Service Directory client libraries

This page shows how to get started with the Cloud Client Libraries for the Service Directory API. Read more about the client libraries for Cloud APIs in Client Libraries Explained.

Installing the client library

C#

For more information, see Setting Up a C# Development Environment.

Using PowerShell or the Visual Studio Package Manager Console:

Install-Package "Google.Cloud.ServiceDirectory.V1" -Version "1.0.0"

Using the dotnet CLI:

dotnet add package "Google.Cloud.ServiceDirectory.V1" -Version "1.0.0"

Go

For more information, see Setting Up a Go Development Environment.

go get "cloud.google.com/go/servicedirectory/apiv1beta1"

Java

For more information, see Setting Up a Java Development Environment.

If you are using Maven, add the following to your pom.xml file. For more information about BOMs, see The Google Cloud Platform Libraries BOM.

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>libraries-bom</artifactId>
      <version>25.4.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

<dependencies>
  <dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-servicedirectory</artifactId>
  </dependency>

If you are using Gradle, add the following to your dependencies:

implementation platform('com.google.cloud:libraries-bom:25.4.0')

implementation 'com.google.cloud:google-cloud-servicedirectory'

If you are using sbt, add the following to your dependencies:

libraryDependencies += "com.google.cloud" % "google-cloud-servicedirectory" % "2.3.0"

If you're using Visual Studio Code, IntelliJ, or Eclipse, you can add client libraries to your project using the following IDE plugins:

• Cloud Code for VS Code
• Cloud Code for IntelliJ
• Cloud Tools for Eclipse

The plugins provide additional functionality, such as key management for service accounts. Refer to each plugin's documentation for details.

Note: Cloud Java client libraries do not currently support Android.

Node.js

For more information, see Setting Up a Node.js Development Environment.

npm install @google-cloud/service-directory

PHP

For more information, see Using PHP on Google Cloud.

composer require google/cloud-service-directory

Python

For more information, see Setting Up a Python Development Environment.

pip install google-cloud-service-directory

Ruby

For more information, see Setting Up a Ruby Development Environment.

gem install google-cloud-service_directory

Setting up authentication

To run the client library, you must first set up authentication. One way to do that is to create a service account and set an environment variable, as shown in the following steps. For other ways to authenticate, see Authenticating as a service account.

Console

Create a service account:

1. In the Google Cloud console, go to the Create service account page.

   Go to Create service account
2. Select your project.

3. In the Service account name field, enter a name. The Google Cloud console fills in the Service account ID field based on this name.

   In the Service account description field, enter a description. For example, Service account for quickstart.

4. Click Create and continue.

5. To provide access to your project, grant the following role(s) to your service account: Project > Owner.

   In the Select a role list, select a role.

   For additional roles, click Add another role and add each additional role.

   Note: The Role field affects which resources your service account can access in your project. You can revoke these roles or grant additional roles later. In production environments, do not grant the Owner, Editor, or Viewer roles. Instead, grant a predefined role or custom role that meets your needs.
6. Click Continue.

7. Click Done to finish creating the service account.

   Do not close your browser window. You will use it in the next step.

Create a service account key:

1. In the Google Cloud console, click the email address for the service account that you created.
2. Click Keys.
3. Click Add key, and then click Create new key.
4. Click Create. A JSON key file is downloaded to your computer.
5. Click Close.

gcloud

Set up authentication:

1. Create the service account:

   gcloud iam service-accounts create NAME

   Replace NAME with a name for the service account.

2. Grant roles to the service account. Run the following command once for each of the following IAM roles: roles/owner:

   gcloud projects add-iam-policy-binding PROJECT_ID --member="serviceAccount:SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com" --role=ROLE

   Replace the following:

   • SERVICE_ACCOUNT_NAME: the name of the service account
   • PROJECT_ID: the project ID where you created the service account
   • ROLE: the role to grant
   Note: The --role flag affects which resources your service account can access in your project. You can revoke these roles or grant additional roles later. In production environments, do not grant the Owner, Editor, or Viewer roles. Instead, grant a predefined role or custom role that meets your needs.

