Importing and exporting FHIR resources using Cloud Storage

This page explains how to export and import FHIR resources to and from Cloud Storage using the projects.locations.datasets.fhirStores.import and projects.locations.datasets.fhirStores.export methods.

Depending on the format of your FHIR data, to load data into a FHIR store, you could use the projects.locations.datasets.fhirStores.import method or the projects.locations.datasets.fhirStores.fhir.executeBundle method. For guidance in choosing a method, see FHIR import.

Setting Cloud Storage permissions

Before exporting and importing FHIR resources to and from Cloud Storage, you must grant additional permissions to the Cloud Healthcare Service Agent service account. For more information, see FHIR store Cloud Storage permissions.

Generating simulated patient data for DSTU2 or STU3

Synthea™ is a simulator for generating patient population data. If you aren't using Synthea, skip to Importing FHIR resources or Exporting FHIR resources.

By default, generated Synthea™ data uses the FHIR R4 JSON representation for resources.

You can only import data in the version your FHIR store is configured to accept. To generate Synthea™ FHIR STU3 or FHIR DSTU2 data so that you can import it into a FHIR STU3 or DSTU2 store, complete the following steps:

  1. Clone the Synthea™ tool repository from GitHub:

    git clone https://github.com/synthetichealth/synthea.git
    
  2. Complete the installation steps.

  3. From the synthea directory, use a text editor to open the src/main/resources/synthea.properties file and then make the following changes:

    To generate FHIR STU3 data:

    • Set all *.fhir.export and *.fhir_dstu2.export values to false
    • Set all *.fhir_stu3.export values to true

    To generate FHIR DSTU2 data:

    • Set all *.fhir.export and *.fhir_stu3.export values to false
    • Set all *.fhir_dstu2.export values to true

    For example, to generate FHIR STU3 data:

    exporter.fhir.export = false
    exporter.fhir_stu3.export = true
    exporter.fhir_dstu2.export = false
    
    exporter.hospital.fhir.export = false
    exporter.hospital.fhir_stu3.export = true
    exporter.hospital.fhir_dstu2.export = false
    
    exporter.practitioner.fhir.export = false
    exporter.practitioner.fhir_stu3.export = true
    exporter.practitioner.fhir_dstu2.export = false
    
  4. Follow the instructions to generate synthetic patient data. The generated data outputs to the synthea/output/fhir_stu3 for FHIR STU3 or the synthea/output/fhir_dstu2 directory for FHIR DSTU2.

  5. Copy the generated data to a Cloud Storage bucket so that you can import it into a Cloud Healthcare API FHIR store. For example, to copy the data to a directory called synthea-data in an existing Cloud Storage bucket, run the following gsutil cp command from the synthea directory:

    gsutil -m cp output/fhir_stu3/* gs://BUCKET/synthea-data
    
  6. Follow the instructions for importing FHIR resources.

Importing FHIR resources

When configuring the body of the import request, you can set the ContentStructure to one of the following values.

  • CONTENT_STRUCTURE_UNSPECIFIED
  • BUNDLE: The source file contains one or more lines of newline-delimited JSON (ndjson). Each line is a bundle, which contains one or more resources. Set the bundle type to history to import resource versions. If you don't specify ContentStructure, it defaults to BUNDLE.
  • RESOURCE: The source file contains one or more lines of newline-delimited JSON (ndjson). Each line is a single resource.
  • BUNDLE_PRETTY: The entire source file is one JSON bundle. The JSON can span multiple lines.
  • RESOURCE_PRETTY: The entire source file is one JSON resource. The JSON can span multiple lines.

For example, suppose that you are importing a file named resources.ndjson with the following content:

{"class":{"code":"IMP","display":"inpatient encounter","system":"http://hl7.org/fhir/v3/ActCode"},"id":"6090e773-3e91-40a7-8fce-1e22f6774c29","reason":[{"text":"The patient had an abnormal heart rate. She was concerned about this."}],"resourceType":"Encounter","status":"finished","subject":{"reference":"Patient/2938bb9e-1f16-429e-8d44-9508ab0e4151"}}
{"class":{"code":"IMP","display":"inpatient encounter","system":"http://hl7.org/fhir/v3/ActCode"},"id":"7101f884-4f02-51b8-9gdf-2f33g7885d30","reason":[{"text":"The patient was experiencing recurrent fevers."}],"resourceType":"Encounter","status":"finished","subject":{"reference":"Patient/3049cc0f-2g27-530f-9e55-0619bc1f5262"}}
{"birthDate":"1970-01-01","gender":"female","id":"2938bb9e-1f16-429e-8d44-9508ab0e4151","name":[{"family":"Smith","given":["Darcy"],"use":"official"}],"resourceType":"Patient"}

The file contains two Encounter resources and one Patient resource. Each resource is on a separate line, so you set ContentStructure to RESOURCE.

