RestQL - PostController with GraphQL

post_controller.ex

defmodule Restql.Web.PostController do
  use Restql.Web, :controller

  alias Restql.Blog
  alias Restql.Blog.Post

  def index(conn, _params) do
    graphql conn, """
      {
        posts {
          title
          body
          author {
            name
          }
        }
      }
    """
  end
  
  defp graphql(conn, document, variables \\ %{}, schema \\ Restql.Blog.Schema) do
    with {:ok, data} <- Absinthe.run(document, schema, variables: variables) do
      json conn, data
    end
  end
end