Currently, the GraphQL.execute(request) method blocks until the result is ready, unlike graphql-js, which lets you handle the result in a callback.

Here, we propose an asynchronous rendition of graphql-java, which will allow you to not only execute a GraphQL request in a non-blocking manner, but also permit the data fetcher to wrap it's results in a CompletableFuture.

Since our implementation relies on a Java 8 feature, it is being published as a separate project called graphql-java-async, so as to not impinge on graphql-java's Java 6 compatibility requirements.

A non-blocking version of the famous "hello world" can be found in the README file. A more involved scenario involving publishing and subscribing to news articles can be seen in this groovy test case.

Is this something that could go as a "related project" under graphql-java?

-Karthick Sankarachary