Your data might import incorrectly or not import at all if ContentStructure does not match the format of your data. For example, the sample file above will not import correctly unless ContentStructure is set to RESOURCE in the import request.

The following samples show how to import FHIR resources from a Cloud Storage bucket.

gcloud

To import FHIR resources into a FHIR store, use the gcloud healthcare fhir-stores import gcs command. Specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The location of the object in a Cloud Storage bucket. The location of the files within the bucket is arbitrary and does not have to adhere exactly to the format specified in the following sample. When specifying the location of the FHIR resources in Cloud Storage, you can use wildcards to import multiple files from one or more directories. The following wildcards are supported:
    • Use * to match 0 or more non-separator characters. For example, gs://BUCKET/DIRECTORY/Example*.ndjson matches Example.ndjson and Example22.ndjson in DIRECTORY.
    • Use ** to match 0 or more characters (including separators). Must be used at the end of a path and with no other wildcards in the path. Can also be used with a filename extension (such as .ndjson), which imports all files with the filename extension in the specified directory and its subdirectories. For example, gs://BUCKET/DIRECTORY/**.ndjson imports all files with the .ndjson filename extension in DIRECTORY and its subdirectories.
    • Use ? to match 1 character. For example, gs://BUCKET/DIRECTORY/Example?.ndjson matches Example1.ndjson but does not match Example.ndjson or Example01.ndjson.

The following sample shows the gcloud healthcare fhir-stores import gcs command.

gcloud healthcare fhir-stores import gcs FHIR_STORE_ID \
  --dataset=DATASET_ID \
  --location=LOCATION \
  --gcs-uri=gs://BUCKET/DIRECTORY/FHIR_RESOURCE_NAME.ndjson \
  [--content-structure=CONTENT_STRUCTURE]

The command line displays the operation ID and, after the operation completes, done:

Request issued for: [FHIR_STORE_ID]
Waiting for operation [OPERATION_ID] to complete...done.
name: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID

To view more details of the operation, run the gcloud healthcare operations describe command, providing the OPERATION_ID from the response:

gcloud healthcare operations describe OPERATION_ID \
  --dataset=DATASET_ID

The response includes done: true.

done: true
metadata:
'@type': type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata
apiMethodName: google.cloud.healthcare.v1.fhir.FhirService.ImportResources
createTime: 'CREATE_TIME'
endTime: 'END_TIME'
name: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID
response:
'@type': type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ImportResourcesResponse
fhirStore: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID

API

To import FHIR resources into a FHIR store, use the projects.locations.datasets.fhirStores.import method.

  • The location of the files within the bucket is arbitrary and does not have to adhere exactly to the format specified in the following samples.
  • When specifying the location of the FHIR resources in Cloud Storage, you can use wildcards to import multiple files from one or more directories. The following wildcards are supported:
    • Use * to match 0 or more non-separator characters. For example, gs://BUCKET/DIRECTORY/Example*.ndjson matches Example.ndjson and Example22.ndjson in DIRECTORY.
    • Use ** to match 0 or more characters (including separators). Must be used at the end of a path and with no other wildcards in the path. Can also be used with a filename extension (such as .ndjson), which imports all files with the filename extension in the specified directory and its subdirectories. For example, gs://BUCKET/DIRECTORY/**.ndjson imports all files with the .ndjson filename extension in DIRECTORY and its subdirectories.
    • Use ? to match 1 character. For example, gs://BUCKET/DIRECTORY/Example?.ndjson matches Example1.ndjson but does not match Example.ndjson or Example01.ndjson.

curl

To import FHIR resources into a FHIR store, make a POST request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The location of the object in a Cloud Storage bucket
  • An access token

The following sample shows how to import a single file using a POST request using curl.

