Creating and managing FHIR resources

This page explains how to create, update, patch, view, list, retrieve, and delete FHIR resources.

A FHIR resource can contain data about a patient, a device, an observation, and more. For a full list of FHIR resources, see the FHIR Resource Index (DSTU2, STU3, or R4).

The curl and PowerShell samples on this page work with an R4 FHIR store, and are not guaranteed to work if you're using a DSTU2 or STU3 FHIR store. If you're using a DSTU2 or STU3 FHIR store, see the official FHIR documentation for information on how to convert the samples to the FHIR version you're using.

The Go, Java, Node.js, and Python samples work with an STU3 FHIR store.

Creating a FHIR resource

Before you can create FHIR resources, you need to create a FHIR store.

The curl, PowerShell, and Python samples show how to create the following FHIR resources:

  1. A Patient (DSTU2, STU3, and R4) resource
  2. An Encounter (DSTU2, STU3, and R4) resource for the Patient
  3. An Observation (DSTU2, STU3, and R4) resource for the Encounter

The samples for all other languages show how to create a generic FHIR resource.

For more information, see projects.locations.datasets.fhirStores.fhir.create.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

REST

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID

Request JSON body: 

{
  "name": [
    {
      "use": "official",
      "family": "Smith",
      "given": [
        "Darcy"
      ]
    }
  ],
  "gender": "female",
  "birthDate": "1970-01-01",
  "resourceType": "Patient"
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "name": [
    {
      "use": "official",
      "family": "Smith",
      "given": [
        "Darcy"
      ]
    }
  ],
  "gender": "female",
  "birthDate": "1970-01-01",
  "resourceType": "Patient"
}
EOF

Then execute the following command to send your REST request: 

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/fhir+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "name": [
    {
      "use": "official",
      "family": "Smith",
      "given": [
        "Darcy"
      ]
    }
  ],
  "gender": "female",
  "birthDate": "1970-01-01",
  "resourceType": "Patient"
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/fhir+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

Go

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// createFHIRResource creates an FHIR resource.
func createFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	payload := map[string]interface{}{
		"resourceType": resourceType,
		"language":     "FR",
	}
	jsonPayload, err := json.Marshal(payload)
	if err != nil {
		return fmt.Errorf("json.Encode: %w", err)
	}

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s", projectID, location, datasetID, fhirStoreID)

	call := fhirService.Create(parent, resourceType, bytes.NewReader(jsonPayload))
	call.Header().Set("Content-Type", "application/fhir+json;charset=utf-8")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("Create: %w", err)
	}
	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("Create: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceCreate {
  private static final String FHIR_NAME = "projects/%s/locations/%s/datasets/%s/fhirStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceCreate(String fhirStoreName, String resourceType)
      throws IOException, URISyntaxException {
    // String fhirStoreName =
    //    String.format(
    //        FHIR_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-fhir-id");
    // String resourceType = "Patient";

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();
    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/fhir/%s", client.getRootUrl(), fhirStoreName, resourceType);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());
    StringEntity requestEntity =
        new StringEntity("{\"resourceType\": \"" + resourceType + "\", \"language\": \"en\"}");

    HttpUriRequest request =
        RequestBuilder.post()
            .setUri(uriBuilder.build())
            .setEntity(requestEntity)
            .addHeader("Content-Type", "application/fhir+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_CREATED) {
      System.err.print(
          String.format(
              "Exception creating FHIR resource: %s\n", response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.print("FHIR resource created: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
  headers: {'Content-Type': 'application/fhir+json'},
});

async function createFhirResource() {
  // Replace the following body with the data for the resource you want to
  // create.
  const body = {
    name: [{use: 'official', family: 'Smith', given: ['Darcy']}],
    gender: 'female',
    birthDate: '1970-01-01',
    resourceType: 'Patient',
  };

  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}`;

  const request = {parent, type: resourceType, requestBody: body};
  const resource =
    await healthcare.projects.locations.datasets.fhirStores.fhir.create(
      request
    );
  console.log(`Created FHIR resource with ID ${resource.data.id}`);
  console.log(resource.data);
}

createFhirResource();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def create_patient(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
) -> Dict[str, Any]:
    """Creates a new Patient resource in a FHIR store.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#create
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store that holds the Patient resource.

    Returns:
      A dict representing the created Patient resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_store_name = f"{fhir_store_parent}/fhirStores/{fhir_store_id}"

    patient_body = {
        "name": [{"use": "official", "family": "Smith", "given": ["Darcy"]}],
        "gender": "female",
        "birthDate": "1970-01-01",
        "resourceType": "Patient",
    }

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .create(parent=fhir_store_name, type="Patient", body=patient_body)
    )
    # Sets required application/fhir+json header on the googleapiclient.http.HttpRequest.
    request.headers["content-type"] = "application/fhir+json;charset=utf-8"
    response = request.execute()

    print(f"Created Patient resource with ID {response['id']}")
    return response

After creating the Patient resource, create an Encounter resource to describe an interaction between the patient and a practitioner.

In the PATIENT_ID field, substitute the ID from the response returned by the server when you created the Patient resource.

The following curl and PowerShell samples work with R4 FHIR stores. The Python sample works with STU3 FHIR stores.

REST

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • PATIENT_ID: the response returned by the server when you created the Patient resource

Request JSON body: 

{
  "status": "finished",
  "class": {
    "system": "http://hl7.org/fhir/v3/ActCode",
    "code": "IMP",
    "display": "inpatient encounter"
  },
  "reasonCode": [
    {
      "text": "The patient had an abnormal heart rate. She was concerned about this."
    }
  ],
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "resourceType": "Encounter"
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "status": "finished",
  "class": {
    "system": "http://hl7.org/fhir/v3/ActCode",
    "code": "IMP",
    "display": "inpatient encounter"
  },
  "reasonCode": [
    {
      "text": "The patient had an abnormal heart rate. She was concerned about this."
    }
  ],
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "resourceType": "Encounter"
}
EOF

Then execute the following command to send your REST request: 

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/fhir+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Encounter"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "status": "finished",
  "class": {
    "system": "http://hl7.org/fhir/v3/ActCode",
    "code": "IMP",
    "display": "inpatient encounter"
  },
  "reasonCode": [
    {
      "text": "The patient had an abnormal heart rate. She was concerned about this."
    }
  ],
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "resourceType": "Encounter"
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/fhir+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Encounter" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

Python

Before trying this sample, follow the Python setup instructions in the Cloud Healthcare API quickstart using client libraries. For more information, see the Cloud Healthcare API Python API reference documentation.

To authenticate to Cloud Healthcare API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402

def create_encounter(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    patient_id: str,
) -> Dict[str, Any]:
    """Creates a new Encounter resource in a FHIR store that references a Patient resource.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#create
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      patient_id: The "logical id" of the referenced Patient resource. The ID is
        assigned by the server.

