Book Image

Supercharging Node.js Applications with Sequelize

By : Daniel Durante
4 (1)
Book Image

Supercharging Node.js Applications with Sequelize

4 (1)
By: Daniel Durante

Overview of this book

Continuous changes in business requirements can make it difficult for programmers to organize business logic into database models, which turns out to be an expensive operation as changes to the database may result in errors and incongruity within applications. Supercharging Node.js Applications with Sequelize helps you get to grips with Sequelize, a reliable ORM that enables you to alleviate these issues in your database and applications. With Sequelize, you'll no longer need to store information in flat files or memory. This book takes a hands-on approach to implementation and associated methodologies for your database that will have you up and running in no time. You'll learn how to configure Sequelize for your Node.js application properly, develop a better sense of understanding of how this ORM works, and find out how to manage your database from Node.js using Sequelize. Finally, you'll be able to use Sequelize as the database driver for building your application from scratch. By the end of this Node.js book, you'll be able to configure, build, store, retrieve, validate, and associate your data from a database to a Node.js application.
Table of Contents (16 chapters)
1
Part 1 – Installation, Configuration, and the Basics
4
Part 2 – Validating, Customizing, and Associating Your Data
10
Part 3 – Advanced Queries, Using Adapters, and Logging Queries

Using and Creating Adapters

After developing for several years, you may have a set of common utility functions, a collection of other frameworks, and a library of your own scripts. Maintaining all of these moving parts may become too entropic for an enterprise project or a fleet of microservices. We can restructure our common code into a more generic interface, or pattern, and reclassify those scripts as an “adapter” (also known as a “plugin”).

Using adapters can save us development time, prevent us from repeating ourselves, and help centralize collaboration by maintaining its code base. A few examples of an adapter would be transforming text into a specific character ruleset, scaffolding a sidecar project such as an administrative dashboard, or providing a caching layer.

Sequelize offers a way to extend its behavior by allowing the integration of adapters and plugins through a mixture of object prototyping and its lifecycle events. Once we become...