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)

User sign-up flow with Cognito

In the previous recipes, we created our users as admins. However, many real-world applications, including most web applications, allow users to sign-up by themselves. During the sign-up, a user might have to verify their email or phone number. An admin might also confirm a user sign-up.

In this recipe, we will demonstrate the user sign-up flow with self-confirmation, as well as with admin confirmation, using CLI commands. You can follow the same steps while working with any SDK of your choice. You can refer to the documentation of the particular SDK for the exact usage.

Getting ready

The following are the prerequisites for completing this recipe:

  • Ensure that you have created a Cognito user...