    Returns:
      A dict representing the created Encounter resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # patient_id = 'b682d-0e-4843-a4a9-78c9ac64'  # replace with the associated Patient resource's ID
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_store_name = f"{fhir_store_parent}/fhirStores/{fhir_store_id}"

    encounter_body = {
        "status": "finished",
        "class": {
            "system": "http://hl7.org/fhir/v3/ActCode",
            "code": "IMP",
            "display": "inpatient encounter",
        },
        "reason": [
            {
                "text": (
                    "The patient had an abnormal heart rate. She was"
                    " concerned about this."
                )
            }
        ],
        "subject": {"reference": f"Patient/{patient_id}"},
        "resourceType": "Encounter",
    }

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .create(parent=fhir_store_name, type="Encounter", body=encounter_body)
    )
    # Sets required application/fhir+json header on the googleapiclient.http.HttpRequest.
    request.headers["content-type"] = "application/fhir+json;charset=utf-8"
    response = request.execute()
    print(f"Created Encounter resource with ID {response['id']}")

    return response

After creating the Encounter resource, create an Observation resource associated with the Encounter resource. The Observation resource provides a measurement of the patient's heart rate in beats per minute (BPM) (80 in bpm).

The following curl and PowerShell samples work with R4 FHIR stores. The Python sample works with STU3 FHIR stores.

REST

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • PATIENT_ID: the ID in the response returned by the server when you created the Patient resource
  • ENCOUNTER_ID: the ID in the response returned by the server when you created the Encounter resource

Request JSON body: 

{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": 80,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": 80,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
EOF

Then execute the following command to send your REST request: 

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/fhir+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": 80,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/fhir+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

Python

Before trying this sample, follow the Python setup instructions in the Cloud Healthcare API quickstart using client libraries. For more information, see the Cloud Healthcare API Python API reference documentation.

To authenticate to Cloud Healthcare API, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402

def create_observation(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    patient_id: str,
    encounter_id: str,
) -> Dict[str, Any]:
    """Creates a new Observation resource in a FHIR store that references an Encounter and Patient resource.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#create
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      patient_id: The "logical id" of the referenced Patient resource. The ID is
        assigned by the server.
      encounter_id: The "logical id" of the referenced Encounter resource. The ID
        is assigned by the server.

    Returns:
      A dict representing the created Observation resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # patient_id = 'b682d-0e-4843-a4a9-78c9ac64'  # replace with the associated Patient resource's ID
    # encounter_id = 'a7602f-ffba-470a-a5c1-103f993c6  # replace with the associated Encounter resource's ID
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_observation_path = (
        f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/Observation"
    )

    observation_body = {
        "resourceType": "Observation",
        "code": {
            "coding": [
                {
                    "system": "http://loinc.org",
                    "code": "8867-4",
                    "display": "Heart rate",
                }
            ]
        },
        "status": "final",
        "subject": {"reference": f"Patient/{patient_id}"},
        "effectiveDateTime": "2019-01-01T00:00:00+00:00",
        "valueQuantity": {"value": 80, "unit": "bpm"},
        "context": {"reference": f"Encounter/{encounter_id}"},
    }

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .create(
            parent=fhir_observation_path,
            type="Observation",
            body=observation_body,
        )
    )
    # Sets required application/fhir+json header on the googleapiclient.http.HttpRequest.
    request.headers["content-type"] = "application/fhir+json;charset=utf-8"
    response = request.execute()
    print(f"Created Observation resource with ID {response['id']}")

    return response

Conditionally create a FHIR resource

The following curl sample shows how to use the projects.locations.datasets.fhirStores.fhir.create method to conditionally create a FHIR resource. The method implements the FHIR conditional create interaction (DSTU2, STU3, R4).

You can use conditional create to avoid creating duplicate FHIR resources. For example, each Patient resource in a FHIR server typically has a unique identifier, such as a medical record number (MRN). To create a new Patient resource and ensure no Patient resource with the same MRN exists, conditionally create the new resource using a search query. The Cloud Healthcare API creates the new resource only if there are no matches for the search query.

The server's response depends on how many resources matched the search query:

Matches HTTP response code Behavior
Zero 201 CREATED Creates the new resource.
One 200 OK Doesn't create a new resource.
More than one 412 Precondition Failed Doesn't create a new resource and returns a "search criteria are not selective enough" error.

To use the conditional create interaction instead of the create interaction, specify an If-None-Exist HTTP header containing a FHIR search query in your request:

If-None-Exist: FHIR_SEARCH_QUERY

In the Cloud Healthcare API v1, conditional operations exclusively use the identifier search parameter, if it exists for the FHIR resource type, to determine which FHIR resources match a conditional search query.

REST

The following sample shows how to create an Observation resource using an If-None-Exist: identifier=my-code-system|ABC-12345 HTTP header. The Cloud Healthcare API creates the resource if and only if no existing Observation resource matches the query identifier=my-code-system|ABC-12345.

curl -X POST \
  -H "Authorization: Bearer $(gcloud auth print-access-token)" \
  -H "Content-Type: application/fhir+json" \
  -H "If-None-Exist: identifier=my-code-system|ABC-12345" \
  -d @request.json \
  "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation"

The following sample output intentionally shows a failed request. To view the response from a successful request, see Creating a FHIR resource.

If multiple Observation resources match the query, the Cloud Healthcare API returns the following response, and the conditional create request fails:

{
  "issue": [
    {
      "code": "conflict",
      "details": {
        "text": "ambiguous_query"
      },
      "diagnostics": "search criteria are not selective enough",
      "severity": "error"
    }
  ],
  "resourceType": "OperationOutcome"
}

Updating a FHIR resource

The following samples show how to use the projects.locations.datasets.fhirStores.fhir.update method to update a FHIR resource. The method implements the FHIR standard update interaction (DSTU2, STU3, and R4).

When you update a resource, you update the entire contents of the resource. This is in contrast to patching a resource, which updates only part of a resource.

If the FHIR store has enableUpdateCreate set, the request is treated as an upsert (update or insert) that updates the resource if it exists or inserts it using the ID specified the request if it does not exist.

The request body must contain a JSON-encoded FHIR resource and the request headers must contain Content-Type: application/fhir+json. The resource must contain an id element having an identical value to the ID in the REST path of the request.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

REST

The following samples show how to update the beats per minute (BPM) in an Observation resource.

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • OBSERVATION_ID: the Observation resource ID
  • PATIENT_ID: the Patient resource ID
  • ENCOUNTER_ID: the Encounter resource ID
  • BPM_VALUE: the beats per minute (BPM) value in the updated Observation resource

Request JSON body: 

{
  "resourceType": "Observation",
  "id": "OBSERVATION_ID",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "resourceType": "Observation",
  "id": "OBSERVATION_ID",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
EOF

Then execute the following command to send your REST request: 

curl -X PUT \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json; charset=utf-8" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "resourceType": "Observation",
  "id": "OBSERVATION_ID",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method PUT `
    -Headers $headers `
    -ContentType: "application/json; charset=utf-8" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID" | Select-Object -Expand Content

APIs Explorer

Copy the request body and open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Paste the request body in this tool, complete any other required fields, and click Execute.

