CurlImpersonateHttpClient

HTTP client based on the curl-cffi library.

This client uses the curl-cffi library to perform HTTP requests in crawlers (BasicCrawler subclasses) and to manage sessions, proxies, and error handling.

See the HttpClient class for more common information about HTTP clients.

Usage

from crawlee.crawlers import HttpCrawler  # or any other HTTP client-based crawler
from crawlee.http_clients import CurlImpersonateHttpClient

http_client = CurlImpersonateHttpClient()
crawler = HttpCrawler(http_client=http_client)

Hierarchy

• HttpClient
  • CurlImpersonateHttpClient

Index

Methods

• __aenter__
• __aexit__
• __init__
• cleanup
• crawl
• send_request
• stream

Properties

• active

Methods

__aenter__

• async __aenter__(): HttpClient

• Inherited from HttpClient.__aenter__

  Initialize the client when entering the context manager.

  ---

  Returns HttpClient

__aexit__

• async __aexit__(exc_type, exc_value, traceback): None

• Inherited from HttpClient.__aexit__

  Deinitialize the client and clean up resources when exiting the context manager.

  ---

  Parameters

  • exc_type: BaseException | None

  • exc_value: BaseException | None

  • traceback: TracebackType | None

  Returns None

__init__

• __init__(*, persist_cookies_per_session, async_session_kwargs): None

• Overrides HttpClient.__init__

  Initialize a new instance.

  ---

  Parameters

  • optionalkeyword-onlypersist_cookies_per_session: bool = True

    Whether to persist cookies per HTTP session.

  • async_session_kwargs: Any

    Additional keyword arguments for curl_cffi.requests.AsyncSession.

  Returns None

cleanup

• async cleanup(): None

• Overrides HttpClient.cleanup

  Clean up resources used by the client.

  This method is called when the client is no longer needed and should be overridden in subclasses to perform any necessary cleanup such as closing connections, releasing file handles, or other resource deallocation.

  ---

  Returns None

crawl

• async crawl(request, *, session, proxy_info, statistics): HttpCrawlingResult

• Overrides HttpClient.crawl

  Perform the crawling for a given request.

  This method is called from crawler.run().

  ---

  Parameters

  • request: Request

    The request to be crawled.

  • optionalkeyword-onlysession: Session | None = None

    The session associated with the request.

  • optionalkeyword-onlyproxy_info: ProxyInfo | None = None

    The information about the proxy to be used.

  • optionalkeyword-onlystatistics: Statistics | None = None

    The statistics object to register status codes.

  Returns HttpCrawlingResult

send_request

• async send_request(url, *, method, headers, payload, session, proxy_info): HttpResponse

• Overrides HttpClient.send_request

  Send an HTTP request via the client.

  This method is called from context.send_request() helper.

  ---

  Parameters

  • url: str

    The URL to send the request to.

  • optionalkeyword-onlymethod: HttpMethod = 'GET'

    The HTTP method to use.

  • optionalkeyword-onlyheaders: (HttpHeaders | dict[str, str]) | None = None

    The headers to include in the request.

  • optionalkeyword-onlypayload: HttpPayload | None = None

    The data to be sent as the request body.

  • optionalkeyword-onlysession: Session | None = None

    The session associated with the request.

  • optionalkeyword-onlyproxy_info: ProxyInfo | None = None

    The information about the proxy to be used.

  Returns HttpResponse

stream

• stream(url, *, method, headers, payload, session, proxy_info, timeout): AbstractAsyncContextManager[HttpResponse]

• Overrides HttpClient.stream

  Stream an HTTP request via the client.

  This method should be used for downloading potentially large data where you need to process the response body in chunks rather than loading it entirely into memory.

  ---

  Parameters

  • url: str

    The URL to send the request to.

  • optionalkeyword-onlymethod: HttpMethod = 'GET'

    The HTTP method to use.

  • optionalkeyword-onlyheaders: (HttpHeaders | dict[str, str]) | None = None

    The headers to include in the request.

  • optionalkeyword-onlypayload: HttpPayload | None = None

    The data to be sent as the request body.

  • optionalkeyword-onlysession: Session | None = None

    The session associated with the request.

  • optionalkeyword-onlyproxy_info: ProxyInfo | None = None

    The information about the proxy to be used.

  • optionalkeyword-onlytimeout: timedelta | None = None

    The maximum time to wait for establishing the connection.

  Returns AbstractAsyncContextManager[HttpResponse]

Properties

active

active: bool

Inherited from HttpClient.active

Indicate whether the context is active.