William Lyon johnymontana

🤠

I'm very normal

Building Graph Intelligence @neo4j

johnymontana / main.py

Created March 11, 2026 23:46

LangFlow Custom Component for Neo4j Agent Memory Integration

	"""
	neo4j-agent-memory + LangFlow Integration
	==========================================
	Demonstrates Reasoning Memory: every tool call the agent makes is stored
	as a graph node in Neo4j, giving you a full, queryable audit trail.

	SETUP
	-----
	pip install neo4j-agent-memory langchain langchain-ollama langflow neo4j

johnymontana / 0_import.cypher

Last active April 12, 2023 15:33

NICAR 2023 Neo4j Workshop

	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Parcel) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Subject) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Bill) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Committee) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Legislator) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Trip) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Organization) REQUIRE n.neo4jImportId IS UNIQUE;
	CREATE CONSTRAINT IF NOT EXISTS FOR (n:Destination) REQUIRE n.neo4jImportId IS UNIQUE;
	CALL apoc.import.json("https://cdn.neo4jlabs.com/data/landgraph/landgraph.json");

johnymontana / cla.json

Last active August 14, 2019 16:45

CLA contributors

johnymontana / movies-typedefs.graphql

Last active April 30, 2019 22:11

johnymontana / legis-graph-type-defs.graphql

Last active April 30, 2019 18:03

johnymontana / inferSchema.js

Created April 30, 2019 02:21

	import { makeAugmentedSchema, inferSchema } from 'neo4j-graphql-js';
	import { ApolloServer } from 'apollo-server';
	import { v1 as neo4j } from 'neo4j-driver';

	// Create Neo4j driver instance
	const driver = neo4j.driver(
	process.env.NEO4J_URI \|\| 'bolt://localhost:7687',
	neo4j.auth.basic(
	process.env.NEO4J_USER \|\| 'neo4j',
	process.env.NEO4J_PASSWORD \|\| 'letmein'

johnymontana / AttendeeGraph.js

Created April 10, 2019 15:30

El Grapho Experiments

	import React from "react";
	import { Component } from "react";
	import { withStyles } from "@material-ui/core/styles";
	import neo4j from "neo4j-driver/lib/browser/neo4j-web";
	import ElGrapho from "elgrapho";

	const styles = theme => ({

	});

johnymontana / ImportUKData.cypher

Created January 24, 2019 20:41

	CREATE CONSTRAINT ON (c:Company) ASSERT c.companyNumber IS UNIQUE;
	CREATE CONSTRAINT ON (p:Person) ASSERT (p.birthMonth, p.birthYear, p.name ) IS NODE KEY;
	CREATE CONSTRAINT ON (p:Property) ASSERT p.titleNumber IS UNIQUE;

	LOAD CSV WITH HEADERS FROM "file:///data/PSCAmericans.csv" AS row
	MERGE (c:Company {companyNumber: row.company_number})
	MERGE (p:Person {name: row.`data.name`, birthYear: row.`data.date_of_birth.year`, birthMonth: row.`data.date_of_birth.month`})
	ON CREATE SET p.nationality = row.`data.nationality`,
	p.countryOfResidence = row.`data.country_of_residence`
	// TODO: Address

johnymontana / issue_comments.cypher

Created December 23, 2018 01:18

	CALL apoc.load.json("file:///Users/lyonwj/Desktop/issue_comments_000001.json") YIELD value
	WITH value WHERE value.issue IS NOT NULL
	MERGE (ic:IssueComment {url: value.url})
	SET ic += value {.body, created_at: DateTime(value.created_at)}
	MERGE (u:User {url: value.user})
	MERGE (u)-[:AUTHORED]->(ic)
	MERGE (r:Issue {url: value.issue})
	MERGE (r)-[:HAS_COMMENT]->(ic)

johnymontana / issues.cypher

Created December 23, 2018 00:17

	CALL apoc.load.json("file:///Users/lyonwj/Desktop/issues_000001.json") YIELD value
	MERGE (i:Issue {url: value.url})
	SET i += value {.title, .body, created_at: DateTime(value.created_at), closed_at: DateTime(value.closed_at)}
	MERGE (u:User {url: value.user})
	MERGE (u)-[:OPENED]->(i)
	MERGE (r:Repository {url: value.repository})
	MERGE (i)<-[:HAS_ISSUE]-(r)