You should receive a JSON response similar to the following:

Go

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// updateFHIRResource updates an FHIR resource to be active or not.
func updateFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string, active bool) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	// The following payload works with a Patient resource and is not
	// intended to work with other types of FHIR resources. If necessary,
	// supply a new payload with data that corresponds to the FHIR resource
	// you are updating.
	payload := map[string]interface{}{
		"resourceType": resourceType,
		"id":           fhirResourceID,
		"active":       active,
	}
	jsonPayload, err := json.Marshal(payload)
	if err != nil {
		return fmt.Errorf("json.Encode: %w", err)
	}

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	call := fhirService.Update(name, bytes.NewReader(jsonPayload))
	call.Header().Set("Content-Type", "application/fhir+json;charset=utf-8")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("Update: %w", err)
	}
	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("Update: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
  headers: {'Content-Type': 'application/fhir+json'},
});

const updateFhirResource = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '16e8a860-33b3-49be-9b03-de979feed14a';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}`;
  // The following body works with a Patient resource and is not intended
  // to work with other types of FHIR resources. If necessary, supply a new
  // body with data that corresponds to the FHIR resource you are updating.
  const body = {resourceType: resourceType, id: resourceId, active: true};
  const request = {name, requestBody: body};

  const resource =
    await healthcare.projects.locations.datasets.fhirStores.fhir.update(
      request
    );
  console.log(`Updated ${resourceType} resource:\n`, resource.data);
};

updateFhirResource();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def update_resource(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> Dict[str, Any]:
    """Updates the entire contents of a FHIR resource.

    Creates a new current version if the resource already exists, or creates
    a new resource with an initial version if no resource already exists with
    the provided ID.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#update
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of the FHIR resource.
      resource_id: The "logical id" of the resource. The ID is assigned by the
        server.

    Returns:
      A dict representing the updated FHIR resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    # The following sample body works with a Patient resource and isn't guaranteed
    # to work with other types of FHIR resources. If necessary,
    # supply a new body with data that corresponds to the resource you
    # are updating.
    patient_body = {
        "resourceType": resource_type,
        "active": True,
        "id": resource_id,
    }

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .update(name=fhir_resource_path, body=patient_body)
    )
    # Sets required application/fhir+json header on the googleapiclient.http.HttpRequest.
    request.headers["content-type"] = "application/fhir+json;charset=utf-8"
    response = request.execute()

    print(
        f"Updated {resource_type} resource with ID {resource_id}:\n"
        f" {json.dumps(response, indent=2)}"
    )

    return response

Conditionally updating a FHIR resource

The following samples show how to call the projects.locations.datasets.fhirStores.fhir.conditionalUpdate method to update a FHIR resource that matches a search query, rather than identifying the resource by its ID. The method implements the FHIR standard conditional update interaction (DSTU2, STU3, and R4).

A conditional update can only be applied to one FHIR resource at a time.

The response returned from the server depends on how many matches occur based on the search criteria:

  • One match: The resource is successfully updated or an error is returned.
  • More than one match: The request returns a 412 Precondition Failed error.
  • Zero matches with an id: If the search criteria identify zero matches, the supplied request body contains an id, and the FHIR store has enableUpdateCreate set to true, the FHIR resource is created with the id in the request body.
  • Zero matches without an id: If the search criteria identify zero matches and the supplied request body doesn't contain an id, the FHIR resource is created with a server-assigned ID as if the resource was created using projects.locations.datasets.fhirStores.fhir.create.

The request body must contain a JSON-encoded FHIR resource and the request headers must contain Content-Type: application/fhir+json.

In the Cloud Healthcare API v1, conditional operations exclusively use the identifier search parameter, if it exists for the FHIR resource type, to determine which FHIR resources match a conditional search query.

REST

The following sample shows how to send a PUT request using curl and PowerShell to edit an Observation resource using the Observation's identifier (ABC-12345 in my-code-system). The Observation provides a measurement of a patient's heartbeats per minute (BPM).

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • PATIENT_ID: the Patient resource ID
  • ENCOUNTER_ID: the Encounter resource ID
  • BPM_VALUE: the beats per minute (BPM) value in the Observation resource

Request JSON body: 

{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
EOF

Then execute the following command to send your REST request: 

curl -X PUT \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json; charset=utf-8" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "identifier": [
    {
      "system": "my-code-system",
      "value": "ABC-12345"
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "8867-4",
        "display": "Heart rate"
      }
    ]
  },
  "valueQuantity": {
    "value": BPM_VALUE,
    "unit": "bpm"
  },
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  }
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method PUT `
    -Headers $headers `
    -ContentType: "application/json; charset=utf-8" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345" | Select-Object -Expand Content

APIs Explorer

Copy the request body and open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Paste the request body in this tool, complete any other required fields, and click Execute.

You should receive a JSON response similar to the following:

Patching a FHIR resource

The following samples show how to call the projects.locations.datasets.fhirStores.fhir.patch method to patch a FHIR resource. The method implements the FHIR standard patch interaction (DSTU2, STU3, and R4).

When you patch a resource, you update part of the resource by applying the operations specified in a JSON Patch document.

The request must contain a JSON patch document, and the request headers must contain Content-Type: application/json-patch+json.

The following samples show how to patch an Observation resource. The Observation of a patient's heartbeats per minute (BPM) is updated using the replace patch operation.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

REST

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • OBSERVATION_ID: the Observation resource ID
  • BPM_VALUE: the beats per minute (BPM) value in the patched Observation resource

Request JSON body: 

[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]
EOF

Then execute the following command to send your REST request: 

curl -X PATCH \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json-patch+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method PATCH `
    -Headers $headers `
    -ContentType: "application/json-patch+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

Go

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// patchFHIRResource patches an FHIR resource to be active or not.
func patchFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string, active bool) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	// The following payload works with a Patient resource and is not intended to work with
	// other types of FHIR resources. If necessary, supply a new payload with data that
	// corresponds to the FHIR resource you are patching.
	payload := []map[string]interface{}{
		{
			"op":    "replace",
			"path":  "/active",
			"value": active,
		},
	}
	jsonPayload, err := json.Marshal(payload)
	if err != nil {
		return fmt.Errorf("json.Encode: %w", err)
	}

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	call := fhirService.Patch(name, bytes.NewReader(jsonPayload))
	call.Header().Set("Content-Type", "application/json-patch+json")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("Patch: %w", err)
	}
	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("Patch: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;

public class FhirResourcePatch {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourcePatch(String resourceName, String data)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    // "resource-id");
    // The following data works with a Patient resource and is not intended to work with
    // other types of FHIR resources. If necessary, supply new values for data that
    // correspond to the FHIR resource you are patching.
    // String data = "[{\"op\": \"replace\", \"path\": \"/active\", \"value\": false}]";

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());
    StringEntity requestEntity = new StringEntity(data);

