sparql-on-fhir

SPARQL on FHIR

About the tool

The FHIR specification defines RDF (specifically Turtle) as one of the possible serialization formats for FHIR resources. This means that every FHIR resource or a bundle of FHIR resources can be viewed as an RDF dataset and queried using SPARQL.

I've created this tool to demonstrate how FHIR resources can be queried using SPARQL and in general, experiment with the RDF representation of FHIR resources. You can import your own FHIR resources in the NDJSON format (this overwrites the existing resources) or start with querying the example dataset.

The tool uses the rdflib.js library (published as rdflib on npm) to create a triple store in the browser and run your SPARQL queries against it. The data does not persist between sessions.

Demo

FHIR resources in store

318

Triples in store

22548

SPARQL query

PREFIX fhir: <http://hl7.org/fhir/>

SELECT ?patient ?patientGivenNameValue
WHERE {
  ?patient a fhir:Patient .
  ?patient fhir:name ?patientName .
  ?patientName fhir:given ?patientGivenName .
  ?patientGivenName fhir:v ?patientGivenNameValue .
}1
PREFIX fhir: <http://hl7.org/fhir/>
2

3
SELECT ?patient ?patientGivenNameValue
4
WHERE {
5
  ?patient a fhir:Patient .
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  ?patient fhir:name ?patientName .
7
  ?patientName fhir:given ?patientGivenName .
8
  ?patientGivenName fhir:v ?patientGivenNameValue .
9
}

Click Run query to see results.

Query results

?patient	?patientGivenNameValue
ex:fhir/Patient/example	"Peter"
ex:fhir/Patient/example	"James"
ex:fhir/Patient/example	"Jim"
ex:fhir/Patient/example	"Peter"
ex:fhir/Patient/example	"James"

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