Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Hands-On Serverless Applications with Kotlin
Hands-On Serverless Applications with Kotlin

Hands-On Serverless Applications with Kotlin: Develop scalable and cost-effective web applications using AWS Lambda and Kotlin

Arrow left icon
Profile Icon Trivedi Profile Icon Kulkarni
Arrow right icon
€18.99 per month
Paperback Sep 2018 386 pages 1st Edition
eBook
€20.98 €29.99
Paperback
€36.99
Subscription
Free Trial
Renews at €18.99p/m
Arrow left icon
Profile Icon Trivedi Profile Icon Kulkarni
Arrow right icon
€18.99 per month
Paperback Sep 2018 386 pages 1st Edition
eBook
€20.98 €29.99
Paperback
€36.99
Subscription
Free Trial
Renews at €18.99p/m
eBook
€20.98 €29.99
Paperback
€36.99
Subscription
Free Trial
Renews at €18.99p/m

What do you get with a Packt Subscription?

Free for first 7 days. $19.99 p/m after that. Cancel any time!
Product feature icon Unlimited ad-free access to the largest independent learning library in tech. Access this title and thousands more!
Product feature icon 50+ new titles added per month, including many first-to-market concepts and exclusive early access to books as they are being written.
Product feature icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Product feature icon Thousands of reference materials covering every tech concept you need to stay up to date.
Subscribe now
View plans & pricing
Table of content icon View table of contents Preview book icon Preview Book

Hands-On Serverless Applications with Kotlin

AWS Serverless Offerings

In Chapter 1, Basics of Serverless, we entered the serverless mindset, covering the definition and evolution of serverless computing. We also listed the various serverless providers and their offerings. AWS, with its early adoption of FaaS and BaaS services and their deep integration with each other, is a good choice for developing serverless applications.

In this chapter, we will take a detailed look at the AWS serverless/FaaS offering, Lambda, and will explore its various aspects, as follows:

  • Lambda execution environments
  • Service limits
  • Invocation types and event sources
  • Supported Runtime environments
  • Error handling and scaling
  • Configuration
  • Creating a deployment package of Lambda functions via the web console
  • Testing Lambda functions
  • Exposing a function as an API endpoint using the Amazon API Gateway
  • Basic monitoring of Lambda functions
  • Versioning...

AWS Lambda overview

Lambda is the FaaS offering from Amazon Web Services. It provides a platform to package functions as code and run them in an ephemeral environment. Let's explore this in a little more detail in the following sections.

Execution environment

AWS Lambda promises the execution of your code without a need to manage the underlying infrastructure. That doesn't mean that the underlying infrastructure and servers don't exist. They need to exist to provide an execution environment to the Lambda function. AWS manages them for you and abstracts away the nuts and bolts.

AWS maintains a fleet of machines to run the functions via various orchestration mechanisms. The underlying hardware is as follows:

    ...

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.

...
Left arrow icon Right arrow icon

Key benefits

  • Design enterprise-ready serverless applications that effortlessly meet your customers’ requirements
  • Deploy, manage, monitor, and orchestrate serverless applications using AWS
  • Use Cloud9 to provision a secured development environment in the cloud

Description

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.

Who is this book for?

Hands-On Serverless Applications with Kotlin is for you if you are a Kotlin developer who wants to learn about serverless architectures. Some knowledge of Kotlin programming and AWS is assumed.

What you will learn

  • Design a serverless architecture
  • Use AWS Lambda to contain your serverless API
  • Explore various ways to secure your Kotlin AWS serverless application
  • Understand how a serverless API enables you to use huge infrastructure and cut costs
  • Discover how to handle distributed systems in Kotlin
  • Design the data ?ow between cloud services and custom business logic
  • Apply design patterns in serverless applications

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Sep 29, 2018
Length: 386 pages
Edition : 1st
Language : English
ISBN-13 : 9781788993708
Vendor :
Amazon
Languages :
Concepts :
Tools :

What do you get with a Packt Subscription?

Free for first 7 days. $19.99 p/m after that. Cancel any time!
Product feature icon Unlimited ad-free access to the largest independent learning library in tech. Access this title and thousands more!
Product feature icon 50+ new titles added per month, including many first-to-market concepts and exclusive early access to books as they are being written.
Product feature icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Product feature icon Thousands of reference materials covering every tech concept you need to stay up to date.
Subscribe now
View plans & pricing

Product Details

Publication date : Sep 29, 2018
Length: 386 pages
Edition : 1st
Language : English
ISBN-13 : 9781788993708
Vendor :
Amazon
Languages :
Concepts :
Tools :

Packt Subscriptions

See our plans and pricing
Modal Close icon
€18.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
€189.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts
€264.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just €5 each
Feature tick icon Exclusive print discounts

