Book Image

Learn AWS Serverless Computing

By : Scott Patterson
Book Image

Learn AWS Serverless Computing

By: Scott Patterson

Overview of this book

Serverless computing is a way to run your code without having to provision or manage servers. Amazon Web Services provides serverless services that you can use to build and deploy cloud-native applications. Starting with the basics of AWS Lambda, this book takes you through combining Lambda with other services from AWS, such as Amazon API Gateway, Amazon DynamoDB, and Amazon Step Functions. You’ll learn how to write, run, and test Lambda functions using examples in Node.js, Java, Python, and C# before you move on to developing and deploying serverless APIs efficiently using the Serverless Framework. In the concluding chapters, you’ll discover tips and best practices for leveraging Serverless Framework to increase your development productivity. By the end of this book, you’ll have become well-versed in building, securing, and running serverless applications using Amazon API Gateway and AWS Lambda without having to manage any servers.
Table of Contents (20 chapters)
Free Chapter
1
Section 1: Why We're Here
4
Section 2: Getting Started with AWS Lambda Functions
9
Section 3: Development Patterns
12
Section 4: Architectures and Use Cases

Bringing your own runtime to Lambda

The first topic we'll cover is intended to give you the flexibility to write Lambda functions in a language that you are the most comfortable with. Adopting Lambda doesn't mean you have to learn to code in an entirely new language, but there are some steps we need to take to enable a runtime that doesn't come out of the box.

Throughout this section, we will learn what is involved in using the relatively new custom runtime feature and run through an example.

Runtime API and bootstrapping

The Lambda service now provides a new runtime interface that helps us get more information about invocation events, and also allows us to submit an execution response. This functionality was...