Book Image

Advanced Node.js Development

By : Andrew Mead
2 (1)
Book Image

Advanced Node.js Development

2 (1)
By: Andrew Mead

Overview of this book

Advanced Node.js Development is a practical, project-based book that provides you with all you need to progress as a Node.js developer. Node is a ubiquitous technology on the modern web, and an essential part of any web developer’s toolkit. If you're looking to create real-world Node applications, or you want to switch careers or launch a side-project to generate some extra income, then you're in the right place. This book was written around a single goal: turning you into a professional Node developer capable of developing, testing, and deploying real-world production applications. There's no better time to dive in. According to the 2018 Stack Overflow Survey, Node is in the top ten for back-end popularity and back-end salary. This book is built from the ground up around the latest version of Node.js (version 9.x.x). You'll be learning all the cutting-edge features available only in the latest software versions. This book delivers advanced skills that you need to become a professional Node developer. Along this journey you'll create your own API, you'll build a full real-time web app and create projects that apply the latest Async and Await technologies. Andrew Mead maps everything out for you in this book so that you can learn how to build powerful Node.js projects in a comprehensive, easy-to-follow package designed to get you up and running quickly.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Mongoose queries and ID validation


In this section, you're going to learn a few alternative ways that you can use Mongoose to query your data. Now, inside of the server.test file, we already looked at one way, Todo.find. We're going to look at two more and then we're also going to explore how to validate ObjectIDs.

In order to do all of this we are going to make a new file in the playground folder. I'm going to call this one mongoose-queries.js, and the first thing we need to do is load in the mongoose file in the db folder and the todo file in the models folder. I'm going to use ES6 destructuring, like we've used for all files where this happens, then we can require in the local file. Using the relative path, we need to go up a directory out of playgroundserverdb, and finally the filename we're looking for is called mongoose:

const {mongoose} = require('./../server/db/mongoose');

We can do the same thing for todo; we're going to make that constant Todo from the require, return the result,...