Frequently bought together


Stars icon
Total 110.97
Hands-On Serverless Applications with Kotlin
€36.99
Learning Concurrency in Kotlin
€36.99
Hands-On Design Patterns with Kotlin
€36.99
Total 110.97 Stars icon
Banner background image

Table of Contents

10 Chapters
Basics of Serverless Chevron down icon Chevron up icon
AWS Serverless Offerings Chevron down icon Chevron up icon
Designing a Kotlin Serverless Application Chevron down icon Chevron up icon
Developing Your Serverless Application Chevron down icon Chevron up icon
Improving Your App with Firebase Service Chevron down icon Chevron up icon
Analyzing Your Application Chevron down icon Chevron up icon
Secure Your Application Chevron down icon Chevron up icon
Scale Your Application Chevron down icon Chevron up icon
Advanced AWS Services Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is included in a Packt subscription? Chevron down icon Chevron up icon

A subscription provides you with full access to view all Packt and licnesed content online, this includes exclusive access to Early Access titles. Depending on the tier chosen you can also earn credits and discounts to use for owning content

How can I cancel my subscription? Chevron down icon Chevron up icon

To cancel your subscription with us simply go to the account page - found in the top right of the page or at https://subscription.packtpub.com/my-account/subscription - From here you will see the ‘cancel subscription’ button in the grey box with your subscription information in.

What are credits? Chevron down icon Chevron up icon

Credits can be earned from reading 40 section of any title within the payment cycle - a month starting from the day of subscription payment. You also earn a Credit every month if you subscribe to our annual or 18 month plans. Credits can be used to buy books DRM free, the same way that you would pay for a book. Your credits can be found in the subscription homepage - subscription.packtpub.com - clicking on ‘the my’ library dropdown and selecting ‘credits’.

What happens if an Early Access Course is cancelled? Chevron down icon Chevron up icon

Projects are rarely cancelled, but sometimes it's unavoidable. If an Early Access course is cancelled or excessively delayed, you can exchange your purchase for another course. For further details, please contact us here.

Where can I send feedback about an Early Access title? Chevron down icon Chevron up icon

If you have any feedback about the product you're reading, or Early Access in general, then please fill out a contact form here and we'll make sure the feedback gets to the right team. 

Can I download the code files for Early Access titles? Chevron down icon Chevron up icon

We try to ensure that all books in Early Access have code available to use, download, and fork on GitHub. This helps us be more agile in the development of the book, and helps keep the often changing code base of new versions and new technologies as up to date as possible. Unfortunately, however, there will be rare cases when it is not possible for us to have downloadable code samples available until publication.

When we publish the book, the code files will also be available to download from the Packt website.

How accurate is the publication date? Chevron down icon Chevron up icon

The publication date is as accurate as we can be at any point in the project. Unfortunately, delays can happen. Often those delays are out of our control, such as changes to the technology code base or delays in the tech release. We do our best to give you an accurate estimate of the publication date at any given time, and as more chapters are delivered, the more accurate the delivery date will become.

How will I know when new chapters are ready? Chevron down icon Chevron up icon

We'll let you know every time there has been an update to a course that you've bought in Early Access. You'll get an email to let you know there has been a new chapter, or a change to a previous chapter. The new chapters are automatically added to your account, so you can also check back there any time you're ready and download or read them online.

I am a Packt subscriber, do I get Early Access? Chevron down icon Chevron up icon

Yes, all Early Access content is fully available through your subscription. You will need to have a paid for or active trial subscription in order to access all titles.

How is Early Access delivered? Chevron down icon Chevron up icon

Early Access is currently only available as a PDF or through our online reader. As we make changes or add new chapters, the files in your Packt account will be updated so you can download them again or view them online immediately.

How do I buy Early Access content? Chevron down icon Chevron up icon

Early Access is a way of us getting our content to you quicker, but the method of buying the Early Access course is still the same. Just find the course you want to buy, go through the check-out steps, and you’ll get a confirmation email from us with information and a link to the relevant Early Access courses.

What is Early Access? Chevron down icon Chevron up icon

Keeping up to date with the latest technology is difficult; new versions, new frameworks, new techniques. This feature gives you a head-start to our content, as it's being created. With Early Access you'll receive each chapter as it's written, and get regular updates throughout the product's development, as well as the final course as soon as it's ready.We created Early Access as a means of giving you the information you need, as soon as it's available. As we go through the process of developing a course, 99% of it can be ready but we can't publish until that last 1% falls in to place. Early Access helps to unlock the potential of our content early, to help you start your learning when you need it most. You not only get access to every chapter as it's delivered, edited, and updated, but you'll also get the finalized, DRM-free product to download in any format you want when it's published. As a member of Packt, you'll also be eligible for our exclusive offers, including a free course every day, and discounts on new and popular titles.