graphql.execute.rb

  def execute
    if !params[:query]
      render_wrong_params_error
    else
      variables       = ensure_hash(params[:variables])
      query           = params[:query]
      operation_name  = params[:operationName]
      context         = { site_id: @site.id }
      context         = context.merge(current_user: User.find(auth_token[:user_id])) if user_id_in_token?
      context         = context.merge( media: params[:media] ) if params.try(:[],:media)
      execute_query(query, variables, context, operation_name)
    end
  end