Book Image

Serverless Programming Cookbook

By : Heartin Kanikathottu
Book Image

Serverless Programming Cookbook

By: Heartin Kanikathottu

Overview of this book

Managing physical servers will be a thing of the past once you’re able to harness the power of serverless computing. If you’re already prepped with the basics of serverless computing, Serverless Programming Cookbook will help you take the next step ahead. This recipe-based guide provides solutions to problems you might face while building serverless applications. You'll begin by setting up Amazon Web Services (AWS), the primary cloud provider used for most recipes. The next set of recipes will cover various components to build a Serverless application including REST APIs, database, user management, authentication, web hosting, domain registration, DNS management, CDN, messaging, notifications and monitoring. The book also introduces you to the latest technology trends such as Data Streams, Machine Learning and NLP. You will also see patterns and practices for using various services in a real world application. Finally, to broaden your understanding of Serverless computing, you'll also cover getting started guides for other cloud providers such as Azure, Google Cloud Platform and IBM cloud. By the end of this book, you’ll have acquired the skills you need to build serverless applications efficiently using various cloud offerings.
Table of Contents (12 chapters)

Building and testing your first POST API method

In this recipe, we will create a simple POST API method that has an AWS integration with Lambda. A REST client will send a JSON request body to the API method in the format required by our Lambda, which will be passed through to the Lambda. We will use the same Lambda from the previous recipe.

GET is the default HTTP method for web browser requests; hence, we could invoke GET API methods from the browser in the previous recipes. To invoke other HTTP methods or override various HTTP options, we need to use a REST client. We will use the Postman REST client, which is available as a standalone app, as well as an extension to the Chrome browser.

Getting ready

You need an active...