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neo4j-driver

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neo4j-driver

The official Neo4j driver for Javascript

  • 5.27.0
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
154K
increased by11.56%
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2
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What is neo4j-driver?

The neo4j-driver npm package is a driver for connecting to and interacting with a Neo4j database from a Node.js application. It provides a set of tools and APIs to perform various operations such as connecting to the database, executing Cypher queries, managing transactions, and handling results.

What are neo4j-driver's main functionalities?

Connecting to Neo4j

This feature allows you to establish a connection to a Neo4j database using the Bolt protocol. You need to provide the database URL and authentication credentials.

const neo4j = require('neo4j-driver');
const driver = neo4j.driver('bolt://localhost:7687', neo4j.auth.basic('username', 'password'));
const session = driver.session();

Executing Cypher Queries

This feature enables you to execute Cypher queries against the connected Neo4j database. The example demonstrates running a simple query to match and return all nodes.

const result = await session.run('MATCH (n) RETURN n');
result.records.forEach(record => {
  console.log(record.get(0));
});

Managing Transactions

This feature allows you to manage transactions, providing a way to commit or rollback operations as needed. The example shows how to create a node within a transaction and handle errors.

const tx = session.beginTransaction();
try {
  await tx.run('CREATE (n:Person {name: $name})', { name: 'Alice' });
  await tx.commit();
} catch (error) {
  await tx.rollback();
  throw error;
}

Handling Results

This feature provides methods to handle and process the results returned from Cypher queries. The example demonstrates accessing and logging the properties of a node from the query result.

const result = await session.run('MATCH (n) RETURN n');
const singleRecord = result.records[0];
const node = singleRecord.get(0);
console.log(node.properties);

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Package last updated on 28 Nov 2024

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