Linked Data Fragments jQuery Widget
This jQuery widget is a browser-based user interface to the Linked Data Fragments client. It allows users to execute SPARQL queries over one or multiple datasets exposed through a Triple Pattern Fragments interface.
Using the code
npm installto fetch dependencies and build the browser version of the client code.
- Place the files from this repository on a local Web server (for instance, by starting a tool such as adsf in the root folder).
index.htmlin the browser through your Web server (typically
- Edit datasources in
settings.jsonand queries in the
queriesfolder, and run
queries-to-jsonto compile both of them in a single JSON file.
./build-minifiedto generate a production version in the
How the browser client works
The original ldf-client library is written for the Node.js environment. The browserify library makes it compatible with browsers.
browser.js makes the Node.js library ldf-client available in global scope as
This script is compiled with its dependencies to
npm run postinstall.
You can use the resulting
ldf-client-browser.js in your browser applications; it is independent of the jQuery UI widget.
(Optional) Running in a Docker container
If you want to rapidly deploy this widget as a microservice, you can build a Docker container as follows:
$ docker build -t ldf-client-widget .
Next, configure your widget by creating a
settings.json file in your working directory based on the example.
Next, create a
queries directory in which you should insert the queries that will be present by default in the widget, as is done here.
After that, you can run your newly created container in which
queries is mounted to the Docker container:
$ docker run -p 8080:8080 -it --rm -v $(pwd)/settings.json:/tmp/settings.json -v $(pwd)/queries:/tmp/queries ldf-client-widget
The Linked Data Fragments jQuery Widget is written by Ruben Verborgh.