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

Implementation of the app

Let's see whether everything we have implemented so far is running well. We will set up an Android client app that will consume all the endpoints and services we have written.

Setting up AWS Authentication using Cognito pool

We saw how Cognito pool works in previous chapters. We will implement simple sign-up and sign-in screens, and configure them in an app in 10 minutes. Remember, we created and configured Cognito pool in the Configuring Cognito pool section. And we downloaded one file named awsconfiguration.json. It's time to use that file. Locate the file and perform the following steps:

  1. The awsconfiguration.json file contains the configuration of backend resources that Mobile Hub enabled...