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Drivers & Stacks

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
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Load nodes of a densely connected graph

Hi, I'm very new to neo4j and graph databases (and graph theory in general) so please bear with me if my questions seems basic. I couldn't find a way to solve my issue via search (although it is related to SDN findAll performance and populating entit...

Limit number of nodes created per label

Hi I'm trying to limit the number of nodes create per label. So if I have an author, I want the author to be able to create only five blog posts. How do I achieve this in GraphQL apart from maybe writing a custom resolver? Thanks

Spring, OGM and Transactions

We are using Spring Boot 2.1.16 and experience intermittent issues with relationships being lost (or duplicated) when saving nodes. Have not been able to reliably reproduce the problem. A few times when there has been a reproducable case adding @Tran...

mick by Node
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Spatial value as parameters

I am trying to add 2d points (x and y axis) and 3d points (x,y,z axis) as a property to a node and want to add it as a parameter to the cypher statement. I had create 2 class class Point2D implements Point{} class Point3D implements Point{} where Po...

New neo4j PHP client and driver

Hello everyone, I am the author of the neo4j PHP client library. We have recently released v2.0 which added lots of new features. You can read about the client here: https://medium.com/neo4j/connect-to-neo4j-with-php-e10e24afedff or visit the reposit...

Complex filtering in GraphQL

I'm referring to this post: Complex GraphQL Filtering With neo4j-graphql.js The "simple" filtering works as announced. However, as soon as I filter on a property of a dependent object in the graph, an empty result set is returned. My schema has a cus...

Any way to create when nothing to connect to?

Hi I'm currently looking at connecting a new node to an existing node, but if there is no existing node then I want to create that too. Is there any way to do that? Essentially I have: Post->Link And I want links to be nodes, so if there is a new Pos...

Reactive Example Not Working

I'm using the latest version of Neo4j.Driver.Reactive nuget in C# project. However, the examples don't provide a full working example. The session API - Neo4j .NET Driver Manual has the following: public IObservable GetPeople() { var session = Driv...