使用 Neo4j 和 JavaScript 构建应用程序

npm i neo4j-driver

var neo4j = require('neo4j-driver');
(async () => {
  // URI examples: 'neo4j://', 'neo4j+s://xxx.databases.neo4j.io'
  const URI = '<database-uri>'
  const USER = '<username>'
  const PASSWORD = '<password>'
  let driver = neo4j.driver(URI, neo4j.auth.basic(USER, PASSWORD))
  const serverInfo = await driver.getServerInfo()
  console.log('Connection established')
  console.log(serverInfo)

  // Use the driver to run queries

  await driver.close()
})();

let { records, summary } = await driver.executeQuery(`
  CREATE (a:Person {name: $name})
  CREATE (b:Person {name: $friendName})
  CREATE (a)-[:KNOWS]->(b)
  `,
  { name: 'Alice', friendName: 'David' },
  { database: '<database-name>' }
)
console.log(
  `Created ${summary.counters.updates().nodesCreated} nodes ` +
  `in ${summary.resultAvailableAfter} ms.`
)

let { records, summary } = await driver.executeQuery(`
  MATCH (p:Person)-[:KNOWS]->(:Person)
  RETURN p.name AS name
  `,
  {},
  { database: '<database-name>' }
)

// Loop through users and do something with them
for(let record of records) {
  console.log(`Person with name: ${record.get('name')}`)
  console.log(`Available properties for this node are: ${record.keys}\n`)
}

// Summary information
console.log(
  `The query \`${summary.query.text}\` ` +
  `returned ${records.length} nodes.\n`
)

const driver = neo4j.driver(URI, neo4j.auth.basic(USER, PASSWORD))
let session = driver.session({ database: '<database-name>' })

// session/driver usage

session.close()
driver.close()