Book Image

Rapid Application Development with AWS Amplify

By : Adrian Leung
Book Image

Rapid Application Development with AWS Amplify

By: Adrian Leung

Overview of this book

AWS Amplify is a modern toolkit that includes a command line interface (CLI); libraries for JS, iOS, and Android programming; UI component libraries for frameworks like React, Angular, and Vue.js for web development, and React Native and Flutter for mobile development. You'll begin by learning how to build AWS Amplify solutions with React and React Native with TypeScript from scratch, along with integrating it with existing solutions. This book will show you the fastest way to build a production-ready minimum viable product (MVP) within days instead of years. You'll also discover how to increase development speed without compromising on quality by adopting behavior-driven development (BDD) and Cypress for end-to-end test automation, as well as the Amplify build pipeline (DevOps or CI/CD pipeline) to ensure optimal quality throughout continuous test automation and continuous delivery. As you advance, you'll work with React to determine how to build progressive web apps (PWAs) with Amplify and React Native for cross-platform mobile apps. In addition to this, you'll find out how to set up a custom domain name for your new website and set up the AWS Amplify Admin UI for managing the content of your app effectively. By the end of this AWS book, you'll be able to build a full-stack AWS Amplify solution all by yourself.
Table of Contents (14 chapters)
Section 1: Getting Ready
Section 2: Building a Photo Sharing App
Section 3: Production Readiness

Customizing Amplify UI components for Expo and React Native apps

AWS Amplify for React Native is a little bit less customizable compared to Amplify for ReactJS – perhaps that's because it is still new. We can only customize the sign-up screen, instead of all the screens as we did with the ReactJS app. But we can still configure what is to be used as the username, choosing between username, email, and phone_number. Let's open App.tsx and do the following:

  1. Import the react and react-native libraries:
    import React from 'react';
    import { Text } from 'react-native';
  2. Import the withAuthenticator component from the aws-amplify-react-native library. This is an HOC, which is a function that takes a component and returns a new component. In our case, we will use it to wrap around the App component and return it with the Amplify Authenticator component:
    import { withAuthenticator } from 'aws-amplify-react-native';
    import Amplify from &apos...