TL;DR: HTTP APIs — a new solution in AWS for building low-cost APIs — support JSON Web Token (JWT)-based authorization, and they integrate with external identity providers such as Auth0 for easy, industry-standard authorization practices. This tutorial will walk you through building an HTTP API using Amazon API Gateway and integrating it with Auth0 to restrict write access to authorized users.
Introduction
Let’s start with an obvious statement: building a modern API isn’t exactly a straightforward process. The list of requirements seems to grow: it should be performant, easily scalable, highly available, secure — and that’s before you get to writing your actual business logic!
Thankfully, there’s a constantly growing ecosystem of tools offering solutions for building, securing, and deploying APIs. The AWS API Gateway service provides several solutions for this exact problem, and their most recent offering, HTTP APIs, is a simple, low-cost, low-latency solution for API configuration and deployment.
Now, if you’re building an API, you’ll likely need to restrict endpoint access to at least some of your endpoints eventually. Identity-as-a-Service (IaaS) solutions, like Auth0, can easily handle authentication and authorization for a variety of applications, but how can they be integrated with services like API Gateway? That answer comes in the form of a new HTTP API feature supporting industry-standard authorization: JWT Authorizers.
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