    HttpUriRequest request =
        RequestBuilder.patch(uriBuilder.build())
            .setEntity(requestEntity)
            .addHeader("Content-Type", "application/json-patch+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      System.err.print(
          String.format(
              "Exception patching FHIR resource: %s\n", response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.println("FHIR resource patched: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
  headers: {'Content-Type': 'application/json-patch+json'},
});

async function patchFhirResource() {
  // TODO(developer): replace patchOptions with your desired JSON patch body
  const patchOptions = [{op: 'replace', path: '/active', value: false}];

  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '16e8a860-33b3-49be-9b03-de979feed14a';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}`;
  const request = {
    name,
    requestBody: patchOptions,
  };

  await healthcare.projects.locations.datasets.fhirStores.fhir.patch(request);
  console.log(`Patched ${resourceType} resource`);
}

patchFhirResource();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def patch_resource(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> Dict[str, Any]:
    """Updates part of an existing FHIR resource by applying the operations specified in a [JSON Patch](http://jsonpatch.com/) document.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#patch
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of the FHIR resource.
      resource_id: The "logical id" of the resource. The ID is assigned by the
        server.

    Returns:
      A dict representing the patched FHIR resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    # The following sample body works with a Patient resource and isn't guaranteed
    # to work with other types of FHIR resources. If necessary,
    # supply a new body with data that corresponds to the resource you
    # are updating.
    patient_body = [{"op": "replace", "path": "/active", "value": False}]

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .patch(name=fhir_resource_path, body=patient_body)
    )

    # Sets required application/json-patch+json header.
    # See https://tools.ietf.org/html/rfc6902 for more information.
    request.headers["content-type"] = "application/json-patch+json"

    response = request.execute()

    print(
        f"Patched {resource_type} resource with ID {resource_id}:\n"
        f" {json.dumps(response, indent=2)}"
    )

    return response

Executing a PATCH request in a FHIR bundle

You can a specify a PATCH request in a FHIR bundle (FHIR R4 only). Executing PATCH request in a FHIR bundle allows you to patch many FHIR resources at once, rather than having to make individual patch requests for each FHIR resource.

To make a PATCH request in a bundle, specify the following information in a resource object in the request:

  • A resourceType field set to Binary
  • A contentType field set to application/json-patch+json
  • The patch body encoded in base64

Ensure that the resource object looks like the following:

"resource": {
  "resourceType": "Binary",
  "contentType": "application/json-patch+json",
  "data": "WyB7ICJvcCI6ICJyZXBsYWNlIiwgInBhdGgiOiAiL2JpcnRoRGF0ZSIsICJ2YWx1ZSI6ICIxOTkwLTAxLTAxIiB9IF0K"
}

The following shows the patch body that was encoded to base64 in the data field:

[
  {
    "op": "replace",
    "path": "/birthdate",
    "value": "1990-01-01"
  }
]

The following samples show how to use a PATCH request in a bundle to patch the Patient resource you created in Creating a FHIR resource to have a birthDate value of 1990-01-01:

Before using any of the request data, make the following replacements:

  • PROJECT_ID: your Google Cloud project ID
  • LOCATION: the location of the parent dataset
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • PATIENT_ID: the ID of an existing Patient resource

Request JSON body: 

{
  "type": "transaction",
  "resourceType": "Bundle",
  "entry": [
    {
      "request": {
        "method": "PATCH",
        "url": "Patient/PATIENT_ID"
      },
      "resource": {
        "resourceType": "Binary",
        "contentType": "application/json-patch+json",
        "data": "WyB7ICJvcCI6ICJyZXBsYWNlIiwgInBhdGgiOiAiL2JpcnRoRGF0ZSIsICJ2YWx1ZSI6ICIxOTkwLTAxLTAxIiB9IF0K"
      }
    }
  ]
}

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
{
  "type": "transaction",
  "resourceType": "Bundle",
  "entry": [
    {
      "request": {
        "method": "PATCH",
        "url": "Patient/PATIENT_ID"
      },
      "resource": {
        "resourceType": "Binary",
        "contentType": "application/json-patch+json",
        "data": "WyB7ICJvcCI6ICJyZXBsYWNlIiwgInBhdGgiOiAiL2JpcnRoRGF0ZSIsICJ2YWx1ZSI6ICIxOTkwLTAxLTAxIiB9IF0K"
      }
    }
  ]
}
EOF

Then execute the following command to send your REST request: 

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/fhir+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
{
  "type": "transaction",
  "resourceType": "Bundle",
  "entry": [
    {
      "request": {
        "method": "PATCH",
        "url": "Patient/PATIENT_ID"
      },
      "resource": {
        "resourceType": "Binary",
        "contentType": "application/json-patch+json",
        "data": "WyB7ICJvcCI6ICJyZXBsYWNlIiwgInBhdGgiOiAiL2JpcnRoRGF0ZSIsICJ2YWx1ZSI6ICIxOTkwLTAxLTAxIiB9IF0K"
      }
    }
  ]
}
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -ContentType: "application/fhir+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

Conditionally patching a FHIR resource

The following samples show how to call the projects.locations.datasets.fhirStores.fhir.conditionalPatch method to patch a FHIR resource that matches a search query, rather than identifying the resource by its ID. The method implements the FHIR standard conditional patch interaction (DSTU2, STU3, and R4).

A conditional patch can be applied to only one resource at a time. If the search criteria identify more than one match, the request returns a 412 Precondition Failed error.

In the Cloud Healthcare API v1, conditional operations exclusively use the identifier search parameter, if it exists for the FHIR resource type, to determine which FHIR resources match a conditional search query.

REST

The following sample shows how to send a PATCH request using curl and PowerShell to edit an Observation resource if the Observation's identifier is ABC-12345 in my-code-system. The Observation of a patient's heartbeats per minute (BPM) is updated using the replace patch operation.

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • BPM_VALUE: the beats per minute (BPM) value in the Observation resource

Request JSON body: 

[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]

To send your request, choose one of these options:

curl

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

cat > request.json << 'EOF'
[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]
EOF

Then execute the following command to send your REST request: 

curl -X PATCH \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/json-patch+json" \
     -d @request.json \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345"

PowerShell

Save the request body in a file named request.json. Run the following command in the terminal to create or overwrite this file in the current directory: 

@'
[
  {
    "op": "replace",
    "path": "/valueQuantity/value",
    "value": BPM_VALUE
  }
]
'@  | Out-File -FilePath request.json -Encoding utf8

Then execute the following command to send your REST request: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method PATCH `
    -Headers $headers `
    -ContentType: "application/json-patch+json" `
    -InFile request.json `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345" | Select-Object -Expand Content

APIs Explorer

Copy the request body and open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Paste the request body in this tool, complete any other required fields, and click Execute.

