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Hands-On Serverless Applications with Kotlin

Hands-On Serverless Applications with Kotlin

By : Trivedi, Kulkarni
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Hands-On Serverless Applications with Kotlin

Hands-On Serverless Applications with Kotlin

By: Trivedi, 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)
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3
Designing a Kotlin Serverless Application

Summary

In this chapter, we covered the nuts and bolts of how AWS Lambda (FaaS) works. We took a look at the Java programming model, which can be extended to other JVM-based languages. We provided a brief overview of all preconfigured AWS events that can be used as trigger points in Lambda.

You saw how Lambda functions can be created, packaged, deployed, and tested, via the console. In this process, we created a simple Lambda function that greets its callers, and then tested it. We then created an API Gateway to integrate with this Lambda function. We deployed this API Gateway and invoked the Lambda function via Postman.

In short, we executed an end-to-end exercise with Lambda functions.

In the next chapter, we will dive into AWS offerings and look at how they can be integrated with Lambda. In the process, we will create a modern serverless application using Kotlin.

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