46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
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import { Tool } from "@langchain/core/tools";
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/**
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* The DadJokeAPI class is a tool for generating dad jokes based on a
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* specific topic. It fetches jokes from an external API and returns a
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* random joke from the results. If no jokes are found for the given
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* search term, it returns a message indicating that no jokes were found.
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*/
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class DadJokeAPI extends Tool {
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constructor() {
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super(...arguments);
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Object.defineProperty(this, "name", {
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enumerable: true,
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configurable: true,
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writable: true,
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value: "dadjoke"
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});
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Object.defineProperty(this, "description", {
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enumerable: true,
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configurable: true,
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writable: true,
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value: "a dad joke generator. get a dad joke about a specific topic. input should be a search term."
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});
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}
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static lc_name() {
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return "DadJokeAPI";
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}
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/** @ignore */
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async _call(input) {
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const headers = { Accept: "application/json" };
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const searchUrl = `https://icanhazdadjoke.com/search?term=${input}`;
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const response = await fetch(searchUrl, { headers });
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if (!response.ok) {
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throw new Error(`HTTP error ${response.status}`);
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}
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const data = await response.json();
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const jokes = data.results;
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if (jokes.length === 0) {
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return `No dad jokes found about ${input}`;
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}
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const randomIndex = Math.floor(Math.random() * jokes.length);
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const randomJoke = jokes[randomIndex].joke;
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return randomJoke;
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}
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}
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export { DadJokeAPI };
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