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@ -1,21 +1,31 @@
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"""Loader that fetches a sitemap and loads those URLs."""
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import re
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from typing import Any, List, Optional
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from typing import Any, Callable, List, Optional
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from langchain.document_loaders.web_base import WebBaseLoader
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from langchain.schema import Document
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def _default_parsing_function(content: Any) -> str:
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return str(content.get_text())
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class SitemapLoader(WebBaseLoader):
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"""Loader that fetches a sitemap and loads those URLs."""
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def __init__(self, web_path: str, filter_urls: Optional[List[str]] = None):
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def __init__(
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self,
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web_path: str,
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filter_urls: Optional[List[str]] = None,
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parsing_function: Optional[Callable] = None,
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):
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"""Initialize with webpage path and optional filter URLs.
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Args:
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web_path: url of the sitemap
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filter_urls: list of strings or regexes that will be applied to filter the
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urls that are parsed and loaded
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urls that are parsed and loaded
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parsing_function: Function to parse bs4.Soup output
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"""
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try:
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@ -28,6 +38,7 @@ class SitemapLoader(WebBaseLoader):
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super().__init__(web_path)
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self.filter_urls = filter_urls
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self.parsing_function = parsing_function or _default_parsing_function
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def parse_sitemap(self, soup: Any) -> List[dict]:
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"""Parse sitemap xml and load into a list of dicts."""
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@ -62,7 +73,7 @@ class SitemapLoader(WebBaseLoader):
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return [
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Document(
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page_content=str(results[i].get_text()),
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page_content=self.parsing_function(results[i]),
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metadata={**{"source": els[i]["loc"]}, **els[i]},
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)
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for i in range(len(results))
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