3. Generate the key file:

   gcloud iam service-accounts keys create FILE_NAME.json --iam-account=SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com

   Replace the following:

   • FILE_NAME: a name for the key file
   • SERVICE_ACCOUNT_NAME: the name of the service account
   • PROJECT_ID: the project ID where you created the service account

Provide authentication credentials to your application code by setting the environment variable GOOGLE_APPLICATION_CREDENTIALS. This variable applies only to your current shell session. If you want the variable to apply to future shell sessions, set the variable in your shell startup file, for example in the ~/.bashrc or ~/.profile file.

Linux or macOS

export GOOGLE_APPLICATION_CREDENTIALS="KEY_PATH"

Replace KEY_PATH with the path of the JSON file that contains your service account key.

For example:

export GOOGLE_APPLICATION_CREDENTIALS="/home/user/Downloads/service-account-file.json"

Windows

For PowerShell:

$env:GOOGLE_APPLICATION_CREDENTIALS="KEY_PATH"

Replace KEY_PATH with the path of the JSON file that contains your service account key.

For example:

$env:GOOGLE_APPLICATION_CREDENTIALS="C:\Users\username\Downloads\service-account-file.json"

For command prompt:

set GOOGLE_APPLICATION_CREDENTIALS=KEY_PATH

Replace KEY_PATH with the path of the JSON file that contains your service account key.

Using the client library

The following example shows how to use the client library.

Go

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory Go API reference documentation.

View on GitHub Feedback

// Sample quickstart is a program that uses Cloud Service Directory
// create. delete, and resolve functionality.
package main

import (
	"context"
	"fmt"
	"log"

	servicedirectory "cloud.google.com/go/servicedirectory/apiv1"
	sdpb "google.golang.org/genproto/googleapis/cloud/servicedirectory/v1"
)

func main() {
	projectID := "your-project-id"
	location := "us-west1"
	serviceID := "golang-quickstart-service"
	namespaceID := "golang-quickstart-namespace"
	endpointID := "golang-quickstart-endpoint"

	ctx := context.Background()
	// Create a registration client.
	registry, err := servicedirectory.NewRegistrationClient(ctx)
	if err != nil {
		log.Fatalf("servicedirectory.NewRegistrationClient: %v", err)
	}
	defer registry.Close()

	// Create a lookup client.
	resolver, err := servicedirectory.NewLookupClient(ctx)
	if err != nil {
		log.Fatalf("servicedirectory.NewLookupClient: %v", err)
	}
	defer resolver.Close()

	// Create a Namespace.
	createNsReq := &sdpb.CreateNamespaceRequest{
		Parent:      fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		NamespaceId: namespaceID,
	}
	namespace, err := registry.CreateNamespace(ctx, createNsReq)
	if err != nil {
		log.Fatalf("servicedirectory.CreateNamespace: %v", err)
	}

	// Create a Service.
	createServiceReq := &sdpb.CreateServiceRequest{
		Parent:    namespace.Name,
		ServiceId: serviceID,
		Service: &sdpb.Service{
			Annotations: map[string]string{
				"key1": "value1",
				"key2": "value2",
			},
		},
	}
	service, err := registry.CreateService(ctx, createServiceReq)
	if err != nil {
		log.Fatalf("servicedirectory.CreateService: %v", err)
	}

	// Create an Endpoint.
	createEndpointReq := &sdpb.CreateEndpointRequest{
		Parent:     service.Name,
		EndpointId: endpointID,
		Endpoint: &sdpb.Endpoint{
			Address: "8.8.8.8",
			Port:    8080,
			Annotations: map[string]string{
				"key1": "value1",
				"key2": "value2",
			},
		},
	}
	_, err = registry.CreateEndpoint(ctx, createEndpointReq)
	if err != nil {
		log.Fatalf("servicedirectory.CreateEndpoint: %v", err)
	}

	// Now Resolve the service.
	lookupRequest := &sdpb.ResolveServiceRequest{
		Name: service.Name,
	}
	result, err := resolver.ResolveService(ctx, lookupRequest)
	if err != nil {
		log.Fatalf("servicedirectory.ResolveService: %v", err)
		return
	}

	fmt.Printf("Successfully Resolved Service %v", result)

	// Delete the namespace.
	deleteNsReq := &sdpb.DeleteNamespaceRequest{
		Name: fmt.Sprintf("projects/%s/locations/%s/namespaces/%s",
			projectID, location, namespaceID),
	}
	registry.DeleteNamespace(ctx, deleteNsReq) // Ignore results.
}

Java

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory Java API reference documentation.

