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

Sharing an image with text as a blog post with React Native and Expo

In this section, we will learn how to let users upload images as part of a blog post to an S3 Bucket via the built-in Amplify Storage service. We will look at both the Expo and React Native projects, and point out the differences between the two. Open the App.tsx file in your Expo or React Native project and follow these steps:

  1. First, we must import the required libraries; that is, the React and React Native UI components:
    import React, { useEffect, useState, SetStateAction } from "react";
    import {
    } from "react-native";
    import { StatusBar } from 'expo-status-bar';
    import styles from "./AppStyles";
    import Amplify, { Auth, API, graphqlOperation, Storage } from "aws-amplify";
    import * as mutations from "./src/graphql/mutations&quot...