NEO4J CRUD OPERATIONS USING NODE

This demo helps to setup connection and perform CRUD (create, read, update and delete) operations between docker image of neo4j and node.

Installation

Step 1: Installing Neo4j Docker Image

Before proceeding towards this step, please ensure that you have docker intalled on your machine. To install docker refer to https://docs.docker.com/install/

OS X & Linux:

    docker run \
    --publish=7474:7474 --publish=7687:7687 \
     --volume=$HOME/neo4j/data:/data \
     neo4j

This command will download the neo4j image and map local ports 7474 adn 7687 to neo4j ports.

To check if installation is correct, then open your browser and go to:

    http://localhost:7474/

This should bring up the neo4j console.

Step 2: Create user and password for neo4j

Within the browser opened in Step 1, follow the onscreen instructions and create a username and password for your use. In my case I kept

username as neo4j

password as neo4j1

Step 3: Clone this project

In a seperate terminal

Make a directory neo4jtest and then run below command

    git clone https://github.com/madanaman/neo4j.git

Step 4: Test connection

In a seperate terminal, run below command

    cd neo4jtest/neo4j
    npm i
    node server.js test

If neo4j is running(Step1) and username and passwords have been kept as mentioned(Step2), then you should see message like below.

    data is  {
  "extensions" : { },
  "node" : "http://localhost:7474/db/data/node",
  "relationship" : "http://localhost:7474/db/data/relationship",
  "node_index" : "http://localhost:7474/db/data/index/node",
  "relationship_index" : "http://localhost:7474/db/data/index/relationship",
  "extensions_info" : "http://localhost:7474/db/data/ext",
  "relationship_types" : "http://localhost:7474/db/data/relationship/types",
  "batch" : "http://localhost:7474/db/data/batch",
  "cypher" : "http://localhost:7474/db/data/cypher",
  "indexes" : "http://localhost:7474/db/data/schema/index",
  "constraints" : "http://localhost:7474/db/data/schema/constraint",
  "transaction" : "http://localhost:7474/db/data/transaction",
  "node_labels" : "http://localhost:7474/db/data/labels",
  "neo4j_version" : "3.3.1"
}

Usage example

Insert Data

    node server.js insert

Fetch Data

    node server.js fetch

Delete Data

    node server.js delete

Meta

Aman Madan – madan.aman@gmail.com/yaushdev@gmail.com