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

Integrating third-party logging applications such as Pino or Bunyan

If our application already utilizes a third-party application for logging, Sequelize can offer support for integrating with such systems. This section references two logging applications, Pino and Bunyan, but any logging library or framework should also be compatible with Sequelize.

Integrating with Pino

Pino is a low overhead Node.js logger that also offers redaction, transport, and asynchronous support. Presuming our project has Pino installed within our node_modules folder, we can simply integrate it with our Sequelize instance as follows:

const logger = require('pino')();
const sequelize = new Sequelize('sqlite::memory:', {
    logging: (msg) => logger.debug(msg)
});

Now, when we call sequelize.log manually or execute queries, the logs will be sent to the Pino logging library. The output would look similar to this:

{"level":30,"time"...