Book Image

Node.js 6.x Blueprints

By : Fernando Monteiro
Book Image

Node.js 6.x Blueprints

By: Fernando Monteiro

Overview of this book

Node.js is the most popular framework to create server-side applications today. Be it web, desktop, or mobile, Node.js comes to your rescue to create stunning real-time applications. Node.js 6.x Blueprints will teach you to build these types of projects in an easy-to-understand manner. The key to any Node.js project is a strong foundation on the concepts that will be a part of every project. The book will first teach you the MVC design pattern while developing a Twitter-like application using Express.js. In the next chapters, you will learn to create a website and applications such as streaming, photography, and a store locator using MongoDB, MySQL, and Firebase. Once you’re warmed up, we’ll move on to more complex projects such as a consumer feedback app, a real-time chat app, and a blog using Node.js with frameworks such as loopback.io and socket.io. Finally, we’ll explore front-end build processes, Docker, and continuous delivery. By the end of book, you will be comfortable working with Node.js applications and will know the best tools and frameworks to build highly scalable desktop and cloud applications.
Table of Contents (16 chapters)
Node.js 6.x Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Checking the Geolocation application


This is the time to test the application. We have already created eight records in our database, already indexed all positions using the ensure.index () MongoDB, and we can already see all the points rendered in the map, as we can see in the following screenshot:

Screenshot from locations.html

In this previous screenshot, you may notice that the points raised in the map are away from each other, which is able to show the difference in the distance of points shown when we change the distance search field.

In this example, we can insert any latitude and longitude in the search field, but we leave this field fixed only to illustrate the geolocation functionality of the application.

When we access the locations route for the first time, we show all records in the database, as we saw in the previous screenshot:

Let's change the distance on the locations.html form to check what happens; go to http://localhost:3000/locations, select 2km in the Distance field, and...