Recommended services

Recommended services easy to set to improve accessibility of your triplestore.

Grlc SPARQL API#

Deploying a serverless API to access and explore your SPARQL endpoint is really easy to do with grlc.io. You just need to define a few SPARQL queries in a GitHub repository, and grlc.io will handle everything else to expose a Swagger API (aka. Open API) to access your knowledge graph.

Enable easy data exploration

🧭 This API will be the entrypoint for people who want to discover your data: they can quickly explore and understand the structure of your knowledge graph through the query you exposed.

To make this example easier to reproduce, we will use the existing grlc.io API deployment defined for the food-claims-kg as example

👩‍💻 Provide the URL of SPARQL endpoint to query in the endpoint.txt file
👨‍💻 Define the SPARQL queries in .rq files at the base of the git repo.
Example
See this example of a .rq file to define a SPARQL query with a parameter (used to filter using regex()).
That's it 🤯 you can go to your API Swagger UI automatically generated and hosted by grlc.io based on the GitHub repository URL: http://grlc.io/api-git/MaastrichtU-IDS/food-claims-kg

Bonus: combine grlc.io with the GraphDB search index query, and you have a Search API for your knowledge graph! 🔎

An active project

The project is still active and reactive, feel free to post an issue if you face any problem.

Into-the-graph web UI#

Into the Graph is a lightweight and fast RDF browser that just need a SPARQL endpoint URL to give a comfortable experience when exploring differents graphs.

Work in progress

Into the Graph is still in development. It is mainly tested for biomedical SPARQL endpoints, such as Bio2RDF

Access into-the-graph

Access into-the-graph at https://maastrichtu-ids.github.io/into-the-graph

This RDF linked data browser features:

A web-based UI to browse SPARQL endpoints content easily. Stateful URL to resolve a specific URI in a specific SPARQL endpoint can be defined using the uri and endpoint parameters. Tested with RDF4J (Ontotext GraphDB) and Virtuoso SPARQL endpoints.
Visualize the data as a datatable, or a nodes-edges network
Easily search for concepts in the triplestore. Possibility to change the SPARQL query to define the custom query to use the Search index of different triplestores in settings (Ontotext GraphDB and Virtuoso triplestores documented).
Insights about the content of the triplestore and its different graphs, using precomputed HCLS descriptives metadata.