JavaScript

npm install neo4j-driver

yarn add neo4j-driver

(async() => {
 const neo4j = require('neo4j-driver')

 const uri = 'neo4j+s://<Bolt url for Neo4j Aura instance>';
 const user = '<Username for Neo4j Aura instance>';
 const password = '<Password for Neo4j Aura instance>';

 const driver = neo4j.driver(uri, neo4j.auth.basic(user, password))
 const session = driver.session()

 const person1Name = 'Alice'
 const person2Name = 'David'

 try {
   // To learn more about the Cypher syntax, see https://neo4j.com/docs/cypher-manual/current/
   // The Reference Card is also a good resource for keywords https://neo4j.com/docs/cypher-refcard/current/
   const writeQuery = `MERGE (p1:Person { name: $person1Name })
                       MERGE (p2:Person { name: $person2Name })
                       MERGE (p1)-[:KNOWS]->(p2)
                       RETURN p1, p2`

   // Write transactions allow the driver to handle retries and transient errors
   const writeResult = await session.writeTransaction(tx =>
     tx.run(writeQuery, { person1Name, person2Name })
   )
   writeResult.records.forEach(record => {
     const person1Node = record.get('p1')
     const person2Node = record.get('p2')
     console.log(
       `Created friendship between: ${person1Node.properties.name}, ${person2Node.properties.name}`
     )
   })

   const readQuery = `MATCH (p:Person)
                      WHERE p.name = $personName
                      RETURN p.name AS name`
   const readResult = await session.readTransaction(tx =>
     tx.run(readQuery, { personName: person1Name })
   )
   readResult.records.forEach(record => {
     console.log(`Found person: ${record.get('name')}`)
   })
 } catch (error) {
   console.error('Something went wrong: ', error)
 } finally {
   await session.close()
 }

 // Don't forget to close the driver connection when you're finished with it
 await driver.close()
})();