Perhaps https://developer.github.com/v4/guides/forming-calls/#communicating-with-graphql https://developer.github.com/v4/guides/forming-calls/#commun... is rele

Perhaps https://developer.github.com/v4/guides/forming-calls/#communicating-with-graphql https://developer.github.com/v4/guides/forming-calls/#commun... is relevant: > In REST, HTTP verbs determine the operation performed. In GraphQL, you'll provide a JSON-encoded body whether you're performing a query or a mutation, so the HTTP verb is POST. The exception is an introspection query, which is a simple GET to the endpoint.