Module: Datadog::AppSec::Contrib::GraphQL::Gateway::Watcher

Defined in:
lib/datadog/appsec/contrib/graphql/gateway/watcher.rb

Overview

Watcher for Rack gateway events

Class Method Summary collapse

Class Method Details

.watch ⇒ Object 



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# File 'lib/datadog/appsec/contrib/graphql/gateway/watcher.rb', line 16

def watch
  gateway = Instrumentation.gateway

  watch_multiplex(gateway)
end

.watch_multiplex(gateway = Instrumentation.gateway) ⇒ Object

This time we don’t throw but use next



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# File 'lib/datadog/appsec/contrib/graphql/gateway/watcher.rb', line 23

def watch_multiplex(gateway = Instrumentation.gateway)
  gateway.watch('graphql.multiplex', :appsec) do |stack, gateway_multiplex|
    block = false
    event = nil

    scope = AppSec::Scope.active_scope

    if scope
      AppSec::Reactive::Operation.new('graphql.multiplex') do |op|
        GraphQL::Reactive::Multiplex.subscribe(op, scope.processor_context) do |result|
          event = {
            waf_result: result,
            trace: scope.trace,
            span: scope.service_entry_span,
            multiplex: gateway_multiplex,
            actions: result.actions
          }

          Datadog::AppSec::Event.tag_and_keep!(scope, result)
          scope.processor_context.events << event
        end

        block = GraphQL::Reactive::Multiplex.publish(op, gateway_multiplex)
      end
    end

    next [nil, [[:block, event]]] if block

    ret, res = stack.call(gateway_multiplex.arguments)

    if event
      res ||= []
      res << [:monitor, event]
    end

    [ret, res]
  end
end