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

Finding a blog post with Query with ReactJS

In this section, we will be finding blog posts that the user created with Query. Query helps us look up specific records in the database with GraphQL. Let's get started:

  1. Let's open the schema.graphql file again and add the following code to it. We will add the @key directive field, called title, as the primary key and index of the DynamoDB table, called Post. This means that the user can find the post that they want by using a case-sensitive keyword from the title:
    type Post @model @key(fields: ["title"]) {
      id: ID!
      title: String!
      content: String!

    Call the amplify push command in your Terminal to update the GraphQL backend on the cloud. Once it's updated, open the App.jsx file.

  2. Add the following findPosts method below the deletePost method and above the return section of the code block. This method will list all the posts with a title that contains the keyword that was...