You should receive a JSON response similar to the following:

Getting a FHIR resource

The following samples show how to use the projects.locations.datasets.fhirStores.fhir.read method to get the contents of a FHIR resource.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

Console

To get the contents of a FHIR resource, follow these steps:

  1. In the Google Cloud console, go to the FHIR viewer page.

    Go to the FHIR viewer

  2. In the FHIR Store drop-down list, select a dataset, and then select a FHIR store in the dataset.

  3. To filter the list of resource types, search for the resource types that you want to display.

  4. Click the Resource Type field.

  5. In the Properties drop-down list that appears, select Resource Type.

  6. Enter a resource type.

  7. To search for another resource type, select OR from the Operators drop-down list that appears, and then enter another resource type.

  8. In the list of resource types, select the resource type for the resource that you want to get the contents of.

  9. In the table of resources that appears, select or search for a resource.

REST

The following samples show how to get the details of the Observation resource created in a previous section.

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • OBSERVATION_ID: the Observation resource ID

To send your request, choose one of these options:

curl

Execute the following command: 

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID"

PowerShell

Execute the following command: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID" | Select-Object -Expand Content

APIs Explorer

Open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Complete any required fields and click Execute.

You should receive a JSON response similar to the following:

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// getFHIRResource gets an FHIR resource.
func getFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	call := fhirService.Read(name)
	call.Header().Set("Content-Type", "application/fhir+json;charset=utf-8")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("Read: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("Read: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceGet {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceGet(String resourceName) throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    //  "resource-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();
    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request = RequestBuilder.get().setUri(uriBuilder.build()).build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      String errorMessage =
          String.format(
              "Exception retrieving FHIR resource: %s\n", response.getStatusLine().toString());
      System.err.print(errorMessage);
      responseEntity.writeTo(System.err);
      throw new RuntimeException(errorMessage);
    }
    System.out.println("FHIR resource retrieved: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const getFhirResource = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '16e8a860-33b3-49be-9b03-de979feed14a';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}`;
  const request = {name};

  const resource =
    await healthcare.projects.locations.datasets.fhirStores.fhir.read(
      request
    );
  console.log(`Got ${resourceType} resource:\n`, resource.data);
};

getFhirResource();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def get_resource(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> Dict[str, Any]:
    """Gets the contents of a FHIR resource.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#read
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of FHIR resource.
      resource_id: The "logical id" of the resource you want to get the contents
        of. The ID is assigned by the server.

    Returns:
      A dict representing the FHIR resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .read(name=fhir_resource_path)
    )
    response = request.execute()
    print(
        f"Got contents of {resource_type} resource with ID {resource_id}:\n",
        json.dumps(response, indent=2),
    )

    return response

Get all Encounter resource details

The following samples show how to use the projects.locations.datasets.fhirStores.fhir.Encounter-everything method to view details about an Encounter resource and all resources related to the Encounter.

The method implements the FHIR extended operation Encounter-everything defined in the following FHIR versions:

REST

Use the projects.locations.datasets.fhirStores.fhir.Encounter-everything method.

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the dataset ID
  • FHIR_STORE_ID: the FHIR store ID
  • ENCOUNTER_ID: the Encounter resource ID

To send your request, choose one of these options:

curl

Execute the following command: 

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Encounter/ENCOUNTER_ID/\$everything"

PowerShell

Execute the following command: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Encounter/ENCOUNTER_ID/\$everything" | Select-Object -Expand Content
The following sample response is returned when calling the method on an Encounter resource with the ID c427ce3e-7677-400e-bc06-33a8cecfdd77, which is a synthetic resource in the gs://gcp-public-data--synthea-fhir-data-10-patients/fhir_r4_ndjson/ public Cloud Storage bucket.

Getting all patient compartment resources

The following samples show how to get all resources associated with a particular patient compartment (DSTU2, STU3, and R4). For more information, see projects.locations.datasets.fhirStores.fhir.Patient-everything.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

curl

To get the resources in a patient compartment, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The patient's ID
  • An access token

The following sample shows a GET request using curl:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient/PATIENT_ID/\$everything"

If the request is successful, the server returns a response similar to the following sample in JSON format:

{
  "entry": [
    {
      "resource": {
        "birthDate": "1970-01-01",
        "gender": "female",
        "id": "PATIENT_ID",
        "name": [
          {
            "family": "Smith",
            "given": [
              "Darcy"
            ],
            "use": "official"
          }
        ],
        "resourceType": "Patient"
      }
    },
    {
      "resource": {
        "class": {
          "code": "IMP",
          "display": "inpatient encounter",
          "system": "http://hl7.org/fhir/v3/ActCode"
        },
        "id": "ENCOUNTER_ID",
        "reasonCode": [
          {
            "text": "The patient had an abnormal heart rate. She was concerned about this."
          }
        ],
        "resourceType": "Encounter",
        "status": "finished",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        }
      }
    },
    {
      "resource": {
        "encounter": {
          "reference": "Encounter/ENCOUNTER_ID"
        },
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": BPM_VALUE
        }
      }
    }
  ],
  "resourceType": "Bundle",
  "type": "searchset"
}

PowerShell

To get the resources in a patient compartment, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The patient's ID
  • An access token

The following sample shows a GET request using PowerShell:

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri 'https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient/RESOURCE_ID/$everything' | ConvertTo-Json

If the request is successful, the server returns a response similar to the following sample in JSON format:

{
  "entry": [
    {
      "resource": {
        "birthDate": "1970-01-01",
        "gender": "female",
        "id": "PATIENT_ID",
        "name": [
          {
            "family": "Smith",
            "given": [
              "Darcy"
            ],
            "use": "official"
          }
        ],
        "resourceType": "Patient"
      }
    },
    {
      "resource": {
        "class": {
          "code": "IMP",
          "display": "inpatient encounter",
          "system": "http://hl7.org/fhir/v3/ActCode"
        },
        "id": "ENCOUNTER_ID",
        "reasonCode": [
          {
            "text": "The patient had an abnormal heart rate. She was concerned about this."
          }
        ],
        "resourceType": "Encounter",
        "status": "finished",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        }
      }
    },
    {
      "resource": {
        "encounter": {
          "reference": "Encounter/ENCOUNTER_ID"
        },
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": BPM_VALUE
        }
      }
    }
  ],
  "resourceType": "Bundle",
  "type": "searchset"
}

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// fhirGetPatientEverything gets all resources associated with a particular
// patient compartment.
func fhirGetPatientEverything(w io.Writer, projectID, location, datasetID, fhirStoreID, fhirResourceID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}
	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir
	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/Patient/%s", projectID, location, datasetID, fhirStoreID, fhirResourceID)

	resp, err := fhirService.PatientEverything(name).Do()
	if err != nil {
		return fmt.Errorf("PatientEverything: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("PatientEverything: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceGetPatientEverything {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/Patient/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceGetPatientEverything(String resourceName)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "patient-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/$everything", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request =
        RequestBuilder.get(uriBuilder.build())
            .addHeader("Content-Type", "application/json-patch+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      System.err.print(
          String.format(
              "Exception getting patient everythingresource: %s\n",
              response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.println("Patient compartment results: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const getPatientEverything = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const patientId = '16e8a860-33b3-49be-9b03-de979feed14a';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/Patient/${patientId}`;
  const request = {name};

  const patientEverything =
    await healthcare.projects.locations.datasets.fhirStores.fhir.PatientEverything(
      request
    );
  console.log(
    `Got all resources in patient ${patientId} compartment:\n`,
    JSON.stringify(patientEverything)
  );
};

getPatientEverything();

