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82f0198be2
Issue: The `graph` code was moved into the `community` package a long ago. But the related documentation is still in the [use_cases](https://python.langchain.com/docs/use_cases/graph/integrations/diffbot_graphtransformer) section and not in the `integrations`. Changes: - moved the `use_cases/graph/integrations` notebooks into the `integrations/graphs` - renamed files and changed titles to follow the consistent format - redirected old page URLs to new URLs in `vercel.json` and in several other pages - added descriptions and links when necessary - formatted into the consistent format
83 lines
2.2 KiB
Plaintext
83 lines
2.2 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Amazon Neptune with Cypher\n",
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"\n",
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">[Amazon Neptune](https://aws.amazon.com/neptune/) is a high-performance graph analytics and serverless database for superior scalability and availability.\n",
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">\n",
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">This example shows the QA chain that queries the `Neptune` graph database using `openCypher` and returns a human-readable response.\n",
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">\n",
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">[Cypher](https://en.wikipedia.org/wiki/Cypher_(query_language)) is a declarative graph query language that allows for expressive and efficient data querying in a property graph.\n",
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">\n",
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">[openCypher](https://opencypher.org/) is an open-source implementation of Cypher."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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"source": [
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"from langchain_community.graphs import NeptuneGraph\n",
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"\n",
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"host = \"<neptune-host>\"\n",
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"port = 8182\n",
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"use_https = True\n",
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"\n",
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"graph = NeptuneGraph(host=host, port=port, use_https=use_https)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'The Austin airport has 98 outgoing routes.'"
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]
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},
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"execution_count": 3,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"from langchain.chains import NeptuneOpenCypherQAChain\n",
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"from langchain_openai import ChatOpenAI\n",
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"\n",
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"llm = ChatOpenAI(temperature=0, model=\"gpt-4\")\n",
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"\n",
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"chain = NeptuneOpenCypherQAChain.from_llm(llm=llm, graph=graph)\n",
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"\n",
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"chain.run(\"how many outgoing routes does the Austin airport have?\")"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.12"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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