feat: init neo4j templates

Neo4j/Neo4j_Create_Node.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "143c505b",
+   "metadata": {
+    "execution": {
+     "iopub.execute_input": "2021-02-23T14:22:16.610471Z",
+     "iopub.status.busy": "2021-02-23T14:22:16.610129Z",
+     "iopub.status.idle": "2021-02-23T14:22:16.627784Z",
+     "shell.execute_reply": "2021-02-23T14:22:16.626866Z",
+     "shell.execute_reply.started": "2021-02-23T14:22:16.610384Z"
+    },
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "<img width=\"8%\" alt=\"Neo4j.png\" src=\"https://raw.githubusercontent.com/jupyter-naas/awesome-notebooks/master/.github/assets/logos/Neo4j.png\" style=\"border-radius: 15%\">"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "bafb077c",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "# Neo4j - Create Node"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "cb407ea8",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "**Tags:** #neo4j #knowledgegraph #node #snippet"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3fa65002",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "**Author:** [Florent Ravenel](https://www.linkedin.com/in/florent-ravenel)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c7851585",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "**Last update:** 2024-05-22 (Created: 2024-05-22)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "188a2da0",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "**Description:** This notebook creates a node with properties in Neo4j using a Cypher query."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "498e71dd",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "## Input"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d2366b9a",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "### Import libraries"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "61e8eabc-4c9f-4314-bc1e-3c09b4c3266c",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "from neo4j import GraphDatabase\n",
+    "from datetime import datetime"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4acf67a5",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "### Setup variables\n",
+    "- `url`: Database connection URL\n",
+    "- `user`: Database username\n",
+    "- `password`: Database password\n",
+    "- `node_type`: Node type to be updated\n",
+    "- `node_id`: Identifier of the node to be updated\n",
+    "- `node_id_label`: Label for the node identifier\n",
+    "- `properties`: Custom properties for the node\n",
+    "- `output_file_path`: Path for the output file"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e98a53eb",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "url = \"bolt://localhost:7687\"\n",
+    "user = \"neo4j\"\n",
+    "password = \"password\"\n",
+    "node_type = \"Person\"  # Type of node to update\n",
+    "node_id = \"John\"  # Identifier of node to update\n",
+    "node_id_label = \"id\"\n",
+    "properties = {\"name\": \"John\", \"age\": 30, \"city\": \"New York\", \"birthdate\": datetime(1990, 5, 17).strftime(\"%Y-%m-%dT%H:%M:%S\")}  # Custom properties for node\n",
+    "output_file_path = 'query_output.txt'  # Output file path"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f91368ae",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "## Model"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f1fa2ed4-5944-41e1-99f9-0fb2288e0683",
+   "metadata": {},
+   "source": [
+    "### Connect to GraphDatabase"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c4f3bf28-1661-4a17-98c0-02140aead632",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "driver = GraphDatabase.driver(url, auth=(username, password))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6223fb35",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "### Create a node with custom type and properties in Neo4j"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c164f0e3-3c2d-4c5d-ae5c-71df38cb4223",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "def create_node(\n",
+    "    driver,\n",
+    "    node_type,\n",
+    "    node_id,\n",
+    "    node_id_label=\"id\",\n",
+    "    properties=[],\n",
+    "    output_file_path='cypher_query.txt'\n",
+    "):\n",
+    "    # Function to create a node with custom type and properties in Neo4j\n",
+    "    def create_custom_node(tx, node_type, node_id, node_id_label, properties):\n",
+    "        # Prepare properties string for Cypher query\n",
+    "        properties_list = []\n",
+    "        for key, value in properties.items():\n",
+    "            if 'date' in key:\n",
+    "                properties_list.append(f'n.{key} = datetime(\"{value}\")')\n",
+    "            elif isinstance(value, int) or isinstance(value, float):\n",
+    "                properties_list.append(f'n.{key} = {value}')\n",
+    "            else:\n",
+    "                properties_list.append(f'n.{key} = \"{value}\"')\n",
+    "        properties_str = ', '.join(properties_list)\n",
+    "        \n",
+    "        # Create cypher query\n",
+    "        cypher_query = f\"MERGE (n:{node_type} {{{node_id_label}: '{node_id}'}}) SET {properties_str}\"\n",
+    "        tx.run(cypher_query)\n",
+    "        with open(output_file_path, 'w') as f:  # Open the output file in write mode\n",
+    "            f.write(cypher_query)  # Write the query to the output file\n",
+    "\n",
+    "    ### Use the driver to create a session and run the function\n",
+    "    with driver.session() as session:\n",
+    "        session.execute_write(create_custom_node, node_type, node_id, node_id_label, properties)\n",
+    "\n",
+    "    ## Output\n",
+    "    ### Print success message\n",
+    "    print(\"Node created successfully.\")\n",
+    "    print(f\"Cypher query stored in {output_file_path}.\")\n",
+    "    \n",
+    "create_node(\n",
+    "    driver,\n",
+    "    node_type,\n",
+    "    node_id,\n",
+    "    node_id_label,\n",
+    "    properties,\n",
+    "    output_file_path\n",
+    ")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8dfea0ee",
+   "metadata": {
+    "papermill": {},
+    "tags": []
+   },
+   "source": [
+    "## Output"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "cde6062b-7b01-473e-a2e7-2c76937e257f",
+   "metadata": {},
+   "source": [
+    "### Display cypher query"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "3ca6b668-9c69-4d00-bc17-fbe47c3dfd22",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "with open(output_file_path, 'r') as f:\n",
+    "    data = f.read()\n",
+    "print(f\"Cypher query: {data}\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.6"
+  },
+  "naas": {
+   "notebook_id": "0ee0ab05a4a7ec68df589076942e71a2dd9a2548b6324496dae89565be89e92a",
+   "notebook_path": "LangChain/LangChain_Create_Agent.ipynb"
+  },
+  "papermill": {
+   "default_parameters": {},
+   "environment_variables": {},
+   "parameters": {},
+   "version": "2.6.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}