Neo4jClient | .NET client binding for Neo4j
kandi X-RAY | Neo4jClient Summary
kandi X-RAY | Neo4jClient Summary
A .NET client for Neo4j. Supports Cypher queries via fluent interfaces, and some indexing operations. Grab the latest drop straight from the Neo4jClient package on NuGet. Read our wiki docs - Currently OUT OF DATE.
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Community Discussions
Trending Discussions on Neo4jClient
QUESTION
I'm trying to convert a specific query, which works in the Neo4j graphical interface, to an implementation using the Neo4jClient in C#.
I want to get all the relation types of the result nodes in a list. This is possible using the following query:
...ANSWER
Answered 2021-Nov-10 at 12:10You can probably use a .With()
statement for this:
QUESTION
I've been wanting to deserialize automatically from a Cypher Result into their corresponding objects via neo4jclient.
These are the classes I want it to deserialize into
...ANSWER
Answered 2021-Oct-14 at 13:29You're 100% correct that the reason it didn't create your QuestionHub
instance is because the return was entirely in the wrong format for the client to cope with.
Unfortunately - your with
workaround is about the only way - As you're using it to return the output of Cypher into a format that the Json Deserializer can handle.
The best I can see to do would be this:
QUESTION
I am using neo4jclient graph database with .net core API. I have to add the health checks. I have created my own health check using Ihealthcheck interface. below is my healthcheck class
public class DatabaseHealthCheck : IHealthCheck
...ANSWER
Answered 2021-Apr-16 at 08:28The query you're writing will not return anything, what you're actually executing is:
QUESTION
I have a query that returns a list of object with properties. Consider a C# object with like this structure:
...ANSWER
Answered 2021-Feb-01 at 12:39I think the problem is your:
QUESTION
I'm using Neo4JClient in .NET Core web application (I created it in VisualStudio version 2019 template) and I had code that works as expected for my example.
I have 3 types of node: Category
(important property name
- string), Document
(important CreatedBy
- represents name of User
who created it, other properties are used after WHERE
), User
(important Username
- string). Document can have TAG
relationship with Category
and User
can have INTERESTED_IN
relationship with Category
.
First I created one query to return Document
if it have TAG
to Category
and if User
is INTERESTED_IN
this Category
(Note: I don't have multiple relationships between nodes). Also number of connections with Category
is counted so if I have too many Documents
method returns only 10 with most connections.
ANSWER
Answered 2021-Jan-22 at 13:52With these things, it's always good to check what you are generating from the client. To that end you should look at the query.DebugQueryText
property. If you do, you'll see the query you would generate would look like this:
QUESTION
I updated the Neo4JClient to the version 4.x which included refactoring from client.Connect();
to client.ConnectAsync()
. The controller which connects to neo4j is getting instantiated when a request to the api is made, so there is not much time between connecting and using the connection. The async connecting so my guess runs me in the problem, that the client is not connected when I'm already making database requests. I tried to fix this with awaiting the ResultsAsync
which didn't fix the problem. Currently there is no documentation existing since it's outdated. Here is my Code :
ANSWER
Answered 2020-Dec-04 at 12:11In your constructor, you would do:
QUESTION
I cannot figure out what the neo4jclient equivalent is for the following cypher query:
...ANSWER
Answered 2020-May-15 at 11:51The best approach that I can quickly think of is to use Return.As
for any things like this you want to do in Return
, so something like:
QUESTION
I have a basic Neo4j DB and I'm getting my head around getting data from it into C# under .Net Core. I am using the bolt connection on a 4.03 DB. Windows 10. I may have not grasped Graph Databases yet, but I am trying to build a Person object containing Positions which contain Skill and then Ranks
This code returns 6 instances of Person (A slight concern that I have 6 but thats a minor problem)
...ANSWER
Answered 2020-May-03 at 12:32This was failing because of the datetime I was using. The datetime in the database had the following format (it included timezone) "1939-06-23T01:00:00+01:00". Chopping the +01:00 off the end got it working with the Person object with a datetime as
QUESTION
I'm looking how to unwind a list of objects (in memory) into Neo4j 4.0. Below is what I had previously using Neo4jClient nuget but I'm having to switch to Neo4j.Driver nuget instead.
Neo4jClient (old)
...ANSWER
Answered 2020-Apr-18 at 08:56Sadly the Neo4j Driver is pretty bare-bones - you need to build the Cypher query by hand, referring to parameters where required then pass those parameters into the query.
QUESTION
I have been connecting .Net Core code from within a Docker container to a Neo4j DB. I tried using Neo4jClient first but ran into issues with the http connection out of the docker container. I then tried the Neo4j.Driver directly with the bolt connection using host.docker.internal to alias localhost. This worked fine. I swapped back to Neo4jClient with bolt (again from within Docker) but its failing with. Thanks for any help.
...ANSWER
Answered 2020-Apr-16 at 08:44The 4.x
versions of Neo4j require Encryption to be set, Neo4jClient
doesn't actually provide an easy way to do this, so you'd need to pass in an IDriver
instance, like so:
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