Why does Neo4j connection to Gephi error with Windows 10? (apoc.gephi.add)

0
votes

I keep getting the same error when trying to connect Gephi to Neo4j. What am I doing wrong? I tried to reproduce the example from here: https://tbgraph.wordpress.com/2017/04/01/neo4j-to-gephi/

Environment Preparation:

  1. Installed the apoc.gephi.add from GitHub Step
  2. Gephi:Installed add-in for Graph Streaming
  3. Gephi: Master Server started (turns green )

Reproduceable example

in Neo4j:

  1. Type ":play movies" into the cmd line $
  2. click right arrow to load code into cmd line $
  3. Now nodes and relationship types appear in Neo4j

  4. Enter the code below:

    MATCH (p1:Person)-->(:Movie)<--(p2:Person) where id(p1) < id(p2) MERGE (p1)-[r:KNOWS]-(p2) ON CREATE SET r.weight = 1 ON MATCH SET r.weight = r.weight + 1

    MATCH path = (:Person)-[:KNOWS]->(:Person) CALL apoc.gephi.add("http://localhost:7474",'WS1',path,'weight') yield nodes return *

Ports Gephi Add-in turned on

This should connect with Gephi and you should see a graph populate in Gephi. But I got this error:

http://localhost:7474/WS1?operation=updateGraph as json: cannot retry due to server authentication, in streaming mode Error mssg

1
neo4jgephi

1 Answers

0
votes

You have done mistake in the apoc gephi procedure, you are using the Neo4j URL not the gephi one !

In this apoc.gephi.add("http://localhost:7474",'WS1',path,'weight') the url is wrong , it's not http://localhost:7474 (the Neo4j one) but should be the one of Gephi server. Per default it's http://localhost:8080.