OntoPad

OntoPad is a simple editor for RDF data, e.g. Resources, Classes, and Properties. On top of the simple RDF layer it provides ways to visually interact with SHACL shapes.

OntoPad is designed to run in you web browser (with JavaScript support) and to be connected to a SPARQL Endpoint. To be able to share the data you create it works best with the Quit Store (actually currently only supported SPARQL Endpoint cf. #18).

To build the code and get it running in your development environment you need a recent version of node (node.js) and npm (https://nodejs.org/). You can also get it running in a docker environment with our docker image aksw/ontopad.

Project setup

npm install

Compiles and hot-reloads for development

npm run serve

Now the OntoPad should be locally available at http://localhost:8080/ or some other port, if port 8080 is used already.

Compiles and minifies for production

npm run build

This will set APP_CONFIG to null. To set APP_CONFIG now the configuration can be injected. If APP_CONFIG remains null OntoPad will fail to load, this might change in the future (#19).

Inject configuration

You can adjust src/config/config.json or set the following environment variables

• QUIT_URL the URL of a running Quit Store
• SPARQL_QUERY the URL of a SPARQL Query Endpoint (currently only Quit Store cf. #18)
• SPARQL_UPDATE the URL of a SPARQL Update Endpoint (currently only Quit Store cf. #18)
• PRESELECTED_GRAPH_IRI the IRI of the RDF Graph to select per default
• PRESELECTED_RESOURCE_IRI the IRI of the RDF Resource to select per default

Now run the following to inject the configuration:

node docker-inject-config.js

Compile and build for serving locally

NODE_ENV=dev npm run build

(NODE_ENV just must not be production.) This includes the default configuration from src/config/config.json to set APP_CONFIG. This configuration expects the SPARQL-Endpoint to be a Quit Store running at http://localhost:5000.

The result can be served with a local HTTP server

cd dist
python3 -m http.server 8080

Run your tests

npm run test

Lints and fixes files

npm run lint

Customize configuration

See Configuration Reference.