@langchain/community
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Third-party integrations for LangChain.js
70 lines (69 loc) • 2.77 kB
JavaScript
import { __exportAll } from "../../_virtual/_rolldown/runtime.js";
import { getEnvironmentVariable } from "@langchain/core/utils/env";
import { Document } from "@langchain/core/documents";
import { BaseDocumentLoader } from "@langchain/core/document_loaders/base";
import FirecrawlApp from "@mendable/firecrawl-js";
//#region src/document_loaders/web/firecrawl.ts
var firecrawl_exports = /* @__PURE__ */ __exportAll({ FireCrawlLoader: () => FireCrawlLoader });
/**
* Class representing a document loader for loading data from
* Firecrawl (firecrawl.dev). It extends the BaseDocumentLoader class.
* @example
* ```typescript
* const loader = new FireCrawlLoader({
* url: "{url}",
* apiKey: "{apiKey}",
* mode: "crawl"
* });
* const docs = await loader.load();
* ```
*/
var FireCrawlLoader = class extends BaseDocumentLoader {
apiKey;
apiUrl;
url;
mode;
params;
constructor(loaderParams) {
super();
const { apiKey = getEnvironmentVariable("FIRECRAWL_API_KEY"), apiUrl, url, mode = "crawl", params } = loaderParams;
if (!apiKey) throw new Error("Firecrawl API key not set. You can set it as FIRECRAWL_API_KEY in your .env file, or pass it to Firecrawl.");
this.apiKey = apiKey;
this.apiUrl = apiUrl;
this.url = url;
this.mode = mode;
this.params = params;
}
/**
* Loads data from Firecrawl.
* @returns An array of Documents representing the retrieved data.
* @throws An error if the data could not be loaded.
*/
async load() {
const params = { apiKey: this.apiKey };
if (this.apiUrl !== void 0) params.apiUrl = this.apiUrl;
const app = new FirecrawlApp(params);
let firecrawlDocs;
if (this.mode === "scrape") {
const response = await app.scrapeUrl(this.url, this.params);
if (!response.success) throw new Error(`Firecrawl: Failed to scrape URL. Error: ${response.error}`);
firecrawlDocs = [response];
} else if (this.mode === "crawl") {
const response = await app.crawlUrl(this.url, this.params);
if (!response.success) throw new Error(`Firecrawl: Failed to crawl URL. Error: ${response.error}`);
firecrawlDocs = response.data;
} else if (this.mode === "map") {
const response = await app.mapUrl(this.url, this.params);
if (!response.success) throw new Error(`Firecrawl: Failed to map URL. Error: ${response.error}`);
firecrawlDocs = response.links;
return firecrawlDocs.map((doc) => new Document({ pageContent: JSON.stringify(doc) }));
} else throw new Error(`Unrecognized mode '${this.mode}'. Expected one of 'crawl', 'scrape'.`);
return firecrawlDocs.map((doc) => new Document({
pageContent: doc.markdown || doc.html || doc.rawHtml || "",
metadata: doc.metadata || {}
}));
}
};
//#endregion
export { FireCrawlLoader, firecrawl_exports };
//# sourceMappingURL=firecrawl.js.map