Neo4j 2.2.0 came out recently and, of course, we've very excited! One of the biggest changes you should know about if you're trying to use Neo4j.rb with Neo4j 2.2.0 is that authentication is required by default. It's implemented using HTTP Basic Auth and we've updated the latest version of the neo4j-core gem (which the neo4j gem depends on) to support it.

Using sessions

If you're creating Session objects directly from the neo4j-core gem, you just need to add some configuration options:

  session = Neo4j::Session.open(:server_db,
                                'http://localhost:7474',
                                basic_auth: {username: 'neo4j', password: 'reel_secure'})

In Rails

If you're using Rails it's just as easy. You only need to configure it in one of your environment files (such as config/development.rb or config/production.rb) or the config/application.rb file:

  config.neo4j.session_type = :server_db 
  config.neo4j.session_path = 'http://localhost:7474'
  config.neo4j.session_options = { basic_auth: { username: 'foo', password: 'bar'} } 

Disabling authentication

If you're in a hurry or just don't want to bother with authentication in your development or test environments, you can disable configure the dbms.security.auth_enabled variable in conf/neo4j-server.properties:

  dbms.security.auth_enabled=false

If you've installed your Neo4j database via the Neo4j.rb rake tasks, this is located in db/neo4j/development/conf/neo4j-server.properties

Happy Graphing!