This library was created initialy to be used on https://portal.graphgist.org/ where users are able to run custom cypher queries directly on the browser, can change queries, and interact with the results.
This implementation may work with your project too.
Under the hood it creates a temporary database on a Neo4j instance (v4.0 or higher). To prevent the running out of memory on the database, each temporary database is named with a timestamp to be used in a cleanup operation.
How to use:
import neo4j from "neo4j-driver" import Neo4jTempDb from "@neo4j-labs/temp-dbs" const tempDb = new Neo4jTempDb( 'neo4j://localhost', neo4j.auth.basic('neo4j', 'password') )
Create a temporary database
const databaseName = tempDb.createDatabase()
Run Cyphers on the temp database
const result = neo4jTempDb.runCypherOnDatabase(databaseName, cypherVersion, cypher, params)
result is an object with the following properties:
|json||a JSON valid object containing all nodes and relationships returned by the cypher query|
|visualization||all nodes and relationships on the current database|
|columns||all the keys returned by the query run|
|query||the cypher query sent|
|version||the cypher version selected|
Clean up the database
This is important to free resources on your server since databases don't auto expire:
Clean up databases expired databases
await tempDb.cleanDatabasesOlderThan(60 * 60 * 24) // 24h cleanup interval
Clean up all databases
Run development tests
Make sure you have the right credentials to your Neo4j database:
export CONSOLE_NEO4J_URI=bolt://localhost:7687 export CONSOLE_NEO4J_USER=neo4j export CONSOLE_NEO4J_PASSWORD=123456
And to run tests: