Basic Graph App

I developed a criminal-victim application that performs CRUD operations with a simple interface using the Neo4j graph-based database. The backend is implemented in JavaScript, the frontend in HTML and CSS, and database operations are carried out using Cypher.

Prerequisites

Node.js installed Neo4j installed and running CSV file containing the data to be imported Setup Instructions Step 1: Import Data into Neo4j Open the Neo4j Browser and log in to your Neo4j instance. Import the CSV file into Neo4j's import directory. Step 2: Load Data into Neo4j Database Open the Neo4j Browser. Run the following Cypher code to load your data:

cypher

LOAD CSV WITH HEADERS FROM 'file:///your_data.csv' AS row MERGE (c:Criminal {id: row.criminal_id, name: row.criminal_name}) MERGE (v:Victim {id: row.victim_id, name: row.victim_name}) MERGE (c)-[:VICTIMIZED]->(v); Make sure to replace 'file:///your_data.csv' with the actual path of your CSV file in the Neo4j import directory.

Step 3: Install Dependencies

Navigate to the project directory and install the necessary dependencies:

bash

npm install

Step 4: Start the Application

You can start the application using either of the following commands:

bash

node app.js or

bash

nodemon app.js

Step 5: Access the Application

Open your web browser and navigate to http://localhost:3000 to access the application.

Project Structure

app.js: The main entry point of the application.

public/: Contains the frontend files (HTML, CSS, JavaScript).

routes/: Contains the backend route handlers.

models/: Contains the Neo4j models for the application.

views/: Contains the HTML views.

Operations

The application supports the following CRUD operations:

Create: Add new criminals and victims. Read: View existing criminals and victims. Update: Modify details of existing criminals and victims. Delete: Remove criminals and victims from the database. Conclusion You have successfully set up and launched the Basic Graph App. You can now perform CRUD operations on the criminal-victim data using the simple interface provided by the application.