Book Image

Serverless Programming Cookbook

By : Heartin Kanikathottu
Book Image

Serverless Programming Cookbook

By: Heartin Kanikathottu

Overview of this book

Managing physical servers will be a thing of the past once you’re able to harness the power of serverless computing. If you’re already prepped with the basics of serverless computing, Serverless Programming Cookbook will help you take the next step ahead. This recipe-based guide provides solutions to problems you might face while building serverless applications. You'll begin by setting up Amazon Web Services (AWS), the primary cloud provider used for most recipes. The next set of recipes will cover various components to build a Serverless application including REST APIs, database, user management, authentication, web hosting, domain registration, DNS management, CDN, messaging, notifications and monitoring. The book also introduces you to the latest technology trends such as Data Streams, Machine Learning and NLP. You will also see patterns and practices for using various services in a real world application. Finally, to broaden your understanding of Serverless computing, you'll also cover getting started guides for other cloud providers such as Azure, Google Cloud Platform and IBM cloud. By the end of this book, you’ll have acquired the skills you need to build serverless applications efficiently using various cloud offerings.
Table of Contents (12 chapters)

Implementing and testing Cognito operations with the JavaScript SDK

We saw Cognito operations with AWS CLI commands in Chapter 4, Application Security with Amazon Cognito. With web applications, Cognito is generally used with the JavaScript SDK from the frontend. Hence, we will see various uses of Cognito using the JavaScript SDK and then test it using CodePen. We may use CodePen or any other tool, or use it within our application (for example, an Angular app) and then test it.

Getting ready

The prerequisites for this recipe are as follows:

  1. A working AWS account
  2. The Node.js and npm installed on your machine
  3. Download the amazon-cognito-identity.min.js file
  4. Create an S3 bucket and upload the amazon-cognito-identity.min.js...