Showing results for 
Search instead for 
Did you mean: 

Head's Up! Site migration is underway. Phase 2: migrate recent content

Forum Posts

About the Drivers & Stacks category

All applications using Neo4j depend on drivers to execute statements to update or query data. Neo4j drivers are mostly built on the binary Bolt protocol. Official drivers exist for Java, JavaScript, .Net, Python, and Go and more. Other languages (R, ...

yolande by Community Team
  • 0 replies
  • 0 kudos

Updating UI after a useMutation

I built a page similar to the UserList.js (in the GRANDstack starter project, ui-react) where I can search for articles in our Product Data Graph. To delete an article from the list (and in the graph), I use the useMutation react hook from Apollo Ser...

Javascript neo4j-driver and async function

Up to now, I managed to have my function that run the queries being able to return a result immediately. so the structure of my functions where var session = driver.session(); return[QUERY]).then(result=> return ....) I...

bruno_c by Node Link
  • 1 replies
  • 0 kudos

Resolved! Neo4j RelationshipEntity not persisted

Hi everyone, I'm having some issues getting a neo4j RelationshipEntity persisted with neo4j and Spring Boot. I have a simple NodeEntity, which contains a collection for the RelationshipEntity: @NodeEntity public class Book { @Id @GeneratedVal...

Neo4j not mapping relationship

im having issue while trying to get node mapping in neo4j(spring boot) the problem is like this : I have already node User created in DB now what Im doing is trying to create node Channel and create outgoing relationship CREATED_BY from Channel to Us...

Spark UDF calling neo4j

Hi, On my app I have data of 5 million users. I load it into Neo4j as a graph. Also, on Spark I processed the data, and for each user I need to query Neo4j. I did it using a spark UDF, that http calls Neo4j server. It took too long and get connection...

idayan by Node
  • 2 replies
  • 0 kudos

Write restrictions from user defined function

I wrote a user defined function, which basically looks like this: @Context public Transaction tx; @UserFunction public Node createNode(@Name("labelName") String name) { Node newNode = tx.createNode(Label.label(name)); return newNode; } After...

Lazy loading while adding new relation

Hi, I'm building a music advice system with Spring using neo4j. // User Model @Relationship (type = "LIKE", direction = OUTGOING) private List likedArtists = new ArrayList (); public void likeArtist (Artist artist) { likedArtists.add (artist); } Whe...

farad4y by Node
  • 3 replies
  • 1 kudos

Adding attributes to relations in Graphaware TimeTree

Hi, a quick question, is there a way to add attributes to the relations from an existing node to the timetree using graphaware timetree? To be precise, in the example given on the Github page (, say, I wan...

sid by Node
  • 0 replies
  • 0 kudos