CODEWITHSUNDEEP
javahl7-fhirhapi-fhirsmart-on-fhir
Rajesh Rajendran
Rajesh Rajendran

Reputation: 105

Is there any way to fetch the list of resource types available for a patient id from FHIR Server?

I want the fetch the list of resource types available for a patient from the FHIR server. I tried to fetch the List of items from the Patient. But it doesn't contain all the resource types available for that particular patient.

Upvotes: 1

Views: 1789

Answers (4)

Rajesh Rajendran
Rajesh Rajendran

Reputation: 105

Thank you all for posting your answers. I have achieved this by making a batch request like the below,

    Bundle bundle = new Bundle();

    bundle.setType(Bundle.BundleType.TRANSACTION);

    // Adding bundle entries to make the batch request

    // To fetch the resource count for each resource type

    for (String resource : resources) {

        String url = String.format(MyConstants.URLs.FETCH_SUMMARY_COUNT, 
        resource, patientId);

 bundle.addEntry().getRequest().setUrl(url).setMethod(Bundle.HTTPVerb.GET);

    }

    try {

        // Create a client

        IGenericClient client = fhirContext.newRestfulGenericClient(fhirServerUrl);

        BearerTokenAuthInterceptor bearerTokenAuthInterceptor = new BearerTokenAuthInterceptor(accessToken);

        client.registerInterceptor(bearerTokenAuthInterceptor);



        bundle = client.transaction().withBundle(bundle).execute();

        IFhirPath iFhirPath = fhirContext.newFhirPath();

        List<IntegerType> counts = iFhirPath.evaluate(bundle, MyConstants.FHIRPATH.SUMMARY_COUNT_FROM_BUNDLE,

                IntegerType.class);

        ResourceTypesResponse resourceTypesResponse = ResourceParser.getResourceTypes(counts, resources);

        if (resourceTypesResponse == null) {

            throw new PatientNotFoundException("Resource Not Found");

        }

        return resourceTypesResponse;

    } catch (Exception e) {

        if (e.getMessage().equalsIgnoreCase("HTTP 401 Unauthorized")) {

            return getResourceBundleForPatient(patientId, resources);

        } else {

            throw new PatientNotFoundException("Patient Id Not Found");

        }

    }

Upvotes: 0

granadaCoder
granadaCoder

Reputation: 27852

http://hapi.fhir.org/baseR4/metadata

http://wildfhir4.aegis.net/fhir4-0-1/metadata

https://vonk.fire.ly/R4/metadata

I think you're asking this.

If you examine any of the reference implementations above: you'll retrieve the CapabilityStatement.

EVERY FHIR server must supply a CapabilityStatement.

You look at the CapabilityStatement, find the Fhir-Resource ("Patient" here), and then any includes and rev-includes.

                "type": "Patient",

                "searchInclude": [
                    "Patient:general-practitioner",
                    "Patient:link",
                    "Patient:organization"
                ],
                "searchRevInclude": [
                    "Account:patient",
                    "Account:subject",

also see:

https://www.hl7.org/fhir/search.html#include

Upvotes: 1

Jason S.
Jason S.

Reputation: 520

When you say "the list of resource types available for a patient from the FHIR server", I think what you mean is the resource types that can be searched by patient on the FHIR server.

To build such a list, read the FHIR server's CapabilityStatement. Iterate through the CapabilityStatement's resource array, checking each item's searchParam array for an element where name = 'patient' and type = 'reference'. If you find it, add that item's type value (i.e. the resource type) to the list.

Upvotes: 2

Spindoctor
Spindoctor

Reputation: 471

I think what your asking is resources types linked to a Patient. In this case you can do a http://base/fhir/Patient/[id]/$everything

https://hl7.org/fhir/operation-patient-everything.html

Upvotes: 1

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