curl -X POST \
    -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
    -H "Content-Type: application/json; charset=utf-8" \
    --data "{
      'contentStructure': 'CONTENT_STRUCTURE',
      'gcsSource': {
        'uri': 'gs://BUCKET/DIRECTORY/FHIR_RESOURCE_FILE'
      }
    }" "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID:import"

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

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"
}

The response contains an operation name. To track the status of the operation, you can use the Operation get method:

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/operations/OPERATION_ID"

If the request is successful, the server returns a response with the status of the operation in JSON format:

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata",
    "apiMethodName": "google.cloud.healthcare.v1.fhir.FhirService.ImportResources",
    "createTime": "CREATE_TIME",
    "endTime": "END_TIME",
    "logsUrl": "https://console.cloud.google.com/logs/viewer/CLOUD_LOGGING_URL",
    "counter": {
      "success": "SUCCESS_COUNT"
    }
  },
  "done": true,
  "response": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ImportResourcesResponse",
  }
}

PowerShell

To import FHIR resources into a FHIR store, make a POST request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The location of the object in a Cloud Storage bucket
  • An access token

The following sample shows a POST request using Windows PowerShell.

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

Invoke-WebRequest `
  -Method Post `
  -Headers $headers `
  -ContentType: "application/json; charset=utf-8" `
  -Body "{
    'contentStructure': 'CONTENT_STRUCTURE',
    'gcsSource': {
      'uri': 'gs://BUCKET/DIRECTORY/FHIR_RESOURCE_FILE'
    }
  }" `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID:import" | Select-Object -Expand Content

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

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"
}

The response contains an operation name. To track the status of the operation, you can use the Operation get method:

$cred = gcloud auth application-default 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/operations/OPERATION_ID" | Select-Object -Expand Content

If the request is successful, the server returns a response with the status of the operation in JSON format:

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata",
    "apiMethodName": "google.cloud.healthcare.v1.fhir.FhirService.ImportResources",
    "createTime": "CREATE_TIME",
    "endTime": "END_TIME",
    "logsUrl": "https://console.cloud.google.com/logs/viewer/CLOUD_LOGGING_URL",
    "counter": {
      "success": "SUCCESS_COUNT"
    }
  },
  "done": true,
  "response": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ImportResourcesResponse",
  }
}

Go

import (
	"context"
	"fmt"
	"io"
	"time"

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

// importsFHIRResource imports an FHIR resource.
func importFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, gcsURI string) error {
	ctx := context.Background()

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

	storesService := healthcareService.Projects.Locations.Datasets.FhirStores

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s", projectID, location, datasetID, fhirStoreID)
	req := &healthcare.ImportResourcesRequest{
		ContentStructure: "RESOURCE",
		GcsSource: &healthcare.GoogleCloudHealthcareV1FhirGcsSource{
			Uri: gcsURI,
		},
	}

	op, err := storesService.Import(name, req).Do()
	if err != nil {
		return fmt.Errorf("Import: %v", err)
	}

	operationsService := healthcareService.Projects.Locations.Datasets.Operations
	ticker := time.NewTicker(1 * time.Second)
	defer ticker.Stop()
	for {
		select {
		case <-ctx.Done():
			return ctx.Err()
		case <-ticker.C:
			newOp, err := operationsService.Get(op.Name).Do()
			if err != nil {
				return fmt.Errorf("operationsService.Get(%q): %v", op.Name, err)
			}
			if newOp.Done {
				if newOp.Error != nil {
					return fmt.Errorf("import operation %q completed with error: %s", op.Name, newOp.Error.Details)
				}
				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.jackson2.JacksonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.FhirStores;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.api.services.healthcare.v1.model.GoogleCloudHealthcareV1FhirGcsSource;
import com.google.api.services.healthcare.v1.model.ImportResourcesRequest;
import com.google.api.services.healthcare.v1.model.Operation;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

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

  public static void fhirStoreImport(String fhirStoreName, String gcsUri) throws IOException {
    // String fhirStoreName =
    //    String.format(
    //        FHIR_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-fhir-id");
    // String gcsUri = "gs://your-bucket-id/path/to/destination/dir"

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

    // Configure where the store should be imported from.
    GoogleCloudHealthcareV1FhirGcsSource gcsSource =
        new GoogleCloudHealthcareV1FhirGcsSource().setUri(gcsUri);
    ImportResourcesRequest importRequest = new ImportResourcesRequest().setGcsSource(gcsSource);

