GRAPHGENGraphDB Prototyping made easy

#FOSDEM31-01-2015

graphgen.neoxygen.io

#whoami

Christophe WillemsenSoftware Engineer

Neo4j Consultant

World’s #1Neo4j consultancy

@graph_awaregraphaware.com

@ikwattro

WHY GRAPHGEN ?QUICK OVERVIEW ABOUT THE NEO4J NATIVE TOOLS

TO BUILD A GRAPH

BY HANDCREATE (n:Person {firstname: ‘Roger’, lastname:’Laguadec’})

100XFor 100 nodes and you need to be really inventive

for the node properties

A LOOPFOREACH ( i in range(0,99) | CREATE (n:Person

{id:i} ) )Not non-developer friendly and no properties except the id

LOAD CSVUSING PERIODIC COMMIT 1000

LOAD CSV WITH HEADERS FROM FILE‘file:///Users/me/docs/import.csv’ AS line

MERGE (n:Person {firstname: line.firstname} )

You need initial data !

GRAPH MODEL DECISIONS

GRAPH MODEL DECISIONS

WITH GRAPHGEN THEN ?(p:Person {firstname: firstName, lastname:

lastName} *100)(p)-[:KNOWS *n..n]->(p)

100 NODES

REAL VALUES

Many 2 ManyRelationships

At 80%

DEMO 1

NODES SYNTAXBASED OFF THE AMAZING CYPHER QUERY LANGUAGE!

(p:Person {firstname: firstName} *100 )

identifierlabel

Node property key

Sample dateprovider type amount

RELATIONSHIPS SYNTAXBASEE SUR LE LANGAGE CYPHER !

-[:KNOWS {since: unixTime} *n..n ]->

type

Relationship propertykey

Sample dataProvider type cardinality

PROPERTY PARAMETERSE.g.: I want 100 person nodes with a name and a birth date, the birth

date Should be realistic so that people are adults and not already in

retirement.(p:Personne {nom: fullName, ddn: { dateTimeBetween: [‘’-65 years’’, ‘’-18

years’’]}} *100)YAML inline

Sample data providers• word• sentence• dateTime• dateTimeBetween• text• unixTime• randomDigit• numberBetween• company• firstName, lastName• country• city• address

• latitude, longitude• url• username• password• creditCardNumber• ip• userAgent• uuid• ean13• fileExtension• hashTag• …… et plein d’autres

DEMO 2

GRAPHGEN CAN DO BETTER

NODE MODELSWRITING THIS:

(user:User:Person {_id: uuid,login: userName,password: password,email: email,prenom: firstName,nom: lastName,ddn: { dateTimeBetween: [‘’-50 years’’, ‘’-18

years’’]}} *100)IS LONG TO WRITE AND REPETITIVE

IF YOU USE GRAPHGEN A LOT( which is good in fact )

NODE MODELSTHIS IS BETTER AND PEOPLE SAY WOW:

(user:#User:#Person *100)

# = Node model activation

NODE MODELS

• #Person• #User• #Tweet• #File• #HashTag• #BlogPost• #Company• … and soon you’ll be able to create your own models in

the Graphgen UI

TIPS & TRICKS

TIP 1Fixed Value

SOLUTION: randomElement with 1 element

(p:Person:Administrator {group: {randomElement:[‘’ADMIN’’]}} *20)

GRAPHGEN THE GOOD POINTS

• BASED ON CYPHER SPEC (NO NEW SYNTAX TO LEARN)

• FOR EVERYBODY• PROPERTY VALUES GENERATION• IMMEDIATE VISUALISATION FEEDBACK• IMPORT WHAT YOU SEE IN YOUR DATABASE• EXPORT

NOT SO BAD

GRAPHGEN THE BAD POINTS

• YOUNG PROJECT WORKED ON IN FREE TIME (10 OCTOBER)

• ADAPT TO 75% OF GRAPH MODELING POSSIBILITIES• LIMITED TO 1000 NODES IN THE WEBAPP (DUE TO THE

VIZ) AND NO LIMIT IN THE CLI VERSION (well your memory could be the limit)

SOON IN GRAPHGEN

• User Dashboard • Define your own models• Define cardinalities percentage • Define indexed and unique constraints• Public API• More export formats

QUESTIONS ?

THANK YOU Graphgen : http://graphgen.neoxygen.io

PHP components for Neo4j : https://github.com/neoxygen

Follow me : @ikwattro