https://github.com/jexp/neo4j-graphviz

minimal javascript library/tool to generate graphviz visualization from a neo4j cypher query
https://github.com/jexp/neo4j-graphviz

Last synced: 11 days ago
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minimal javascript library/tool to generate graphviz visualization from a neo4j cypher query

• Host: GitHub
• URL: https://github.com/jexp/neo4j-graphviz
• Owner: jexp
• License: mit
• Created: 2017-02-26T01:36:59.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2022-05-11T12:36:14.000Z (over 2 years ago)
• Last Synced: 2024-11-02T03:22:49.340Z (18 days ago)
• Language: JavaScript
• Size: 63.5 KB
• Stars: 36
• Watchers: 5
• Forks: 4
• Open Issues: 6
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

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README

        
# neo4j-graphviz

Minimal Javascript library/tool for generating *dot* and graphviz renderings from a Neo4j Cypher query.

Uses these libraries

* neo4j-driver

* graphviz

## Command Linse Usage

### Minimal:

`node render.js password`

Will write a graph.jpg based on `MATCH path = (a)-[r]->(b) RETURN path`

### Syntax

```

cat query.cypher | node render.js password [file.png/svg/jpg] [renderer]

```

### Example:

From the [Oscars Graph](http://gist.asciidoctor.org/?dropbox-14493611/oscars.adoc).

```

echo 'MATCH  path = (n:Nominee {name:"Meryl Streep"})<-[:NOMINATED]-(a:Nomination)-->() RETURN path' | node render.js '****' oscars.svg neato

```

![](https://rawgithub.com/jexp/neo4j-graphviz/master/oscars.svg)

## Programmatic Usage

see also `express-test.js`

```

var ng = require("neo4j-graphviz");

app.get('/', function(req, res){

  var type = "svg";

  ng.renderGraph("bolt://localhost","neo4j", pwd, req.param("query"), "neato", type, function(error,data) {

    if (error) res.status(500).send(error);

    else {

      res.type(type).send(data);

    }

  });

});```

## Heroku deployment

https://elements.heroku.com/buildpacks/weibeld/heroku-buildpack-graphviz

```

heroku apps:create 

heroku buildpacks:add https://github.com/weibeld/heroku-buildpack-graphviz

heroku config:set NEO4J_URL="neo4j+s://demo.neo4jlabs.com" NEO4J_USER=movies NEO4J_PASSWORD=movies NEO4J_DATABASE=movies

heroku config:set GRAPHVIZ=/app/.heroku-buildpack-graphviz/usr/bin

git push heroku master

```