wehub-resource-sync
129 lines
4.3 KiB
Python
129 lines
4.3 KiB
Python
"""
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SearchGraph Module
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"""
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from copy import deepcopy
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from typing import List, Optional, Type
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from pydantic import BaseModel
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from ..nodes import GraphIteratorNode, MergeAnswersNode, SearchInternetNode
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from ..utils.copy import safe_deepcopy
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from .abstract_graph import AbstractGraph
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from .base_graph import BaseGraph
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from .smart_scraper_graph import SmartScraperGraph
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class SearchGraph(AbstractGraph):
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"""
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SearchGraph is a scraping pipeline that searches the internet for answers to a given prompt.
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It only requires a user prompt to search the internet and generate an answer.
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Attributes:
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prompt (str): The user prompt to search the internet.
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llm_model (dict): The configuration for the language model.
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embedder_model (dict): The configuration for the embedder model.
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headless (bool): A flag to run the browser in headless mode.
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verbose (bool): A flag to display the execution information.
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model_token (int): The token limit for the language model.
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considered_urls (List[str]): A list of URLs considered during the search.
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Args:
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prompt (str): The user prompt to search the internet.
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config (dict): Configuration parameters for the graph.
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schema (Optional[BaseModel]): The schema for the graph output.
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Example:
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>>> search_graph = SearchGraph(
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... "What is Chioggia famous for?",
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... {"llm": {"model": "openai/gpt-3.5-turbo"}}
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... )
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>>> result = search_graph.run()
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>>> print(search_graph.get_considered_urls())
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"""
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def __init__(
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self, prompt: str, config: dict, schema: Optional[Type[BaseModel]] = None
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):
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self.max_results = config.get("max_results", 3)
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self.copy_config = safe_deepcopy(config)
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self.copy_schema = deepcopy(schema)
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self.considered_urls = [] # New attribute to store URLs
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super().__init__(prompt, config, schema)
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def _create_graph(self) -> BaseGraph:
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"""
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Creates the graph of nodes representing the workflow for web scraping and searching.
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Returns:
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BaseGraph: A graph instance representing the web scraping and searching workflow.
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"""
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search_internet_node = SearchInternetNode(
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input="user_prompt",
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output=["urls"],
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node_config={
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"llm_model": self.llm_model,
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"max_results": self.max_results,
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"loader_kwargs": self.loader_kwargs,
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"storage_state": self.copy_config.get("storage_state"),
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"search_engine": self.copy_config.get("search_engine"),
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"serper_api_key": self.copy_config.get("serper_api_key"),
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},
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)
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graph_iterator_node = GraphIteratorNode(
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input="user_prompt & urls",
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output=["results"],
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node_config={
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"graph_instance": SmartScraperGraph,
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"scraper_config": self.copy_config,
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},
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schema=self.copy_schema,
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)
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merge_answers_node = MergeAnswersNode(
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input="user_prompt & results",
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output=["answer"],
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node_config={"llm_model": self.llm_model, "schema": self.copy_schema},
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)
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return BaseGraph(
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nodes=[search_internet_node, graph_iterator_node, merge_answers_node],
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edges=[
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(search_internet_node, graph_iterator_node),
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(graph_iterator_node, merge_answers_node),
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],
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entry_point=search_internet_node,
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graph_name=self.__class__.__name__,
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)
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def run(self) -> str:
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"""
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Executes the web scraping and searching process.
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Returns:
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str: The answer to the prompt.
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"""
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inputs = {"user_prompt": self.prompt}
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self.final_state, self.execution_info = self.graph.execute(inputs)
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# Store the URLs after execution
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if "urls" in self.final_state:
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self.considered_urls = self.final_state["urls"]
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return self.final_state.get("answer", "No answer found.")
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def get_considered_urls(self) -> List[str]:
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"""
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Returns the list of URLs considered during the search.
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Returns:
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List[str]: A list of URLs considered during the search.
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"""
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return self.considered_urls
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