    // Create request and configure any parameters.
    FhirStores.CloudHealthcareImport request =
        client
            .projects()
            .locations()
            .datasets()
            .fhirStores()
            .healthcareImport(fhirStoreName, importRequest);

    // Execute the request, wait for the operation to complete, and process the results.
    try {
      Operation operation = request.execute();
      while (operation.getDone() == null || !operation.getDone()) {
        // Update the status of the operation with another request.
        Thread.sleep(500); // Pause for 500ms between requests.
        operation =
            client
                .projects()
                .locations()
                .datasets()
                .operations()
                .get(operation.getName())
                .execute();
      }
      System.out.println("FHIR store import complete: " + operation.getResponse());
    } catch (Exception ex) {
      System.out.printf("Error during request execution: %s", ex.toString());
      ex.printStackTrace(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();
  }
}

Node.js

const {google} = require('googleapis');
const healthcare = google.healthcare('v1');
const sleep = require('../sleep');

const importFhirResources = async () => {
  const auth = await google.auth.getClient({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  });
  google.options({auth});

  // 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 gcsUri = 'my-bucket/my-directory/*.json'
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}`;
  const request = {
    name,
    resource: {
      contentStructure: 'RESOURCE',
      gcsSource: {
        uri: `gs://${gcsUri}`,
      },
    },
  };

  const operation = await healthcare.projects.locations.datasets.fhirStores.import(
    request
  );
  const operationName = operation.data.name;

  const operationRequest = {name: operationName};

  // Wait twenty seconds for the LRO to finish.
  await sleep(20000);

  // Check the LRO's status
  const operationStatus = await healthcare.projects.locations.datasets.operations.get(
    operationRequest
  );

  const success = operationStatus.data.metadata.counter.success;

  if (typeof success !== 'undefined') {
    console.log(
      `Import FHIR resources succeeded. ${success} resources imported.`
    );
  } else {
    console.log(
      'Imported FHIR resources failed. Details available in Cloud Logging at the following URL:\n',
      operationStatus.data.metadata.logsUrl
    );
  }
};

importFhirResources();

Python

def import_fhir_resources(project_id, cloud_region, dataset_id, fhir_store_id, gcs_uri):
    """Import resources into the FHIR store by copying them from the
    specified source.
    """
    client = get_client()
    fhir_store_parent = "projects/{}/locations/{}/datasets/{}".format(
        project_id, cloud_region, dataset_id
    )
    fhir_store_name = "{}/fhirStores/{}".format(fhir_store_parent, fhir_store_id)

    body = {
        "contentStructure": "CONTENT_STRUCTURE_UNSPECIFIED",
        "gcsSource": {"uri": "gs://{}".format(gcs_uri)},
    }

    # Escape "import()" method keyword because "import"
    # is a reserved keyword in Python
    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .import_(name=fhir_store_name, body=body)
    )

    response = request.execute()
    print("Imported FHIR resources: {}".format(gcs_uri))

    return response

Exporting FHIR resources

The following samples show how to export FHIR resources to a Cloud Storage bucket. When you export FHIR resources from a FHIR store, all resources in the FHIR store are exported.

During export, the Cloud Healthcare API creates one object for each resource type. Each object consists of a newline-delimited JSON file where each line is a FHIR resource. The filename includes the resource type, for example, 1264567891234567_Patient.ndjson.

gcloud

To export FHIR instances to a Cloud Storage bucket, use the gcloud healthcare fhir-stores export gcs command. Specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The destination Cloud Storage bucket or directory. Write to a Cloud Storage bucket or directory, rather than an object, because the Cloud Healthcare API creates one object for each resource type. Each object consists of newline-delimited JSON where each line is a FHIR resource. If you specify a directory that doesn't exist, it's created.

