/neo4j-spring-demo

This project represents demo app written using spring and neo4j. It shows how to run basic queries.

Primary LanguageJava

Neo4J Spring Demo App

This is a simple spring demo application that connects to Neo4J graph database and executes some basic queries over initial demo dataset.

Run Application

docker-compose up -d

Load Initial Data

  1. Open neo4j dashboard in browser http://localhost:7474

  2. Copy initial load data into query input field and execute

This will create the movie graph!

Data model

movies model

Nodes

  • Movie
  • Person

Relationships

  • (:Person)-[:ACTED_IN]->(:Movie)
  • (:Person)-[:DIRECTED]->(:Movie)
  • (:Person)-[:FOLLOWS]->(:Movie)
  • (:Person)-[:PRODUCED]->(:Movie)
  • (:Person)-[:REVIEWED]->(:Movie)
  • (:Person)-[:WROTE]->(:Movie)

API

Purpose of this api is to test Neo4J and its features so only basic operations are implemented.

Open swagger in browser http://localhost:8080/swagger/swagger-ui.html

Api provides you following functionalities:

  • List all movies for actor
  • Find movie details by movie title
  • Find all movies in database
  • Find all actors in a movie
  • Find all directors in database
  • Find all review for a movie

Examples

Some of example queries to try on this dataset:

Find actor named Tom Hanks

MATCH (tom {name: "Tom Hanks"}) 
RETURN tom

Find 10 people

MATCH (people:Person) 
RETURN people.name 
LIMIT 10

Find movies released in 1990s

MATCH (nineties:Movie) WHERE nineties.released >= 1990 AND nineties.released < 2000 
RETURN nineties.title

Find all Tom Hanks movies

MATCH (tom:Person {name: "Tom Hanks"})-[:ACTED_IN]->(tomHanksMovies) 
RETURN tom,tomHanksMovies

Who directed "Cloud Atlas"

MATCH (cloudAtlas {title: "Cloud Atlas"})<-[:DIRECTED]-(directors) 
RETURN directors.name

Tom Hanks co-actors

MATCH (tom:Person {name:"Tom Hanks"})-[:ACTED_IN]->(m)<-[:ACTED_IN]-(coActors) 
RETURN coActors.name

Movies and actors up to 4 "hops" away from Kevin Bacon

MATCH (bacon:Person {name:"Kevin Bacon"})-[*1..4]-(hollywood)
RETURN DISTINCT hollywood

Bacon path, the shortest path of any relationships to Meg Ryan

MATCH p=shortestPath(
(bacon:Person {name:"Kevin Bacon"})-[*]-(meg:Person {name:"Meg Ryan"})
)
RETURN p

Find someone to introduce Tom Hanks to Tom Cruise

MATCH (tom:Person {name:"Tom Hanks"})-[:ACTED_IN]->(m)<-[:ACTED_IN]-(coActors),
  (coActors)-[:ACTED_IN]->(m2)<-[:ACTED_IN]-(cruise:Person {name:"Tom Cruise"})
RETURN tom, m, coActors, m2, cruise

Delete all Movie and Person nodes, and their relationships

MATCH (n) DETACH DELETE n

Resources

Check Official Neo4J Documentation

More Examples