MacBook setup guide for working with Neo4j graph database

Introduction

When you want to try out Neo4j, we need to perform steps which includes

• • Installation

  • Configuration (password)

  • Cypher language hands-on

Below document addresses them

Steps for installation

Visit neo4j.com and download community edition

Try out step-by step guide for pre-existing graph. This graph will help to understand

• • Look and feel

  • Cypher graph DB query language used by Ne4j

API access Setup

Neo4j logs are at $NEO4J_HOME/logs/neo4j.log . From the Neo4j Desktop project, click on 'open terminal' option.

Below is the example log.

Neo4j log which tells that it is listening on 7687 port

bash-3.2$ tail -10 /Users/deepak/Library/Application\ Support/Neo4j\ Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/logs/neo4j.log

Starting Neo4j.

2020-03-31 10:28:49.412+0000 INFO ======== Neo4j 4.0.1 ========

2020-03-31 10:28:49.436+0000 INFO Starting...

2020-03-31 10:28:58.513+0000 INFO Sending metrics to CSV file at /Users/deepak/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/metrics

2020-03-31 10:28:58.571+0000 INFO Bolt enabled on localhost:7687.

2020-03-31 10:28:58.572+0000 INFO Started.

2020-03-31 10:28:59.329+0000 INFO Server thread metrics have been registered successfully

2020-03-31 10:29:00.952+0000 INFO Remote interface available at http://localhost:7474/

2020-03-31 10:29:14.598+0000 INFO Neo4j Server shutdown initiated by request

2020-03-31 10:29:14.767+0000 INFO Stopping...

bash-3.2$

Start the DBMS

Here Movie Database server is running as below screenshot

Below is the log for the same

Log for server start

bash-3.2$ tail -f /Users/deepak/Library/Application\ Support/Neo4j\ Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/logs/neo4j.log

certificates: /Users/deepak/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/certificates

run: /Users/deepak/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/run

Starting Neo4j.

2020-03-31 10:44:24.616+0000 INFO ======== Neo4j 4.0.1 ========

2020-03-31 10:44:24.640+0000 INFO Starting...

2020-03-31 10:44:35.236+0000 INFO Sending metrics to CSV file at /Users/deepak/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-d75396d4-a9d9-49a8-bde9-2f90a850ff86/installation-4.0.1/metrics

2020-03-31 10:44:35.323+0000 INFO Bolt enabled on localhost:7687.

2020-03-31 10:44:35.324+0000 INFO Started.

2020-03-31 10:44:36.360+0000 INFO Server thread metrics have been registered successfully

2020-03-31 10:44:38.597+0000 INFO Remote interface available at http://localhost:7474/

Access http://localhost:7474

You will be able to access http://localhost:7474 as mentioned in above log. Below is the screenshot for the same

Above screenshot tells that API access to Database server is ready.

Configuration

Configuration file is at conf/neo4j.conf . Please refer https://neo4j.com/docs/operations-manual/current/configuration/connectors/ for customisation of the config. An example customisation can be change of listen port.

Set initial password

Default user is neo4j. Please set the password using neo4j terminal as shown in below screenshoot

Cypher query understanding

Please refer here for this

Reference

https://www.youtube.com/watch?v=8yWhuUnPapw

https://neo4j.com/download-thanks-desktop/?edition=desktop&flavour=osx&release=1.2.5&offline=false

https://stackoverflow.com/questions/29487042/failed-connect-to-localhost7474-connection-refused-where-is-the-neo4j-server

https://neo4j.com/docs/operations-manual/current/configuration/set-initial-password/

https://neo4j.com/docs/cypher-refcard/current/

https://py2neo.org/v4/database.html