Authenticating using Google Sign-In

Google Sign-In is one of the most popular integrated services in Firebase. It does not require any extra hustle, has the most functionality, and is popular among many apps. In this recipe, we're going to see how we can integrate Firebase Google Sign-In with our NativeScript project.

Getting ready 

Before we begin, we need to make sure that our application is fully configured with Firebase. For that, please check the Adding the Firebase plugin to our application recipe within this chapter, which will teach you how you can do just that.

You will also need to initialize the Firebase plugin within the application. To do that, open your project, head to your app.js file, and add the...