Python

def get_patient_everything(
    project_id,
    location,
    dataset_id,
    fhir_store_id,
    resource_id,
):
    """Gets all the resources in the patient compartment.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample."""
    # Imports Python's built-in "os" module
    import os

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using a service account
    from google.oauth2 import service_account

    # Gets credentials from the environment.
    credentials = service_account.Credentials.from_service_account_file(
        os.environ["GOOGLE_APPLICATION_CREDENTIALS"]
    )
    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # fhir_store_id = 'my-fhir-store' # replace with the FHIR store ID
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'  # replace with the Patient resource's ID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    resource_path = "{}/datasets/{}/fhirStores/{}/fhir/{}/{}".format(
        url, dataset_id, fhir_store_id, "Patient", resource_id
    )
    resource_path += "/$everything"

    # Sets required application/fhir+json header on the request
    headers = {"Content-Type": "application/fhir+json;charset=utf-8"}

    response = session.get(resource_path, headers=headers)
    response.raise_for_status()

    resource = response.json()

    print(json.dumps(resource, indent=2))

    return resource

Getting patient compartment resources filtered by type or date

The following samples show how to get all resources associated with a particular patient compartment (R4) filtered by a list of types and since a specified date and time. For more information, see projects.locations.datasets.fhirStores.fhir.Patient-everything.

The following curl and PowerShell samples work with R4 FHIR stores.

curl

To get the resources in a patient compartment of a specified type and since a specified date, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The patient's ID
  • A query string containing a comma-separated resource type list and starting date
  • An access token

The following sample shows a GET request using curl:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient/PATIENT_ID/\$everything?_type=RESOURCE_TYPES&_since=DATE"

If the request is successful, the server returns any resources that match the specified criteria in JSON format.

PowerShell

To get the resources in a patient compartment of a specified type and since a specified date, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The patient's ID
  • A query string containing a comma-separated resource type list and starting date
  • An access token

The following sample shows a GET request using PowerShell:

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri 'https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Patient/RESOURCE_ID/$everything?_type=RESOURCE_TYPES&_since=DATE' | ConvertTo-Json

If the request is successful, the server returns any resources that match the specified criteria in JSON format.

Listing FHIR resource versions

The following samples show how to list all historical versions of a FHIR resource. For more information, see projects.locations.datasets.fhirStores.fhir.history.

The samples use the resources created in Creating a FHIR resource and show how to list the versions of an Observation resource.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

curl

The following sample shows how to list all versions of an Observation resource. The Observation has been updated one time after its original creation to change the patient's heartbeats per minute (BPM).

To list all versions of a FHIR resource, including the current version and any deleted versions, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • An access token

The following sample shows a GET request using curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/_history"

If the request is successful, the server returns the response in JSON format. In this example, it returns two versions of the Observation. In the first version, the patient's heart rate was 75 BPM. In the second version, the patient's heart rate was 85 BPM.

{
  "entry": [
    {
      "resource": {
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-02T00:00:00+00:00",
          "versionId": "MTU0MTE5MDk5Mzk2ODcyODAwMA"
        },
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": 85
        }
      }
    },
    {
      "resource": {
        "encounter": {
          "reference": "Encounter/ENCOUNTER_ID"
        },
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-01T00:00:00+00:00",
          "versionId": "MTU0MTE5MDg4MTY0MzQ3MjAwMA"
        },
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": 75
        }
      }
    }
  ],
  "resourceType": "Bundle",
  "type": "history"
}

PowerShell

The following sample shows how to list all versions of an Observation resource. The Observation has been updated one time after its original creation to change the patient's heartbeats per minute (BPM).

To list all versions of a FHIR resource, including the current version and any deleted versions, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • An access token

The following sample shows a GET request using PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/_history" | Select-Object -Expand Content

If the request is successful, the server returns the response in JSON format. In this example, it returns two versions of the Observation. In the first version, the patient's heart rate was 75 BPM. In the second version, the patient's heart rate was 85 BPM.

{
  "entry": [
    {
      "resource": {
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-02T00:00:00+00:00",
          "versionId": "MTU0MTE5MDk5Mzk2ODcyODAwMA"
        },
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": 85
        }
      }
    },
    {
      "resource": {
        "encounter": {
          "reference": "Encounter/ENCOUNTER_ID"
        },
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-01T00:00:00+00:00",
          "versionId": "MTU0MTE5MDg4MTY0MzQ3MjAwMA"
        },
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "reference": "Patient/PATIENT_ID"
        },
        "valueQuantity": {
          "unit": "bpm",
          "value": 75
        }
      }
    }
  ],
  "resourceType": "Bundle",
  "type": "history"
}

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// listFHIRResourceHistory lists an FHIR resource's history.
func listFHIRResourceHistory(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	resp, err := fhirService.History(name).Do()
	if err != nil {
		return fmt.Errorf("History: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("History: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java


import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceListHistory {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceListHistory(String resourceName)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    //  "resource-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/_history", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request =
        RequestBuilder.get()
            .setUri(uriBuilder.build())
            .addHeader("Content-Type", "application/fhir+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      System.err.print(
          String.format(
              "Exception retrieving FHIR history: %s\n", response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.println("FHIR resource history retrieved: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const listFhirResourceHistory = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '16e8a860-33b3-49be-9b03-de979feed14a';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}/_history`;
  const request = {name};

  const resource =
    await healthcare.projects.locations.datasets.fhirStores.fhir.read(
      request
    );
  console.log(JSON.stringify(resource.data, null, 2));
};

listFhirResourceHistory();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def list_resource_history(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> Dict[str, Any]:
    """Gets the history of a resource.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#history
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of FHIR resource.
      resource_id: The "logical id" of the resource whose history you want to
        list. The ID is assigned by the server.

    Returns:
      A dict representing the FHIR resource.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .history(name=fhir_resource_path)
    )
    response = request.execute()
    print(
        f"History for {resource_type} resource with ID {resource_id}:\n"
        f" {json.dumps(response, indent=2)}"
    )
    return response

Retrieving a FHIR resource version

The following samples show how to retrieve a specific version of a resource. For more information, see projects.locations.datasets.fhirStores.fhir.vread.