The following sample shows the gcloud healthcare fhir-stores export gcs command.

gcloud healthcare fhir-stores export gcs FHIR_STORE_ID \
  --dataset=DATASET_ID \
  --location=LOCATION \
  --gcs-uri=gs://BUCKET/DIRECTORY

The command line displays the operation ID:

Waiting for operation [OPERATION_ID] to complete...done.
name: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID

To view the status of the operation, run the gcloud healthcare operations describe command, providing the OPERATION_ID from the response:

gcloud healthcare operations describe OPERATION_ID \
  --dataset=DATASET_ID

After the command completes, the response includes done.

metadata:
'@type': type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata
apiMethodName: google.cloud.healthcare.v1.fhir.FhirService.ExportFhirData
createTime: "CREATE_TIME"
endTime: "END_TIME"
name: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID
response:
'@type': type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ExportResourcesResponse
fhirStore: projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID
resourceCount: 'RESOURCE_COUNT'

API

To export FHIR resources, use the projects.locations.datasets.fhirStores.export method.

  • Write to a Cloud Storage bucket or directory, rather than an object, because the Cloud Healthcare API creates one newline-delimited JSON file for each resource type. In each JSON file, each line is a FHIR resource.
  • If the command specifies a directory that does not exist, the directory is created.

curl

To export FHIR resources, make a POST request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The destination Cloud Storage bucket
  • An access token

The following sample shows a POST request using curl.

curl -X POST \
    -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
    -H "Content-Type: application/json; charset=utf-8" \
    --data "{
      'gcsDestination': {
        'uriPrefix': 'gs://BUCKET/DIRECTORY'
      }
    }" "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID:export"

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

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"
}

The response contains an operation name. To track the status of the operation, you can use the Operation get method:

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/operations/OPERATION_ID"

If the request is successful, the server returns a response with the status of the operation in JSON format:

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata",
    "apiMethodName": "google.cloud.healthcare.v1.fhir.FhirService.ExportResources",
    "createTime": "CREATE_TIME",
    "endTime": "END_TIME",
    "logsUrl": "https://console.cloud.google.com/logs/viewer/CLOUD_LOGGING_URL",
    "counter": {
      "success": "SUCCESS_COUNT"
    }
  },
  "done": true,
  "response": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ExportResourcesResponse",
  }
}

PowerShell

To export FHIR resources, make a POST request and specify the following information:

  • The name of the parent dataset
  • The name of the FHIR store
  • The destination Cloud Storage bucket or directory. Write to a Cloud Storage bucket or directory, rather than an object, because the Cloud Healthcare API creates one object for each resource type. Each object consists of newline-delimited JSON where each line is a FHIR resource.
  • An access token

The following sample shows a POST request using Windows PowerShell.

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

Invoke-WebRequest `
  -Method Post `
  -Headers $headers `
  -ContentType: "application/json; charset=utf-8" `
  -Body "{
    'gcsDestination': {
      'uriPrefix': 'gs://BUCKET/DIRECTORY'
    }
  }" `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/fhirStores/FHIR_STORE_ID:export" | Select-Object -Expand Content

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

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"
}

The response contains an operation name. To track the status of the operation, you can use the Operation get method:

$cred = gcloud auth application-default 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/operations/OPERATION_ID" | Select-Object -Expand Content

If the request is successful, the server returns a response with the status of the operation in JSON format:

{
  "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata",
    "apiMethodName": "google.cloud.healthcare.v1.fhir.FhirService.ExportResources",
    "createTime": "CREATE_TIME",
    "endTime": "END_TIME",
    "logsUrl": "https://console.cloud.google.com/logs/viewer/CLOUD_LOGGING_URL",
    "counter": {
      "success": "SUCCESS_COUNT"
    }
  },
  "done": true,
  "response": {
    "@type": "type.googleapis.com/google.cloud.healthcare.v1.fhir.rest.ExportResourcesResponse",
  }
}

Go

import (
	"context"
	"fmt"
	"io"
	"time"

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

// exportFHIRResource exports the resources in the FHIR store.
func exportFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, gcsURIPrefix string) error {
	ctx := context.Background()

