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Serverless Programming Cookbook

Serverless Programming Cookbook

By : Kanikathottu
4.6 (15)
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Serverless Programming Cookbook

Serverless Programming Cookbook

4.6 (15)
By: 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)
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Enabling CORS for the API and testing with CodePen

CORS is a mechanism that allows a web application running at one domain (origin) to access selected resources from a different server. Without CORS, the server will respond with a status code of 403 in such cases. We will create an API gateway service similar to what we did in Chapter 2, Building Serverless REST APIs with API Gateway, but will also enable CORS on the API.

We will first get familiar with the CodePen website and will test our API by invoking it using JavaScript SDK code from within the CodePen website. This will also be a revision of the API Gateway concepts that we learned in Chapter 2, Building Serverless REST APIs with API Gateway, but with the additional support for CORS. We will only discuss new concepts here; for theory on already discussed topics, you may refer to the recipes of Chapter 2, Building Serverless...

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