class GraphQL::StaticValidation::SubscriptionRootExists

Public Instance Methods

validate(context) click to toggle source
# File lib/graphql/static_validation/rules/subscription_root_exists.rb, line 6
def validate(context)
  return if context.warden.root_type_for_operation("subscription")

  visitor = context.visitor

  visitor[GraphQL::Language::Nodes::OperationDefinition].enter << ->(ast_node, prev_ast_node) {
    if ast_node.operation_type == 'subscription'
      context.errors << message('Schema is not configured for subscriptions', ast_node, context: context)
      return GraphQL::Language::Visitor::SKIP
    end
  }
end