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

Understanding deployment patterns

There are a lot of different ways you can release your code into your environments. They range from deploying all your assets at once to the more risk-averse canary release with traffic shifting. There are a lot of considerations when choosing your deployment strategy.

In this section, we will go over some of the more common options and how they can be implemented in your Serverless Framework workflow.

Deploying all at once

The first and most basic method is to deploy everything at once. This includes the infrastructure (such as Lambda, API Gateway, and DynamoDB), the function code, and any configuration that's required. This is the pattern we have been using throughout all the examples...