Ormneo NPM | npm.io

ORMNeo

Abstract some trivial operations on neo4j driver for nodejs and make the use simpler. That's why we created ORMNeo.

Instalation

 npm install ormneo

Usage

Connecting to neo4j database

const ormneo = require('ormneo');
ormneo.Connection.connect('neo4j', 'databasepass', 'localhost');

ORMNeo connects using the neo4j bolt protocol.

Create node example

  const ORMNeoNode = require('ormneo').ORMNeoNode;
  
  ORMNeoNode.create({ name: 'name', tes: 3 }, 'test').then((node) => {
       //Created returned object => {id: 1, name: 'name', tes: 3}
  }).catch((error) => {
       //Handle error
  });

Find Nodes

  const ormneo = require('ormneo');
  const ORMNeoNode = ormneo.ORMNeoNode;
  const ORMNeoQuery = ormneo.ORMNeoQuery;
  const ORMNeoWhere = ormneo.ORMNeoWhere;
  
  let where = new ORMNeoWhere('tes', {$eq: 3});
  let query = ORMNeoQuery.query('test', where);
  
  ORMNeoNode.execute(query).then((nodes) => {
      //Found nodes.
  }).catch((error) => {
      //Handle error.
  });

Create relations

  const ORMNeoRelation = require('ormneo').ORMNeoRelation;
  ORMNeoRelation.relate(node1.id, 'relatedto', node2.id, {property: 'a'}).then((rels) => {
        // Created relation node {id: 2, type: 'relatedto', property: 'a'}
  }).catch((error) => {
        //Handle error
  });

Find Relations

  conts ormneo = require('ormneo');
  const ORMNeoRelation = ormneo.ORMNeoRelation;
  const ORMNeoWhere = ormneo.ORMNeoWhere;

  ORMNeoRelation.find(node1.id, node2.id, 'relatedto', new ORMNeoWhere('property', {$eq: 'c'})).then((nodes) => {
        //Found relation nodes.
  }).catch((error) => {
        //Handle error.
  });

Executing Cypher

You can executing cypher using the direct Neo4j Driver session object. Or you can use ORMNeoCypher.

  const ormneo = require('ormneo');
  const ORMNeoCypher = ormneo.ORMNeoCypher;

  ORMNeoCypher.execute(cypher).then((result) => {
     console.log(result);
  }).catch((error) => {
     reject(error);
  });

Creating and droping indexes

You can create and drop indexes in properties.

  const ormneo = require('ormneo');
  const ORMNeoIndex = ormneo.ORMNeoIndex;
  //Creating
  ORMNeoIndex.create('label', ['property']).then((result) => {
     //Handle creation
  });
  //Droping
  ORMNeoIndex.drop('label', ['property']).then((result) => {
     //Handle drop
  });