Wrapper for node-neo4j by The Thingdom to be used with Meteor apps
See also Isomorphic Reactive Driver.
meteor add ostrio:neo4jdriver
npm install neo4j
Create file in ./server/lib/Neo4jDriver.js
this.N4JDB = new Meteor.Neo4j(/* http://username:[email protected] */); //From this point N4JDB variable available everywhere in your projectNext, just use it.
var node = N4JDB.createNode({hello: 'world'}); // instantaneous, but...
node.save(function (err, node) { // ...this is what actually persists.
if (err) {
console.error('Error saving new node to database:', err);
} else {
console.log('Node saved to database with id:', node.id);
}
});/*
* Create user node with _id
*/
Accounts.onCreateUser(function(options, user) {
N4JDB.query('CREATE (:User {_id:"' + user._id + '"})', null, function(err, res){
if(error){
//handle error here
}
});
});###
This example in coffee
Here we create some group and set our user as it's owner
Next, we add relation :owns from owner to newly created group in one query
###
groupId = GroupsCollection.insert title: 'Some Group Title', (error) ->
error if error
#handle error here
N4JDB.query 'Match (o:User {_id:"' + Meteor.userId() + '"}) ' +
'CREATE (g:Group {_id:"' + groupId + '", owner: "' + Meteor.userId() + '", active: true}) ' +
'CREATE (o) -[:owns]-> (g)', null, (error, res) ->
error if error
#handle error here###
Register catch all callback
Note - you may register as many callbacks as you need
@param query {string} - Cypher query
@param opts {object} - A map of parameters for the Cypher query
###
N4JDB = new Neo4j()
N4JDB.listen (query, opts) ->
console.log query, opts
For more info see: node-neo4j Code licensed under Apache v. 2.0: node-neo4j License
- Download (or clone) to local dir
- Stop meteor if running
- Run
mrt link-package [*full path to folder with package*]in a project dir - Then run
meteor add ostrio:neo4jdriver - Run
meteorin a project dir - From now any changes in ostrio:neo4jdriver package folder will cause rebuilding of project app
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