Using GraphQL with Neo4j Aura is very similar to using it with a local DB. However, there are a few Aura-specific twists and turns to navigate, depending on how you intend to deploy your application.

If you haven't already gotten familiar with GraphQL and Neo4j, follow the Getting Started guide for Neo4j GraphQL Library to get familiar with the concepts using a local installation of Neo4j.
Once you are comfortable with the components in a local DB, you can follow this blog post, which describes how to deploy a full GRANDStack application against Neo4j Aura in detail.

Also refer to the Using AuraDB section in the Getting Started guide for Neo4j GraphQL Library 

In short:

• Simply use a driver instance which points to the Neo4j Aura instance.
• The GraphQL Database Plugin is not currently available in Neo4j Aura. Hence, you must rely on an external server such as Apollo to serve your GraphQL endpoint.