Class: Heatwave::Crawler::Tiers::Playwright

Inherits:
Object
  • Object
show all
Defined in:
app/services/heatwave/crawler/tiers/playwright.rb,
app/services/heatwave/crawler/tiers/playwright/limiter.rb

Overview

Tier: full page load in headless Chromium via PlaywrightRuntime
(the always-on Kamal accessory in staging/production, local driver in
development). Captures the rendered DOM plus technical artifacts —
console errors, failed requests, redirect chain, response headers,
optional screenshot — which powers :inspect mode and the free middle
rung of :auto escalation (per-request cost is zero; capacity is the
constraint, guarded by Limiter).

Defined Under Namespace

Classes: Limiter

Constant Summary collapse 

30_000
SETTLE_TIMEOUT_MS = 
5_000
ARTIFACT_LIMIT = 
50

Instance Method Summary collapse

Constructor Details

#initialize(policy) ⇒ Playwright

Returns a new instance of Playwright.

Parameters:



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# File 'app/services/heatwave/crawler/tiers/playwright.rb', line 18

def initialize(policy)
  @policy = policy
end

Instance Method Details

#applies_to?(_url) ⇒ Boolean

Browsers must never launch in the test env — tier tests stub the
whole tier (same spirit as Retailer::DailyCostGuard.disabled?).

Returns:

  • (Boolean) 


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# File 'app/services/heatwave/crawler/tiers/playwright.rb', line 24

def applies_to?(_url)
  !Rails.env.test?
end

#attempt(url) ⇒ Heatwave::Crawler::FetchOutcome

Parameters:

  • url (String)

Returns:



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# File 'app/services/heatwave/crawler/tiers/playwright.rb', line 30

def attempt(url)
  rendered = Limiter.with_slot { render(url) }
  rendered || Tiers.error_outcome(tier: :playwright, url: url,
                                  error: 'render capacity unavailable')
rescue StandardError => e
  Tiers.error_outcome(tier: :playwright, url: url, error: e, exception: e)
end