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

Signing up for the Expo and React Native apps

To be honest, I am very glad that both Expo and React Native can share the same code with the Amplify UI. Because of this, you don't need to worry about if you decided to go with Expo first and want to change it to pure React Native later, since you can reuse the same code base.

We will follow the Understanding AWS authentication section of this chapter for the React Native and Expo apps. Here, we must remove the old Cognito user pool, which contains your email as the identifier, and add a new Cognito user pool with the username as the identifier, plus the additional settings, to the Cognito console.

Now, we need to go to the app directory, open the App.tsx file, and do the following:

  1. Import the necessary libraries, such as the React and the React Native libraries and the Amplify React Native library:
    import React from 'react';
    import { View, Text } from 'react-native';
    import { withAuthenticator...