87 lines
2.7 KiB
JavaScript
87 lines
2.7 KiB
JavaScript
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.BrowserbaseLoader = void 0;
|
|
const documents_1 = require("@langchain/core/documents");
|
|
const base_1 = require("@langchain/core/document_loaders/base");
|
|
const sdk_1 = __importDefault(require("@browserbasehq/sdk"));
|
|
/**
|
|
* Load pre-rendered web pages using a headless browser hosted on Browserbase.
|
|
*
|
|
* Depends on `@browserbasehq/sdk` package.
|
|
* Get your API key from https://browserbase.com
|
|
*
|
|
* @example
|
|
* ```typescript
|
|
* import { BrowserbaseLoader } from "langchain/document_loaders/web/browserbase";
|
|
*
|
|
* const loader = new BrowserbaseLoader(["https://example.com"], {
|
|
* apiKey: process.env.BROWSERBASE_API_KEY,
|
|
* textContent: true,
|
|
* });
|
|
*
|
|
* const docs = await loader.load();
|
|
* ```
|
|
*
|
|
* @param {string[]} urls - The URLs of the web pages to load.
|
|
* @param {BrowserbaseLoaderOptions} [options] - Browserbase client options.
|
|
*/
|
|
class BrowserbaseLoader extends base_1.BaseDocumentLoader {
|
|
constructor(urls, options = {}) {
|
|
super();
|
|
Object.defineProperty(this, "urls", {
|
|
enumerable: true,
|
|
configurable: true,
|
|
writable: true,
|
|
value: void 0
|
|
});
|
|
Object.defineProperty(this, "options", {
|
|
enumerable: true,
|
|
configurable: true,
|
|
writable: true,
|
|
value: void 0
|
|
});
|
|
Object.defineProperty(this, "browserbase", {
|
|
enumerable: true,
|
|
configurable: true,
|
|
writable: true,
|
|
value: void 0
|
|
});
|
|
this.urls = urls;
|
|
this.options = options;
|
|
this.browserbase = new sdk_1.default(options);
|
|
}
|
|
/**
|
|
* Load pages from URLs.
|
|
*
|
|
* @returns {Promise<DocumentInterface[]>} - A promise which resolves to a list of documents.
|
|
*/
|
|
async load() {
|
|
const documents = [];
|
|
for await (const doc of this.lazyLoad()) {
|
|
documents.push(doc);
|
|
}
|
|
return documents;
|
|
}
|
|
/**
|
|
* Load pages from URLs.
|
|
*
|
|
* @returns {Generator<DocumentInterface>} - A generator that yields documents.
|
|
*/
|
|
async *lazyLoad() {
|
|
const pages = await this.browserbase.loadURLs(this.urls, this.options);
|
|
let index = 0;
|
|
for await (const page of pages) {
|
|
yield new documents_1.Document({
|
|
pageContent: page,
|
|
metadata: {
|
|
url: this.urls[index],
|
|
},
|
|
});
|
|
index += index + 1;
|
|
}
|
|
}
|
|
}
|
|
exports.BrowserbaseLoader = BrowserbaseLoader;
|