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The Auth0 Single Page App SDK is a new way to implement authentication into a single page application (SPA) using the Auth0 platform. Auth0 provides a Quick Start guide for using the new SDK with React, but the guide uses the create-react-app (CRA) platform in the guide.

If you're a Gatsby user, you might be wondering how the example CRA code translates to your Gatsby project. I was too! Hopefully this example site and its GitHub repository clears things up.

I'd like to turn this topic into a blog post which explores how to implement the new Auth0 SDK in Gatsby, and why you might want to do so in the first place.