Preface
About This Book
Welcome to Programming AWS Lambda. We’re glad you’re here!
Serverless computing is a revolutionary way of building systems. At its heart, serverless is about performing the minimum technical work necessary to sustainably provide value to our users. A serverless approach does this by making the most of services provided by cloud vendors, like Amazon Web Services (AWS).
In this book, you’ll learn how to architect, build, and operate serverless applications that use AWS Lambda—the original, and widely adopted, serverless compute platform. AWS Lambda is rarely used by itself, however, and so while reading this book, you’ll also learn how to successfully integrate Lambda with other serverless AWS services, like S3, DynamoDB, and more.
Why We Wrote This Book
We have been using Lambda since 2015, ever since Lambda’s support for Java was first announced. Within just a few weeks we saw the amazing ability that Lambda had to let teams build new features far faster than we’d ever seen before. By removing a lot of low-level aspects of developing and running systems, and instead focusing on a clean, event-driven approach, we realized that many of the complexities that got in the way of our teams no longer applied when using Lambda. Lambda also let us amplify our use of the rest of the AWS platform—it had a multiplicative impact on our effectiveness.
We initially had two concerns about Lambda—that it wouldn’t support the programming knowledge and software inventory ...
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