Grails 2.0, Heroku and Neo4j addon

This post will help you get started with Grails 2.0 on Heroku with the Neo4j addon.
This largely follows the guide at http://devcenter.heroku.com/articles/grails
Note: This does not use the Grails Neo4j plugin (http://grails.org/plugin/neo4j), since I couldn't get it working with Grails 2.0 (Will post an update as and when I can)
(Update: here's the one with the neo4j plugin http://thought-bytes.blogspot.in/2012/03/getting-started-with-grails-neo4j.html)

Create the grails app

>grails create-app heroku-neo4j
>cd heroku-neo4j

Delete the DataSource.groovy

>del grails-app\conf\DataSource.groovy

Check into Git
Create a .gitignore file for ignored files and check into git

*.iws
*Db.properties
*Db.script
.settings
.classpath
.project
eclipse
stacktrace.log
target
/plugins
/web-app/plugins
/web-app/WEB-INF/classes
web-app/WEB-INF/tld/c.tld
web-app/WEB-INF/tld/fmt.tld

>git init
>git add .
>git commit -m init

Create a Heroku app

>heroku create --stack cedar

...and deploy

>git push heroku master

Check it out in the browser

>heroku open

Add the Neo4J addon

>heroku addons:add neo4j:test

Install the Grails Rest plugin

>grails install-plugin rest

Now you can access the Neo4J datastore on Heroku via its REST interface. For example, to create new node from a controller,

import static groovyx.net.http.ContentType.JSON
    withRest(id: "neo4j", uri: "<REST-URL>") {
        auth.basic '<login> ', '<password> '
        def response = post(contentType:JSON, requestContentType:JSON, body: ['name': 'Artichoke'] )
    }
    render response.status
    render response.data

Replace <REST-URL> , <login>  and <password>  with your Neo4J instance's settings.

-Aldrin