docs[minor]: Update unstructured doc loader (#6344)

* docs[minor]: Update unstructured doc loader

* cr

docs/core_docs/docs/integrations/document_loaders/file_loaders/unstructured.ipynb

@@ -0,0 +1,243 @@
+{
+ "cells": [
+  {
+   "cell_type": "raw",
+   "metadata": {
+    "vscode": {
+     "languageId": "raw"
+    }
+   },
+   "source": [
+    "---\n",
+    "sidebar_label: Unstructured\n",
+    "sidebar_class_name: node-only\n",
+    "---"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# UnstructuredLoader\n",
+    "\n",
+    "```{=mdx}\n",
+    "\n",
+    ":::tip Compatibility\n",
+    "\n",
+    "Only available on Node.js.\n",
+    "\n",
+    ":::\n",
+    "\n",
+    "```\n",
+    "\n",
+    "This notebook provides a quick overview for getting started with `UnstructuredLoader` [document loaders](/docs/concepts/#document-loaders). For detailed documentation of all `UnstructuredLoader` features and configurations head to the [API reference](https://api.js.langchain.com/classes/langchain_community_document_loaders_fs_unstructured.UnstructuredLoader.html).\n",
+    "\n",
+    "## Overview\n",
+    "### Integration details\n",
+    "\n",
+    "| Class | Package | Compatibility | Local | [PY support](https://python.langchain.com/docs/integrations/document_loaders/unstructured_file) | \n",
+    "| :--- | :--- | :---: | :---: |  :---: |\n",
+    "| [UnstructuredLoader](https://api.js.langchain.com/classes/langchain_community_document_loaders_fs_unstructured.UnstructuredLoader.html) | [@langchain/community](https://api.js.langchain.com/modules/langchain_community_document_loaders_fs_unstructured.html) | Node-only | ✅ | ✅ |\n",
+    "\n",
+    "## Setup\n",
+    "\n",
+    "To access `UnstructuredLoader` document loader you'll need to install the `@langchain/community` integration package, and create an Unstructured account and get an API key.\n",
+    "\n",
+    "### Local\n",
+    "\n",
+    "You can run Unstructured locally in your computer using Docker. To do so, you need to have Docker installed. You can find the instructions to install Docker [here](https://docs.docker.com/get-docker/).\n",
+    "\n",
+    "```bash\n",
+    "docker run -p 8000:8000 -d --rm --name unstructured-api downloads.unstructured.io/unstructured-io/unstructured-api:latest --port 8000 --host 0.0.0.0\n",
+    "```\n",
+    "\n",
+    "### Credentials\n",
+    "\n",
+    "Head to [unstructured.io](https://unstructured.io/api-key-hosted) to sign up to Unstructured and generate an API key. Once you've done this set the `UNSTRUCTURED_API_KEY` environment variable:\n",
+    "\n",
+    "```bash\n",
+    "export UNSTRUCTURED_API_KEY=\"your-api-key\"\n",
+    "```\n",
+    "\n",
+    "### Installation\n",
+    "\n",
+    "The LangChain UnstructuredLoader integration lives in the `@langchain/community` package:\n",
+    "\n",
+    "```{=mdx}\n",
+    "import IntegrationInstallTooltip from \"@mdx_components/integration_install_tooltip.mdx\";\n",
+    "import Npm2Yarn from \"@theme/Npm2Yarn\";\n",
+    "\n",
+    "<IntegrationInstallTooltip></IntegrationInstallTooltip>\n",
+    "\n",
+    "<Npm2Yarn>\n",
+    "  @langchain/community\n",
+    "</Npm2Yarn>\n",
+    "\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Instantiation\n",
+    "\n",
+    "Now we can instantiate our model object and load documents:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import { UnstructuredLoader } from \"@langchain/community/document_loaders/fs/unstructured\"\n",
+    "\n",
+    "const loader = new UnstructuredLoader(\"../../../../../../examples/src/document_loaders/example_data/notion.md\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Load"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Document {\n",
+      "  pageContent: '# Testing the notion markdownloader',\n",
+      "  metadata: {\n",
+      "    filename: 'notion.md',\n",
+      "    languages: [ 'eng' ],\n",
+      "    filetype: 'text/plain',\n",
+      "    category: 'NarrativeText'\n",
+      "  },\n",
+      "  id: undefined\n",
+      "}\n"
+     ]
+    }
+   ],
+   "source": [
+    "const docs = await loader.load()\n",
+    "docs[0]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{\n",
+      "  filename: 'notion.md',\n",
+      "  languages: [ 'eng' ],\n",
+      "  filetype: 'text/plain',\n",
+      "  category: 'NarrativeText'\n",
+      "}\n"
+     ]
+    }
+   ],
+   "source": [
+    "console.log(docs[0].metadata)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Directories\n",
+    "\n",
+    "You can also load all of the files in the directory using [`UnstructuredDirectoryLoader`](https://v02.api.js.langchain.com/classes/langchain_document_loaders_fs_unstructured.UnstructuredDirectoryLoader.html), which inherits from [`DirectoryLoader`](/docs/integrations/document_loaders/file_loaders/directory):\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "Unknown file type: Star_Wars_The_Clone_Wars_S06E07_Crisis_at_the_Heart.srt\n",
+      "Unknown file type: test.mp3\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "directoryDocs.length:  247\n",
+      "Document {\n",
+      "  pageContent: 'Bitcoin: A Peer-to-Peer Electronic Cash System',\n",
+      "  metadata: {\n",
+      "    filetype: 'application/pdf',\n",
+      "    languages: [ 'eng' ],\n",
+      "    page_number: 1,\n",
+      "    filename: 'bitcoin.pdf',\n",
+      "    category: 'Title'\n",
+      "  },\n",
+      "  id: undefined\n",
+      "}\n"
+     ]
+    }
+   ],
+   "source": [
+    "import { UnstructuredDirectoryLoader } from \"@langchain/community/document_loaders/fs/unstructured\";\n",
+    "\n",
+    "const directoryLoader = new UnstructuredDirectoryLoader(\n",
+    "  \"../../../../../../examples/src/document_loaders/example_data/\",\n",
+    "  {}\n",
+    ");\n",
+    "const directoryDocs = await directoryLoader.load();\n",
+    "console.log(\"directoryDocs.length: \", directoryDocs.length);\n",
+    "console.log(directoryDocs[0])\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## API reference\n",
+    "\n",
+    "For detailed documentation of all UnstructuredLoader features and configurations head to the API reference: https://api.js.langchain.com/classes/langchain_community_document_loaders_fs_unstructured.UnstructuredLoader.html"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "TypeScript",
+   "language": "typescript",
+   "name": "tslab"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "mode": "typescript",
+    "name": "javascript",
+    "typescript": true
+   },
+   "file_extension": ".ts",
+   "mimetype": "text/typescript",
+   "name": "typescript",
+   "version": "3.7.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}