This AWS announcement is quite exciting. For those wondering what else is available, I can share some recent research into available graphQL backend systems (but I have not used them past demo yet).

These 3 hosted solutions all have a similar feature set. That includes support for enum types, uniqueness, required, and relations

  * GraphCMS
  * Scaphold
  * Graphcool

GraphCMS is probably the most user friendly around schema creation, but that may not matter to you if you are an app developer. If you just want to declare a GraphQL schema there is Graph Front.

There are also open source GraphQL backends

  * https://github.com/jscomplete/graphfront (Postgres)
  * https://github.com/postgraphql/postgraphql (Postgres)
  * http://join-monster.readthedocs.io/en/latest/
  * https://rest-layer.io/ (MongoDB, Sqlite3, Google DataStore)

You can also now run Graphcool on your own infrastructure.

As a disclaimer, GraphQL was not designed to not be mapped to a data store like this. However, these technologies are at least a great way to prototype a backend.