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

Building a Lambda-backed API

Alright, we're getting to the fun stuff! We're about to piece together what we've learned in this chapter to create an API of our own. We'll use the Lambda function from the previous chapter as an integration point for a new RESTful API.

Then, we'll fire some test messages and see what we get!

Hello world using the console

For this section, we'll create a new API and smoke-test it using GUI-based tools. This is the best way to introduce the required steps, and it's good to be able to see the feedback straightaway on the console.

Let's create a new RESTful API:

  1. Create a new API with a regional endpoint type and give it a useful name. The API will be created...