Graph Explorer (containerized)

A lightweight Dockerized web application for exploring RDF graphs using Graph Explorer. This project provides a Fastify-based server with Handlebars templating and static asset serving, ready to connect to any SPARQL endpoint.

Features

• Visualize and explore RDF graphs interactively
• Connects to any SPARQL endpoint (default: DBpedia)
• Multi-language support
• Easily configurable via environment variables
• Docker-ready for easy deployment

Quick Start

Run with Docker

docker build -t docker-graph-explorer .
docker run -it --rm -p 3000:3000 docker-graph-explorer

Then open http://localhost:3000 in your browser.

Run Locally (Node.js)

1. Install dependencies:

   npm ci

2. Start the server:

   npm run start

3. Visit http://localhost:3000

Configuration

You can configure the application using environment variables:

Variable	Description	Default
PORT	Port to run the server on	3000
HOST	Host to bind the server	0.0.0.0
BASE_PATH	Base path for all routes	/
SPARQL_ENDPOINT	URL of the SPARQL endpoint	https://dbpedia.org/sparql
ACCEPT_BLANK_NODES	Accept blank nodes (true/false)	false
DATA_LABEL_PROPERTY	Property for data labels	rdfs:label
SCHEMA_LABEL_PROPERTY	Property for schema labels	rdfs:label
LANGUAGE	Default language code	en
LANGUAGES	JSON array of language options	See below

Example for LANGUAGES:

[
  { "code": "en", "label": "English" },
  { "code": "de", "label": "German" },
  { "code": "fr", "label": "French" }
]

Health Check

A health check endpoint is available at:

GET /healthz

Returns OK if the server is running.