The version IDs for the Observation resource from Listing FHIR resource versions are highlighted below:

{
  "entry": [
    {
      "resource": {
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-02T00:00:00+00:00",
          "versionId": "MTU0MTE5MDk5Mzk2ODcyODAwMA"
        },
...
    {
      "resource": {
        "encounter": {
          "reference": "Encounter/ENCOUNTER_ID"
        },
        "effectiveDateTime": "2020-01-01T00:00:00+00:00",
        "id": "OBSERVATION_ID",
        "meta": {
          "lastUpdated": "2020-01-01T00:00:00+00:00",
          "versionId": "MTU0MTE5MDg4MTY0MzQ3MjAwMA"
        },
...
}

The following samples use the resources created in Creating a FHIR resource and show how to view an Observation resource.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Node.js, and Python samples work with STU3 FHIR stores.

curl

To get a specific version of a FHIR resource, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • The resource version
  • An access token

The following sample shows a GET request using curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/_history/RESOURCE_VERSION"

If the request is successful, the server returns the response in JSON format. In this example, the first version of the Observation, where the patient's heart rate was 75 BPM, is returned.

{
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "id": "OBSERVATION_ID",
  "meta": {
    "lastUpdated": "2020-01-01T00:00:00+00:00",
    "versionId": "MTU0MTE5MDg4MTY0MzQ3MjAwMA"
  },
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "valueQuantity": {
    "unit": "bpm",
    "value": 75
  }
}

PowerShell

To get a specific version of a FHIR resource, make a GET request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • The resource version
  • An access token

The following sample shows a GET request using curl.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/RESOURCE_VERSION/_history" | Select-Object -Expand Content

If the request is successful, the server returns the response in JSON format. In this example, the first version of the Observation, where the patient's heart rate was 75 BPM, is returned.

{
  "encounter": {
    "reference": "Encounter/ENCOUNTER_ID"
  },
  "effectiveDateTime": "2020-01-01T00:00:00+00:00",
  "id": "OBSERVATION_ID",
  "meta": {
    "lastUpdated": "2020-01-01T00:00:00+00:00",
    "versionId": "MTU0MTE5MDg4MTY0MzQ3MjAwMA"
  },
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "reference": "Patient/PATIENT_ID"
  },
  "valueQuantity": {
    "unit": "bpm",
    "value": 75
  }
}

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// getFHIRResourceHistory gets an FHIR resource history.
func getFHIRResourceHistory(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID, versionID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s/_history/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID, versionID)

	resp, err := fhirService.Vread(name).Do()
	if err != nil {
		return fmt.Errorf("Vread: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("Vread: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceGetHistory {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceGetHistory(String resourceName, String versionId)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    // "resource-id");
    // String versionId = "version-uuid"

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/_history/%s", client.getRootUrl(), resourceName, versionId);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request =
        RequestBuilder.get()
            .setUri(uriBuilder.build())
            .addHeader("Content-Type", "application/fhir+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      System.err.print(
          String.format(
              "Exception retrieving FHIR history: %s\n", response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.println("FHIR resource retrieved from version: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const getFhirResourceHistory = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '16e8a860-33b3-49be-9b03-de979feed14a';
  // const versionId = 'MTU2NPg3NDgyNDAxMDc4OTAwMA';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}/_history/${versionId}`;
  const request = {name};

  const resource =
    await healthcare.projects.locations.datasets.fhirStores.fhir.vread(
      request
    );
  console.log(JSON.stringify(resource.data, null, 2));
};

getFhirResourceHistory();

Python

# Imports the types Dict and Any for runtime type hints.
from typing import Any, Dict  # noqa: E402


def get_resource_history(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
    version_id: str,
) -> Dict[str, Any]:
    """Gets the contents of a version (current or historical) of a FHIR resource by version ID.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#vread
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of FHIR resource.
      resource_id: The "logical id" of the resource whose details you want to view
        at a particular version. The ID is assigned by the server.
      version_id: The ID of the version. Changes whenever the FHIR resource is
        modified.

    Returns:
      A dict representing the FHIR resource at the specified version.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    # version_id = 'MTY4NDQ1MDc3MDU2ODgyNzAwMA'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}/_history/{version_id}"

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .vread(name=fhir_resource_path)
    )
    response = request.execute()
    print(
        f"Got contents of {resource_type} resource with ID {resource_id} at"
        f" version {version_id}:\n {json.dumps(response, indent=2)}"
    )

    return response

Deleting a FHIR resource

The following samples show how to call the projects.locations.datasets.fhirStores.fhir.delete method to delete an Observation FHIR resource.

Regardless of whether the operation succeeds or fails, the server returns a 200 OK HTTP status code. To check that the resource was successfully deleted, search for or get the resource and see if it exists.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

REST

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID
  • OBSERVATION_ID: the Observation resource ID

To send your request, choose one of these options:

curl

Execute the following command: 

curl -X DELETE \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID"

PowerShell

Execute the following command: 

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method DELETE `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation/OBSERVATION_ID" | Select-Object -Expand Content

APIs Explorer

Open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Complete any required fields and click Execute.

You should receive a JSON response similar to the following:

Go

import (
	"context"
	"fmt"
	"io"

	healthcare "google.golang.org/api/healthcare/v1"
)

// deleteFHIRResource deletes an FHIR resource.
// Regardless of whether the operation succeeds or
// fails, the server returns a 200 OK HTTP status code. To check that the
// resource was successfully deleted, search for or get the resource and
// see if it exists.
func deleteFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	if _, err := fhirService.Delete(name).Do(); err != nil {
		return fmt.Errorf("Delete: %w", err)
	}

	fmt.Fprintf(w, "Deleted %q", name)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceDelete {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceDelete(String resourceName)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    // "resource-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request =
        RequestBuilder.delete()
            .setUri(uriBuilder.build())
            .addHeader("Content-Type", "application/fhir+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    // Regardless of whether the operation succeeds or
    // fails, the server returns a 200 OK HTTP status code. To check that the
    // resource was successfully deleted, search for or get the resource and
    // see if it exists.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      String errorMessage =
          String.format(
              "Exception deleting FHIR resource: %s\n", response.getStatusLine().toString());
      System.err.print(errorMessage);
      responseEntity.writeTo(System.err);
      throw new RuntimeException(errorMessage);
    }
    System.out.println("FHIR resource deleted.");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const deleteFhirResource = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '9a664e07-79a4-4c2e-04ed-e996c75484e1';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}`;
  const request = {name};

  // Regardless of whether the operation succeeds or
  // fails, the server returns a 200 OK HTTP status code. To check that the
  // resource was successfully deleted, search for or get the resource and
  // see if it exists.
  await healthcare.projects.locations.datasets.fhirStores.fhir.delete(
    request
  );
  console.log('Deleted FHIR resource');
};

deleteFhirResource();

Python

def delete_resource(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> dict:
    """Deletes a FHIR resource.

    Regardless of whether the operation succeeds or
    fails, the server returns a 200 OK HTTP status code. To check that the
    resource was successfully deleted, search for or get the resource and
    see if it exists.

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#delete
    for the Python API reference.
    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of the FHIR resource.
      resource_id: The "logical id" of the FHIR resource you want to delete. The
        ID is assigned by the server.

