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Web Development with MongoDB and Node

You're reading from   Web Development with MongoDB and Node Build fast web applications for handling any kind of data

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Product type Paperback
Published in Sep 2017
Publisher
ISBN-13 9781788395083
Length 330 pages
Edition 3rd Edition
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Author (1):
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Bruno Joseph D'mello Bruno Joseph D'mello
Author Profile Icon Bruno Joseph D'mello
Bruno Joseph D'mello
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Table of Contents (13) Chapters Close

Preface 1. Welcome to JavaScript in the Full Stack FREE CHAPTER 2. Getting Up and Running 3. Node and MongoDB Basics 4. Introducing Express 5. Templating with Handlebars 6. Controllers and View Models 7. Persisting Data with MongoDB 8. Creating a RESTful API 9. Testing Your Code 10. Deploying with Cloud-Based Services 11. Popular Node.js Web Frameworks 12. Single Page Applications with Popular Frontend Frameworks

Middlewares

One of the most powerful features available with Express is the concept of middleware. The idea behind middleware is that it acts like a stack of filters that every request to your server passes through. Every request passes through each filter and each filter can perform a specific task against the request before it passes through to the next filter.

To understand it better, here is a diagrammatic view of middlewares:

Typically, these filters are used for tasks such as cookie parsing, form-field handling, session handling, authentication, and error handling and logging. The list goes on and on. You can use hundreds of third-party modules as well as simply write your own custom middleware.

Creating custom middleware

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