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)
1
Section 1: Getting Ready
4
Section 2: Building a Photo Sharing App
9
Section 3: Production Readiness

Adding an API with GraphQL and DynamoDB

Now, let's add the GraphQL API to the app by running the amplify add api command in a Terminal. We will choose a to-do list template as the example for this chapter:

? amplify add api
? Please select from one of the below mentioned services: GraphQL
? Provide API name: my-api-name
? Choose the default authorization type for the API: API key
? Enter a description for the API key: dev
? After how many days from now the API key should expire (1-365): 365
? Do you want to configure advanced settings for the GraphQL API? No, I am done.
? Do you have an annotated GraphQL schema? No
? Choose a schema template: Single object with fields (e.g., "Todo" with ID, name, description) 
 ? Do you want to edit the schema now? Yes

Before we modify the code, we should call the amplify push command to trigger the code generator. This will generate the GraphQL code first:

? amplify push
? Do you want to generate code for your newly created...