    Returns:
      An empty dict.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .delete(name=fhir_resource_path)
    )
    response = request.execute()
    print(f"Deleted {resource_type} resource with ID {resource_id}.")

    return response

Conditionally delete a FHIR resource

In the Cloud Healthcare API v1, conditional operations exclusively use the identifier search parameter, if it exists for the FHIR resource type, to determine which FHIR resources match a conditional search query.

A FHIR resource matches the query ?identifier=my-code-system|ABC-12345 if and only if the resource's identifier.system is my-code-system and its identifier.value is ABC-12345. If a FHIR resource matches the query, the Cloud Healthcare API deletes the resource.

If the query uses the identifier search parameter and matches multiple FHIR resources, the Cloud Healthcare API returns a "412 - Condition not selective enough" error. To individually delete the resources, follow these steps:

  1. Search for each resource to get its unique server-assigned ID.
  2. Individually delete each resource using the ID.

The following samples show how to conditionally delete a FHIR resource that matches a search query, rather than identifying the FHIR resource by its ID. The search query matches and deletes an Observation resource using the Observation's identifier (ABC-12345 in my-code-system).

REST

Use the projects.locations.datasets.fhirStores.fhir.conditionalDelete method.

Before using any of the request data, make the following replacements:

  • PROJECT_ID: the ID of your Google Cloud project
  • LOCATION: the dataset location
  • DATASET_ID: the FHIR store's parent dataset
  • FHIR_STORE_ID: the FHIR store ID

To send your request, choose one of these options:

curl

Execute the following command: 

curl -X DELETE \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345"

PowerShell

Execute the following command: 

$cred = gcloud auth application-default print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method DELETE `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/Observation?identifier=my-code-system|ABC-12345" | Select-Object -Expand Content

APIs Explorer

Open the method reference page. The APIs Explorer panel opens on the right side of the page. You can interact with this tool to send requests. Complete any required fields and click Execute.

You should receive a successful status code (2xx) and an empty response.

Deleting historical versions of a FHIR resource

The following samples show how to delete all historical versions of a FHIR resource. For more information, see projects.locations.datasets.fhirStores.fhir.Resource-purge.

Calling the projects.locations.datasets.fhirStores.fhir.Resource-purge method is limited to users (callers) with the roles/healthcare.fhirStoreAdmin role; users with the roles/healthcare.fhirResourceEditor role cannot call the method. To permit a caller to delete historical versions of a FHIR resource, either:

The samples use the resources created in Creating a FHIR resource and show how to delete the historical versions of an Observation resource.

The following curl and PowerShell samples work with R4 FHIR stores. The Go, Java, Node.js, and Python samples work with STU3 FHIR stores.

curl

To delete all historical versions of a FHIR resource, make a DELETE request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • An access token

The following sample shows a DELETE request using curl.

curl -X DELETE \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     -H "Content-Type: application/fhir+json; charset=utf-8" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/\$purge"

If the request is successful, the server returns the empty response body in JSON format:

{}

PowerShell

To delete all historical versions of a FHIR resource, make a DELETE request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The resource type and ID
  • An access token

The following sample shows a DELETE request using PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred" }

Invoke-RestMethod `
  -Method Delete `
  -Headers $headers `
  -ContentType: "application/fhir+json; charset=utf-8" `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID/fhir/RESOURCE_TYPE/RESOURCE_ID/$purge" | ConvertTo-Json

If the request is successful, the server returns the empty response body in JSON format:

{}

Go

import (
	"context"
	"fmt"
	"io"

	healthcare "google.golang.org/api/healthcare/v1"
)

// purgeFHIRResource purges an FHIR resources.
func purgeFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s", projectID, location, datasetID, fhirStoreID, resourceType, fhirResourceID)

	if _, err := fhirService.ResourcePurge(name).Do(); err != nil {
		return fmt.Errorf("ResourcePurge: %w", err)
	}

	fmt.Fprintf(w, "Resource Purged: %q", name)

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;

public class FhirResourceDeletePurge {
  private static final String FHIR_NAME =
      "projects/%s/locations/%s/datasets/%s/fhirStores/%s/fhir/%s/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void fhirResourceDeletePurge(String resourceName)
      throws IOException, URISyntaxException {
    // String resourceName =
    //    String.format(
    //        FHIR_NAME, "project-id", "region-id", "dataset-id", "store-id", "resource-type",
    // "resource-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/$purge", client.getRootUrl(), resourceName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());

    HttpUriRequest request =
        RequestBuilder.delete()
            .setUri(uriBuilder.build())
            .addHeader("Content-Type", "application/fhir+json")
            .addHeader("Accept-Charset", "utf-8")
            .addHeader("Accept", "application/fhir+json; charset=utf-8")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      String errorMessage =
          String.format(
              "Exception purging FHIR resource: %s\n", response.getStatusLine().toString());
      System.err.print(errorMessage);
      responseEntity.writeTo(System.err);
      throw new RuntimeException(errorMessage);
    }
    System.out.println("FHIR resource history purged (excluding current version).");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const deleteFhirResourcePurge = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const fhirStoreId = 'my-fhir-store';
  // const resourceType = 'Patient';
  // const resourceId = '9a664e07-79a4-4c2e-04ed-e996c75484e1';
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}/fhir/${resourceType}/${resourceId}`;
  const request = {name};

  await healthcare.projects.locations.datasets.fhirStores.fhir.ResourcePurge(
    request
  );
  console.log('Deleted all historical versions of resource');
};

deleteFhirResourcePurge();

Python

def delete_resource_purge(
    project_id: str,
    location: str,
    dataset_id: str,
    fhir_store_id: str,
    resource_type: str,
    resource_id: str,
) -> dict:
    """Deletes all versions of a FHIR resource (excluding the current version).

    See
    https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/fhir
    before running the sample.
    See
    https://googleapis.github.io/google-api-python-client/docs/dyn/healthcare_v1.projects.locations.datasets.fhirStores.fhir.html#Resource_purge
    for the Python API reference.

    Args:
      project_id: The project ID or project number of the Cloud project you want
        to use.
      location: The name of the parent dataset's location.
      dataset_id: The name of the parent dataset.
      fhir_store_id: The name of the FHIR store.
      resource_type: The type of the FHIR resource.
      resource_id: The "logical id" of the resource. The ID is assigned by the
        server.

    Returns:
      An empty dict.
    """
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"

    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'
    # location = 'us-central1'
    # dataset_id = 'my-dataset'
    # fhir_store_id = 'my-fhir-store'
    # resource_type = 'Patient'
    # resource_id = 'b682d-0e-4843-a4a9-78c9ac64'
    fhir_store_parent = (
        f"projects/{project_id}/locations/{location}/datasets/{dataset_id}"
    )
    fhir_resource_path = f"{fhir_store_parent}/fhirStores/{fhir_store_id}/fhir/{resource_type}/{resource_id}"

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .fhir()
        .Resource_purge(name=fhir_resource_path)
    )
    response = request.execute()
    print(
        f"Deleted all versions of {resource_type} resource with ID"
        f" {resource_id} (excluding current version)."
    )
    return response