Book Image

JavaScript Cloud Native Development Cookbook

By : John Gilbert
Book Image

JavaScript Cloud Native Development Cookbook

By: John Gilbert

Overview of this book

Cloud-native development is a modern approach to building and running applications that leverages the merits of the cloud computing model. With cloud-native development, teams can deliver faster and in a more lean and agile manner as compared to traditional approaches. This recipe-based guide provides quick solutions for your cloud-native applications. Beginning with a brief introduction, JavaScript Cloud-Native Development Cookbook guides you in building and deploying serverless, event-driven, cloud-native microservices on AWS with Node.js. You'll then move on to the fundamental patterns of developing autonomous cloud-native services and understand the tools and techniques involved in creating globally scalable, highly available, and resilient cloud-native applications. The book also covers multi-regional deployments and leveraging the edge of the cloud to maximize responsiveness, resilience, and elasticity. In the latter chapters you'll explore techniques for building fully automated, continuous deployment pipelines and gain insights into polyglot cloud-native development on popular cloud platforms such as Azure and Google Cloud Platform (GCP). By the end of the book, you'll be able to apply these skills to build powerful cloud-native solutions.
Table of Contents (13 chapters)

Implementing a custom authorizer

In the Securing an API Gateway with OpenID Connect recipe, we leveraged the Cognito authorizer that is provided by AWS. This is one of the advantages of using Cognito. However, this is not the only option. Sometimes we may want more control over the policy that is returned. In other cases, we may need to use a third-party tool such as Auth0 or Okta. In this recipe, we will show how to support these scenarios by implementing a custom authorizer.

Getting ready

You will need the Cognito user pool created in the Creating a federated identity pool recipe and the sample application created in the Implementing sign up, sign in, and sign out recipe to create the identity token used in this recipe.