Harrison/fauna loader (#5864)

Co-authored-by: Shadid12 <Shadid12@users.noreply.github.com>

docs/modules/indexes/document_loaders/examples/fauna.ipynb

@@ -0,0 +1,84 @@
+{
+ "cells": [
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Fauna\n",
+    "\n",
+    ">[Fauna](https://fauna.com/) is a Document Database.\n",
+    "\n",
+    "Query `Fauna` documents"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#!pip install fauna"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Query data example"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from langchain.document_loaders.fauna import FaunaLoader\n",
+    "\n",
+    "secret = \"<enter-valid-fauna-secret>\"\n",
+    "query = \"Item.all()\" # Fauna query. Assumes that the collection is called \"Item\"\n",
+    "field = \"text\" # The field that contains the page content. Assumes that the field is called \"text\"\n",
+    "\n",
+    "loader = FaunaLoader(query, field, secret)\n",
+    "docs = loader.lazy_load()\n",
+    "\n",
+    "for value in docs:\n",
+    "    print(value)"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Query with Pagination\n",
+    "You get a `after` value if there are more data. You can get values after the curcor by passing in the `after` string in query. \n",
+    "\n",
+    "To learn more following [this link](https://fqlx-beta--fauna-docs.netlify.app/fqlx/beta/reference/schema_entities/set/static-paginate)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "query = \"\"\"\n",
+    "Item.paginate(\"hs+DzoPOg ... aY1hOohozrV7A\")\n",
+    "Item.all()\n",
+    "\"\"\"\n",
+    "loader = FaunaLoader(query, field, secret)"
+   ]
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  },
+  "orig_nbformat": 4
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}