Hapi FHIR - Appointment with patientId and list of service category name

Question

I am new to HAPI FHIR api, But I am trying to get Appointment resources for a patientID with service category and service type code.

I can find appointments for patient with withIDAndCompartment but not sure how to add the search criteria.

Bundle bundle = fhirClient.search().forResource(Patient.class).withIdAndCompartment(patientId, ResourceType.Appointment.name()).returnBundle(Bunle.class).execute();

List<Appointment> appointments = BundleUtil.toListOfResourcesOfType(fhirClient.getFhirContext(), bundle, Appointment.class);

will return patientId's appointments.

I am not sure how to use TokenClientParam, Appointment.SERVICE_CATEGORY or Appointment.SERVICE_TYPE, to search the appointment type with the input service category or service type code.

Any help will be appreciated

Answer 1

The fields you want to search have all been added to the Search parameter by HAPI FHIR, you can refer to my code below

    public List<Appointment> findByPatientIdAndServiceTypeAndServiceCategory(
            final String patientId,
            final String serviceType,
            final String serviceCategory,
            final int offset,
            final int limit,
            final Collection<Include> includes) {
        final IQuery<?> theQuery = fhirClient.search().forResource(Appointment.class)
            .totalMode(SearchTotalModeEnum.ACCURATE)
            .offset(offset)
            .count(limit);

        if (StringUtils.isNotBlank(patientId)) {
            theQuery.and(Appointment.PATIENT.hasId(patientId));
        }

        if (StringUtils.isNotBlank(serviceType)) {
            theQuery.and(Appointment.SERVICE_TYPE.exactly().code(serviceType));
        }

        if (StringUtils.isNotBlank(serviceCategory)) {
            theQuery.and(Appointment.SERVICE_CATEGORY.exactly().code(serviceCategory));
        }

        CollectionUtils.emptyIfNull(includes).forEach(theQuery::include);

        theQuery.returnBundle(Bundle.class).execute();
        Bundle result = theQuery.returnBundle(Bundle.class).execute();

        if (result.getEntry().isEmpty()) {
            return Collections.emptyList();
        }

        return result.getEntry()
            .stream()
            .filter(entryComponent -> entryComponent.getResource() instanceof Appointment)
            .map(entry -> (Appointment) entry.getResource())
            .collect(Collectors.toList());
    }