A standard web component to easily deploy a user-friendly SPARQL query editor for one or more endpoints. Built on the popular YASGUI editor, it provides context-aware autocomplete for classes and predicates based on the content of the endpoints.
The editor retrieves metadata about the endpoints by directly querying them, so all that is needed is to generate and upload some metadata to each endpoints, and it works on top of any triplestore without configuration needed. Reducing the need for complex infrastructure, while making your SPARQL endpoints easier to query for users and machines.
Tip
👆️ Try it with SIB endpoints, such as UniProt and Bgee, at sib-swiss.github.io/sparql-editor
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✨ Autocomplete possibilities for properties and classes are automatically pulled from the endpoints based on the VoID description present in the triplestore. The suggested properties are contextually filtered based on the class of the subject at the cursor's position, and are aware of
SERVICEclauses, ensuring relevant autocompletion even in federated queries. Checkout thevoid-generatorproject to automatically generate VoID description for your endpoint.Click here to see the SPARQL query used to retrieve the VoID description.
PREFIX void: <http://rdfs.org/ns/void#> PREFIX void-ext: <http://ldf.fi/void-ext#> SELECT DISTINCT ?subjectClass ?prop ?objectClass ?objectDatatype WHERE { { ?cp void:class ?subjectClass ; void:propertyPartition ?pp . ?pp void:property ?prop . OPTIONAL { { ?pp void:classPartition [ void:class ?objectClass ] . } UNION { ?pp void-ext:datatypePartition [ void-ext:datatype ?objectDatatype ] . } } } UNION { ?linkset void:subjectsTarget ?subjectClass ; void:linkPredicate ?prop ; void:objectsTarget ?objectClass . } }
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📜 Example SPARQL queries defined using the SHACL ontology are automatically pulled from the endpoint. Checkout the
sparql-examplesproject for more details.Click here to see the SPARQL query used to retrieve the example queries.
PREFIX sh: <http://www.w3.org/ns/shacl#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT DISTINCT ?sq ?comment ?query WHERE { ?sq a sh:SPARQLExecutable ; rdfs:comment ?comment ; sh:select|sh:ask|sh:construct|sh:describe ?query . } ORDER BY ?sq
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🏷️ Prefixes are automatically pulled from the endpoint using their definition defined with the SHACL ontology (
sh:prefix/sh:namespace).Click here to see the SPARQL query used to retrieve the prefixes/namespaces.
PREFIX sh: <http://www.w3.org/ns/shacl#> SELECT DISTINCT ?prefix ?namespace WHERE { [] sh:namespace ?namespace ; sh:prefix ?prefix } ORDER BY ?prefix
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Import from a CDN:
<script type="module" src="https://unpkg.com/@sib-swiss/sparql-editor"></script>
Or install with a package manager in your project:
npm install --save @sib-swiss/sparql-editor # or pnpm add @sib-swiss/sparql-editor -
Use the custom element in your HTML/JSX/TSX code:
<sparql-editor endpoint="https://sparql.uniprot.org/sparql/"></sparql-editor>
You can also pass a list of endpoints URLs separated by commas to enable users to choose from different endpoints:
<sparql-editor endpoint="https://sparql.uniprot.org/sparql/,https://www.bgee.org/sparql/"></sparql-editor>
Warning
Metadata are retrieved by a few lightweight queries sent from client-side JavaScript when the editor is initialized, so your SPARQL endpoints should accept CORS (either from *, which is recommended, or just from the URL where the editor is deployed)
You can customize a few optional attributes when calling the custom element:
examples-repo-add-url: the URL to directly add the query to the git repository where the query examples for this endpoint are stored through the GitHub web UI,examples-repository: the URL to the git repository where the query examples for this endpoint are stored (automatically generated fromexamples-repo-add-urlif you provide it),examples-namespace: the namespace used when saving a query as example (defaults to the endpoint URL + /.well-known/sparql-examples/ when not specified),examples-on-main-page: the number of examples displayed on the main page (defaults to 10),add-limit: the number of rows to be added as limit to the query before being sent, if no limit has been defined by the user (default to none)style="--btn-color / --btn-bg-color": buttons color.
<sparql-editor
endpoint="https://www.bgee.org/sparql/,https://sparql.uniprot.org/sparql/"
examples-repo-add-url="https://github.com/sib-swiss/sparql-examples/new/master/examples/Bgee"
examples-repository="https://github.com/sib-swiss/sparql-examples"
examples-namespace="https://sparql.uniprot.org/sparql/.well-known/sparql-examples/"
examples-on-main-page="10"
add-limit="10000"
style="--btn-color: white; --btn-bg-color: #00709b;"
></sparql-editor>No need for a complex project you can integrate SPARQL editor in any HTML page by importing from a CDN!
Create a index.html file with:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>SPARQL editor dev</title>
<meta name="description" content="SPARQL editor demo page" />
<link rel="icon" type="image/png" href="https://upload.wikimedia.org/wikipedia/commons/f/f3/Rdf_logo.svg" />
<!-- Import the module from a CDN -->
<script type="module" src="https://unpkg.com/@sib-swiss/sparql-editor"></script>
</head>
<body>
<div>
<sparql-editor
endpoint="https://www.bgee.org/sparql/"
examples-repo-add-url="https://github.com/sib-swiss/sparql-examples/new/master/examples/Bgee"
examples-on-main-page="10"
style="--btn-color: white; --btn-bg-color: #00709b;"
></sparql-editor>
</div>
</body>
</html>Then just open this HTML page in your favorite browser.
You can also start a basic web server with NodeJS or Python (recommended):
npx http-server
# or
python -m http.serverCheckout CONTRIBUTING.md for more details on how to run this in development and make a contribution.
Thanks to: