John Chapin - Programming AWS Lambda: Build and Deploy Serverless Applications with Java

by John Chapin and Mike Roberts

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978-1-492-04105-4

[LSI]

AWS Lambdaand both serverless and backend as a service in generalhave had a hugely disruptive effect on the software industry.Theyve greatly improved the productivity of millions of developers by eliminating many of the hassles, costs, and undifferentiated heavy lifting of dealing with servers, from security patching to autoscaler tuning.More importantly, though, serverless has changed the very definition of an application, from a blob of code that we drop onto server farms into a configuration of multi-tenanted cloud services that we orchestrate with code in the sky.Serverless is the next stage of cloud evolutionjust as it once felt impossible to build a company without its own data center, its quickly becoming possible for companies never to own a server.Its a fascinating transformation to watch and be part of!

When I was first coming up with the ideas that eventually became AWS Lambda, I had many discussions with the AWS leadership team about the risks and opportunities.The opportunities were massivethe chance to reimagine how compute and applications were constructed and to change the very nature of software development in the cloud.But the risks were equally great.The innovative spark gap of Lambda was high, and crossing that chasm required a lot of energy: to gain the advantages of serverlesspay per use, per-request scaling, built-in fault tolerance, and so much morewed have to ask developers to give up conventional server- and container-based deployments.Theyd have to approach architecture in a completely different way, one built around doing as little as possible rather than owning as much as possible.Back in 2014 when we unveiled Lambda to the world, this was our biggest fear: would developers make that leap and come on that journey with us?

Fortunately the answer over the last five years has proven to be a resounding yes, and at the heart of that success are books like the one youre reading now.A revolution like serverless requires spreading the message to millions of developersmany of whom will have existing code, in-place processes and tools, and a wealth of language and library knowledge that they need to preserve.Mike and John, the founders of Symphonia and authors of Programming AWS Lambda,bring many years of experience and expertise not just in working with AWS and Lambda but also in working with countless Java developers and mission-critical enterprise Java applications.This insight helps them bridge the new world of serverless and the existing knowledge and practices of enterprise Java developers and their teams.Its this marriage of understandingthe best of old and new togetherthat gives these authors their unique insight and makes this material so essential.

If youre completely new to serverless, this book will help you understand not just what it makes possible but also why and how.If youre getting started or have used services like AWS Lambda in other languages, it will be your trusted companion as you learn the best practices for architecting, developing, deploying, testing, and monitoring serverless Java applications of all typesfrom highly distributed mobile apps to highly scalable data processing pipelines.Regardless of your skill level, this book will help you design and deliver Java applications faster and more reliably.

Welcome to the serverless world, and enjoy your journeyyour expert tour guides await!

Dr. Tim Wagner

Vendia CEO and Cofounder, Original creator of AWS Lambda