Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning Node.js Development

You're reading from   Learning Node.js Development Learn the fundamentals of Node.js, and deploy and test Node.js applications on the web

Arrow left icon
Product type Paperback
Published in Jan 2018
Publisher Packt
ISBN-13 9781788395540
Length 658 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Andrew Mead Andrew Mead
Author Profile Icon Andrew Mead
Andrew Mead
Arrow right icon
View More author details
Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Set Up 2. Node Fundamentals – Part 1 FREE CHAPTER 3. Node Fundamentals – Part 2 4. Node Fundamentals – Part 3 5. Basics of Asynchronous Programming in Node.js 6. Callbacks in Asynchronous Programming 7. Promises in Asynchronous Programming 8. Web Servers in Node 9. Deploying Applications to Web 10. Testing the Node Applications – Part 1 11. Testing the Node Applications – Part 2 12. Another Book You May Enjoy

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

...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image