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600b7bdd61
Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""Tool for the Reddit search API."""
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from typing import Optional, Type
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from langchain_core.callbacks import CallbackManagerForToolRun
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from langchain_core.tools import BaseTool
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from pydantic import BaseModel, Field
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from langchain_community.utilities.reddit_search import RedditSearchAPIWrapper
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class RedditSearchSchema(BaseModel):
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"""Input for Reddit search."""
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query: str = Field(
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description="should be query string that post title should \
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contain, or '*' if anything is allowed."
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)
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sort: str = Field(
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description='should be sort method, which is one of: "relevance" \
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, "hot", "top", "new", or "comments".'
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)
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time_filter: str = Field(
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description='should be time period to filter by, which is \
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one of "all", "day", "hour", "month", "week", or "year"'
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)
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subreddit: str = Field(
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description='should be name of subreddit, like "all" for \
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r/all'
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)
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limit: str = Field(
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description="a positive integer indicating the maximum number \
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of results to return"
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)
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class RedditSearchRun(BaseTool): # type: ignore[override, override]
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"""Tool that queries for posts on a subreddit."""
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name: str = "reddit_search"
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description: str = (
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"A tool that searches for posts on Reddit."
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"Useful when you need to know post information on a subreddit."
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)
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api_wrapper: RedditSearchAPIWrapper = Field(default_factory=RedditSearchAPIWrapper) # type: ignore[arg-type]
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args_schema: Type[BaseModel] = RedditSearchSchema
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def _run(
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self,
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query: str,
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sort: str,
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time_filter: str,
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subreddit: str,
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limit: str,
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run_manager: Optional[CallbackManagerForToolRun] = None,
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) -> str:
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"""Use the tool."""
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return self.api_wrapper.run(
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query=query,
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sort=sort,
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time_filter=time_filter,
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subreddit=subreddit,
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limit=int(limit),
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)
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