Source code for langchain.utilities.bing_search
"""Util that calls Bing Search.
In order to set this up, follow instructions at:
https://levelup.gitconnected.com/api-tutorial-how-to-use-bing-web-search-api-in-python-4165d5592a7e
"""
from typing import Dict, List
import requests
from langchain.pydantic_v1 import BaseModel, Extra, root_validator
from langchain.utils import get_from_dict_or_env
[docs]class BingSearchAPIWrapper(BaseModel):
    """Wrapper for Bing Search API.
    In order to set this up, follow instructions at:
    https://levelup.gitconnected.com/api-tutorial-how-to-use-bing-web-search-api-in-python-4165d5592a7e
    """
    bing_subscription_key: str
    bing_search_url: str
    k: int = 10
    class Config:
        """Configuration for this pydantic object."""
        extra = Extra.forbid
    def _bing_search_results(self, search_term: str, count: int) -> List[dict]:
        headers = {"Ocp-Apim-Subscription-Key": self.bing_subscription_key}
        params = {
            "q": search_term,
            "count": count,
            "textDecorations": True,
            "textFormat": "HTML",
        }
        response = requests.get(
            self.bing_search_url, headers=headers, params=params  # type: ignore
        )
        response.raise_for_status()
        search_results = response.json()
        return search_results["webPages"]["value"]
    @root_validator(pre=True)
    def validate_environment(cls, values: Dict) -> Dict:
        """Validate that api key and endpoint exists in environment."""
        bing_subscription_key = get_from_dict_or_env(