Building Serverless Web Applications: Develop scalable web apps using the Serverless Framework on AWS

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Getting Started with AWS

All major public cloud vendors currently provide serverless products. In this book, the focus will be on AWS, which is often considered the best option with regards to features, costs, and reliability. As we need to use a large number of AWS services throughout the book, this chapter introduces them to help you to get familiar with the building blocks of our sample application.

The main topics covered in this chapter are as follows:

Handling user accounts
Using the AWS, CLI, and the SDK services
Deploying your first Lambda function
Other AWS serverless products
The architecture of our sample application
Estimating costs

After this chapter, you will be able to start playing with AWS.

Key benefits

Get an in-depth understanding of the serverless model

Build a complete serverless web application end to end

Learn how to use the Serverless Framework to improve your productivity

Description

This book will equip you with the knowledge needed to build your own serverless apps by showing you how to set up different services while making your application scalable, highly available, and efficient. We begin by giving you an idea of what it means to go serverless, exploring the pros and cons of the serverless model and its use cases. Next, you will be introduced to the AWS services that will be used throughout the book, how to estimate costs, and how to set up and use the Serverless Framework. From here, you will start to build an entire serverless project of an online store, beginning with a React SPA frontend hosted on AWS followed by a serverless backend with API Gateway and Lambda functions. You will also learn to access data from a SimpleDB database, secure the application with authentication and authorization, and implement serverless notifications for browsers using AWS IoT. This book will describe how to monitor the performance, efficiency, and errors of your apps and conclude by teaching you how to test and deploy your applications.

What you will learn

Get a grasp of the pros and cons of going serverless and its use cases

Discover how you can use the building blocks of AWS to your advantage

Set up the environment and create a basic app with the Serverless Framework

Host static files on S3 and CloudFront with HTTPS support

Build a sample application with a frontend using React as an SPA

Develop the Node.js backend to handle requests and connect to a SimpleDB database

Secure your applications with authentication and authorization

Implement the publish-subscribe pattern to handle notifications in a serverless application

Create tests, define the workflow for deployment, and monitor your app

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