GraphQL, Rails, React: https://medium.com/@ryancollinsio/building-a-full-on-graphql-app-b261f6cfea93#.qtjma57sx

api_controller.rb

class ApiController < ApplicationController
  def create
    query_string = params[:query]
    query_variables = ensure_hash(params[:variables])
    result = MeetupEventPlannerSchema.execute(
      query_string,
      variables: query_variables,
      context: { }
    )
    render json: result
  end
end