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# frozen_string_literal: true
module ErrorTracking
class CollectErrorService < ::BaseService
include Gitlab::Utils::StrongMemoize
def execute
# Error is a way to group events based on common data like name or cause
# of exception. We need to keep a sane balance here between taking too little
# and too much data into group logic.
error = project.error_tracking_errors.report_error(
name: exception['type'], # Example: ActionView::MissingTemplate
description: exception['value'], # Example: Missing template posts/show in...
actor: actor, # Example: PostsController#show
platform: event['platform'], # Example: ruby
timestamp: timestamp
)
# The payload field contains all the data on error including stacktrace in jsonb.
# Together with occurred_at these are 2 main attributes that we need to save here.
error.events.create!(
environment: event['environment'],
description: exception['value'],
level: event['level'],
occurred_at: timestamp,
payload: event
)
end
private
def event
@event ||= format_event(params[:event])
end
def format_event(event)
# Some SDK send exception payload as Array. For exmple Go lang SDK.
# We need to convert it to hash format we expect.
if event['exception'].is_a?(Array)
exception = event['exception']
event['exception'] = { 'values' => exception }
end
event
end
def exception
strong_memoize(:exception) do
# Find the first exception that has a stacktrace since the first
# exception may not provide adequate context (e.g. in the Go SDK).
entries = event['exception']['values']
entries.find { |x| x.key?('stacktrace') } || entries.first
end
end
def stacktrace_frames
strong_memoize(:stacktrace_frames) do
exception.dig('stacktrace', 'frames')
end
end
def actor
return event['transaction'] if event['transaction']
# Some SDKs do not have a transaction attribute.
# So we build it by combining function name and module name from
# the last item in stacktrace.
return unless stacktrace_frames.present?
last_line = stacktrace_frames.last
"#{last_line['function']}(#{last_line['module']})"
end
def timestamp
return @timestamp if @timestamp
@timestamp = (event['timestamp'] || Time.zone.now)
# Some SDK send timestamp in numeric format like '1630945472.13'.
if @timestamp.to_s =~ /\A\d+(\.\d+)?\z/
@timestamp = Time.zone.at(@timestamp.to_f)
end
@timestamp
end
end
end
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