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

	storesService := healthcareService.Projects.Locations.Datasets.FhirStores

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s", projectID, location, datasetID, fhirStoreID)
	req := &healthcare.ExportResourcesRequest{
		GcsDestination: &healthcare.GoogleCloudHealthcareV1FhirGcsDestination{
			UriPrefix: gcsURIPrefix,
		},
	}

	op, err := storesService.Export(name, req).Do()
	if err != nil {
		return fmt.Errorf("Export: %v", err)
	}

	operationsService := healthcareService.Projects.Locations.Datasets.Operations
	ticker := time.NewTicker(1 * time.Second)
	defer ticker.Stop()
	for {
		select {
		case <-ctx.Done():
			return ctx.Err()
		case <-ticker.C:
			newOp, err := operationsService.Get(op.Name).Do()
			if err != nil {
				return fmt.Errorf("operationsService.Get(%q): %v", op.Name, err)
			}
			if newOp.Done {
				if newOp.Error != nil {
					return fmt.Errorf("export operation %q completed with error: %v", op.Name, newOp.Error)
				}
				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.jackson2.JacksonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.FhirStores;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.api.services.healthcare.v1.model.ExportResourcesRequest;
import com.google.api.services.healthcare.v1.model.GoogleCloudHealthcareV1FhirGcsDestination;
import com.google.api.services.healthcare.v1.model.Operation;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

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

  public static void fhirStoreExport(String fhirStoreName, String gcsUri) throws IOException {
    // String fhirStoreName =
    //    String.format(
    //        FHIR_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-fhir-id");
    // String gcsUri = "gs://your-bucket-id/path/to/destination/dir"

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

    // Configure where the store will be exported too.
    GoogleCloudHealthcareV1FhirGcsDestination gcsDestination =
        new GoogleCloudHealthcareV1FhirGcsDestination().setUriPrefix(gcsUri);
    ExportResourcesRequest exportRequest =
        new ExportResourcesRequest().setGcsDestination(gcsDestination);

    // Create request and configure any parameters.
    FhirStores.Export request =
        client.projects().locations().datasets().fhirStores().export(fhirStoreName, exportRequest);

    // Execute the request, wait for the operation to complete, and process the results.
    try {
      Operation operation = request.execute();
      while (operation.getDone() == null || !operation.getDone()) {
        // Update the status of the operation with another request.
        Thread.sleep(500); // Pause for 500ms between requests.
        operation =
            client
                .projects()
                .locations()
                .datasets()
                .operations()
                .get(operation.getName())
                .execute();
      }
      System.out.println("Fhir store export complete." + operation.getResponse());
    } catch (Exception ex) {
      System.out.printf("Error during request execution: %s", ex.toString());
      ex.printStackTrace(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();
  }
}

Node.js

const {google} = require('googleapis');
const healthcare = google.healthcare('v1');
const sleep = require('../sleep');

const exportFhirResourcesGcs = async () => {
  const auth = await google.auth.getClient({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  });
  google.options({auth});

  // 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 gcsUri = 'my-bucket/my-directory'
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/fhirStores/${fhirStoreId}`;
  const request = {
    name,
    resource: {
      gcsDestination: {
        // The destination location in Cloud Storage for the FHIR resources
        uriPrefix: `gs://${gcsUri}`,
      },
    },
  };

  const operation = await healthcare.projects.locations.datasets.fhirStores.export(
    request
  );
  const operationName = operation.data.name;

  // Wait ten seconds for the LRO to finish
  await sleep(10000);

  // Check the LRO's status
  const operationStatus = await healthcare.projects.locations.datasets.operations.get(
    {name: operationName}
  );

  if (typeof operationStatus.data.metadata.counter !== 'undefined') {
    console.log('Exported FHIR resources successfully');
  } else {
    console.log('Export failed');
  }
};

exportFhirResourcesGcs();

Python

def export_fhir_store_gcs(project_id, cloud_region, dataset_id, fhir_store_id, gcs_uri):
    """Export resources to a Google Cloud Storage bucket by copying
    them from the FHIR store."""
    client = get_client()
    fhir_store_parent = "projects/{}/locations/{}/datasets/{}".format(
        project_id, cloud_region, dataset_id
    )
    fhir_store_name = "{}/fhirStores/{}".format(fhir_store_parent, fhir_store_id)

    body = {"gcsDestination": {"uriPrefix": "gs://{}/fhir_export".format(gcs_uri)}}

    request = (
        client.projects()
        .locations()
        .datasets()
        .fhirStores()
        .export(name=fhir_store_name, body=body)
    )

    response = request.execute()
    print("Exported FHIR resources to bucket: gs://{}".format(gcs_uri))

    return response

Troubleshooting FHIR import and export requests

If errors occur during a FHIR import or export request, the errors are logged to Cloud Logging. For more information, see Viewing error logs in Cloud Logging.