crawlee-python/docs/guides/code_examples/session_management/sm_playwright.py

43 lines
1.5 KiB
Python

import asyncio
from crawlee.crawlers import PlaywrightCrawler, PlaywrightCrawlingContext
from crawlee.proxy_configuration import ProxyConfiguration
from crawlee.sessions import SessionPool
async def main() -> None:
# To use the proxy IP session rotation logic, you must turn the proxy usage on.
proxy_configuration = ProxyConfiguration(
# options
)
# Initialize crawler with a custom SessionPool configuration
# to manage concurrent sessions and proxy rotation
crawler = PlaywrightCrawler(
proxy_configuration=proxy_configuration,
# Activates the Session pool (default is true).
use_session_pool=True,
# Overrides default Session pool configuration.
session_pool=SessionPool(max_pool_size=100),
)
# Define the default request handler that manages session states
# based on the response content and potential blocking
@crawler.router.default_handler
async def default_handler(context: PlaywrightCrawlingContext) -> None:
title = await context.page.title()
if context.session:
if title == 'Blocked':
context.session.retire()
elif title == 'Not sure if blocked, might also be a connection error':
context.session.mark_bad()
else:
context.session.mark_good() # BasicCrawler handles this automatically.
await crawler.run(['https://crawlee.dev/'])
if __name__ == '__main__':
asyncio.run(main())