Book Image

Learning Node.js Development

By : Andrew Mead
Book Image

Learning Node.js Development

By: Andrew Mead

Overview of this book

Learning Node.js Development is a practical, project-based book that provides you with all you need to get started as a Node.js developer. Node is a ubiquitous technology on the modern web, and an essential part of any web developers' toolkit. If you are 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 has been written around a single goal—turning you into a professional Node developer capable of developing, testing, and deploying real-world production applications. Learning Node.js Development 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 cuts through the mass of information available around Node and delivers the essential skills that you need to become a Node developer. It takes you through creating complete apps and understanding how to build, deploy, and test your own Node apps. It maps out everything in a comprehensive, easy-to-follow package designed to get you up and running quickly.
Table of Contents (13 chapters)

Chaining callbacks together

In this section, we'll take the code that we created in the last section, and break it out into its own file. Similar to what we did with the Geocoding API request where we called geocodeAddress instead of actually having the request call in app.js. That means we'll make a new folder, a new file, and we'll create a function in there that gets exported.

After that we'll go ahead and learn how to chain callbacks together. So when we get that address from the Terminal we can convert that into coordinates. And we can take those coordinates and convert them into temperature information, or whatever weather data we want to pull off of the return result from the Forecast API.

Refactoring our request call in weather.js file