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Contents
# frozen_string_literal: true
require_relative '../../../metadata/ext'
require_relative '../event'
require_relative '../ext'
require_relative '../../analytics'
module Datadog
module Tracing
module Contrib
module ActionCable
module Events
# Defines instrumentation for 'broadcast.action_cable' event.
#
# A single 'broadcast' event will trigger as many 'transmit' events
# as there are clients subscribed to a channel.
module Broadcast
include ActionCable::Event
EVENT_NAME = 'broadcast.action_cable'
module_function
def event_name
self::EVENT_NAME
end
def span_name
Ext::SPAN_BROADCAST
end
def span_type
# Starts a broadcast of messages over WebSockets
Tracing::Metadata::Ext::AppTypes::TYPE_WEB
end
def on_start(span, _event, _id, payload)
channel = payload[:broadcasting] # Channel has high cardinality
span.service = configuration[:service_name] if configuration[:service_name]
span.type = span_type
# Set analytics sample rate
if Contrib::Analytics.enabled?(configuration[:analytics_enabled])
Contrib::Analytics.set_sample_rate(span, configuration[:analytics_sample_rate])
end
span.set_tag(Ext::TAG_CHANNEL, channel)
span.set_tag(Ext::TAG_BROADCAST_CODER, payload[:coder])
span.set_tag(Tracing::Metadata::Ext::TAG_COMPONENT, Ext::TAG_COMPONENT)
span.set_tag(Tracing::Metadata::Ext::TAG_OPERATION, Ext::TAG_OPERATION_BROADCAST)
end
end
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems