90 lines
2.9 KiB
TypeScript
90 lines
2.9 KiB
TypeScript
import { Tool, ToolParams } from "@langchain/core/tools";
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import { SearchOptions } from "duck-duck-scrape";
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export { SafeSearchType, SearchOptions, SearchTimeType, } from "duck-duck-scrape";
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export interface DuckDuckGoSearchParameters extends ToolParams {
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/**
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* The search options for the search using the SearchOptions interface
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* from the duck-duck-scrape package.
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*/
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searchOptions?: SearchOptions;
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/**
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* The maximum number of results to return from the search.
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* Limiting to 10 to avoid context overload.
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* @default 10
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*/
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maxResults?: number;
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}
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/**
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* DuckDuckGo tool integration.
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*
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* Setup:
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* Install `@langchain/community` and `duck-duck-scrape`.
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*
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* ```bash
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* npm install @langchain/community duck-duck-scrape
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* ```
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*
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* ## [Constructor args](https://api.js.langchain.com/classes/_langchain_community.tools_duckduckgo_search.DuckDuckGoSearch.html#constructor)
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*
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* <details open>
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* <summary><strong>Instantiate</strong></summary>
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*
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* ```typescript
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* import { DuckDuckGoSearch } from "@langchain/community/tools/duckduckgo_search";
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*
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* const tool = new DuckDuckGoSearch({ maxResults: 1 });
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* ```
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* </details>
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*
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* <br />
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*
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* <details>
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*
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* <summary><strong>Invocation</strong></summary>
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*
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* ```typescript
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* await tool.invoke("what is the current weather in sf?");
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*
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* // output: [{"title":"San Francisco, CA Current Weather | AccuWeather","link":"https://www.accuweather.com/en/us/san-francisco/94103/current-weather/347629","snippet":"<b>Current</b> <b>weather</b> <b>in</b> San Francisco, CA. Check <b>current</b> conditions in San Francisco, CA with radar, hourly, and more."}]
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* ```
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* </details>
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*
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* <br />
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*
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* <details>
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*
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* <summary><strong>Invocation with tool call</strong></summary>
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*
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* ```typescript
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* // This is usually generated by a model, but we'll create a tool call directly for demo purposes.
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* const modelGeneratedToolCall = {
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* args: {
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* input: "what is the current weather in sf?",
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* },
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* id: "tool_call_id",
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* name: tool.name,
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* type: "tool_call",
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* };
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* await tool.invoke(modelGeneratedToolCall);
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* ```
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*
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* ```text
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* ToolMessage {
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* "content": "[{\"title\":\"San Francisco, CA Weather Conditions | Weather Underground\",\"link\":\"https://www.wunderground.com/weather/us/ca/san-francisco\",\"snippet\":\"San Francisco <b>Weather</b> Forecasts. <b>Weather</b> Underground provides local & long-range <b>weather</b> forecasts, weatherreports, maps & tropical <b>weather</b> conditions for the San Francisco area.\"}]",
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* "name": "duckduckgo-search",
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* "additional_kwargs": {},
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* "response_metadata": {},
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* "tool_call_id": "tool_call_id"
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* }
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* ```
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* </details>
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*/
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export declare class DuckDuckGoSearch extends Tool {
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private searchOptions?;
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private maxResults;
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constructor(params?: DuckDuckGoSearchParameters);
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static lc_name(): string;
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name: string;
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description: string;
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_call(input: string): Promise<string>;
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}
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