middleware in Nest.js: A Practical Approach
Welcome to the fifth installment of our “Nest.js Essentials” series! In this article, we’re focusing on middleware in Nest.js. Middleware is a crucial concept in web development, especially when working with Node.js and Nest.js. This guide is crafted to simplify the understanding and implementation of middleware, making it accessible to everyone, from beginners to experienced developers.
Understanding Middleware in Nest.js
Middleware in Nest.js are functions that run before your route handlers. They are perfect for tasks that should happen just before a request is processed, like logging, authentication, or any other preliminary checks.
Think of middleware as a gatekeeper, checking or transforming the request before it reaches the route handler. They can modify the request, the response, or simply pass the control to the next function in line.
Implementing Custom Middleware
Creating custom middleware in Nest.js allows you to perform specific actions on your incoming requests. Here’s how you can create a simple logging middleware:
- Creating Middleware: First, create a new file for your…