Book Image

Hands-On Serverless Applications with Kotlin

By : Hardik Trivedi, Ameya Kulkarni
Book Image

Hands-On Serverless Applications with Kotlin

By: Hardik Trivedi, Ameya Kulkarni

Overview of this book

Serverless is a cloud computing execution model where the cloud provider dynamically manages the allocation and provisioning of servers. Many companies now use serverless architectures to cut costs and improve scalability. Thanks to its concise and expressive syntax and a smooth learning curve, Kotlin is a great fit for developing serverless applications. With this book, you’ll be able to put your knowledge to work by implementing serverless technology in your applications and become productive in no time. Complete with detailed explanation of essential concepts and examples, this book will help you understand the serverless architecture fundamentals and how to design serverless architectures for your applications. You’ll also explore how AWS Lambda functions work. The book will guide you in designing, building, securing, and deploying your application to production, along with implementing non-functional requirements such as auditing and logging. Furthermore, you’ll discover how to scale up and orchestrate serverless applications using an open source framework and handle distributed serverless systems in production. By the end of the book, you’ll be able to build scalable and cost-efficient Kotlin applications with a serverless framework.
Table of Contents (11 chapters)
3
Designing a Kotlin Serverless Application

Preparing the serverless environment

It's very important that we set up each AWS service correctly. In this section, we will tell you how you can configure each and every required service on AWS.

Configuring a Cognito pool

Let's start with configuring a Cognito pool. We use the Cognito service to seamlessly authenticate and verify the user:

  1. Got to your AWS console
  2. Select Mobile Hub. Mobile hub lets you create a Cognito pool very easily and quickly (you could use a normal Cognito pool as well). It will display a list of any apps you have already created. Select Add new app/Create.
  3. Create a project is the first option. Enter your project name. It could be ServerlessWithKotlin.
  4. Select the platform on which you want...