View on GitHub Feedback

import com.google.cloud.servicedirectory.v1.LocationName;
import com.google.cloud.servicedirectory.v1.Namespace;
import com.google.cloud.servicedirectory.v1.RegistrationServiceClient;
import com.google.cloud.servicedirectory.v1.RegistrationServiceClient.ListNamespacesPagedResponse;
import java.io.IOException;

public class Quickstart {

  public static void quickstart() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "your-region";
    quickstart(projectId, locationId);
  }

  public static void quickstart(String projectId, String locationId) throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (RegistrationServiceClient client = RegistrationServiceClient.create()) {

      // The project and location that hold the namespace to list.
      LocationName parent = LocationName.of(projectId, locationId);

      // Call the API.
      ListNamespacesPagedResponse response = client.listNamespaces(parent);

      // Iterate over each namespace and print its name.
      System.out.println("Namespaces:");
      for (Namespace namespace : response.iterateAll()) {
        System.out.println(namespace.getName());
      }
    }
  }
}

Node.js

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory Node.js API reference documentation.

View on GitHub Feedback

//
// TODO(developer): Uncomment these variables before running the sample.
//
// const projectId = 'my-project';
// const locationId = 'us-central1';

// Imports the Google Cloud client library
const {
  RegistrationServiceClient,
} = require('@google-cloud/service-directory');

// Creates a client
const registrationServiceClient = new RegistrationServiceClient();

// Build the location name
const locationName = registrationServiceClient.locationPath(
  projectId,
  locationId
);

async function listNamespaces() {
  const [namespaces] = await registrationServiceClient.listNamespaces({
    parent: locationName,
  });

  console.log('Namespaces: ');
  for (const n of namespaces) {
    console.log(`${n.name}`);
  }
  return namespaces;
}

return listNamespaces();

PHP

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory PHP API reference documentation.

View on GitHub Feedback

use Google\Cloud\ServiceDirectory\V1beta1\RegistrationServiceClient;

/** Uncomment and populate these variables in your code */
// $projectId = '[YOUR_PROJECT_ID]';
// $locationId = '[YOUR_GCP_REGION]';

// Instantiate a client.
$client = new RegistrationServiceClient();

// Run request.
$locationName = RegistrationServiceClient::locationName($projectId, $locationId);
$pagedResponse = $client->listNamespaces($locationName);

// Iterate over each namespace and print its name.
print('Namespaces: ' . PHP_EOL);
foreach ($pagedResponse->iterateAllElements() as $namespace) {
    print($namespace->getName() . PHP_EOL);
}

Python

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory Python API reference documentation.

View on GitHub Feedback

from google.cloud import servicedirectory_v1


def list_namespaces(project_id, location_id):
    """Lists all namespaces in the given location."""

    client = servicedirectory_v1.RegistrationServiceClient()

    response = client.list_namespaces(
        parent=f'projects/{project_id}/locations/{location_id}')

    print(f'Listed namespaces in {location_id}.')
    for namespace in response:
        print(f'Namespace: {namespace.name}')

    return response

Ruby

To learn how to install and use the client library for Service Directory, see Service Directory client libraries. For more information, see the Service Directory Ruby API reference documentation.

View on GitHub Feedback

# Imports the Google Cloud client library
require "google/cloud/service_directory"

# Your Google Cloud Platform project ID
project = ENV["GOOGLE_CLOUD_PROJECT"]

# Location of the Service Directory Namespace
location = "us-central1"

# Initialize a client
registration_service = Google::Cloud::ServiceDirectory.registration_service

# The resource name of the project
location_name = registration_service.location_path(
  project: project, location: location
)

# Request list of namespaces in the project
response = registration_service.list_namespaces parent: location_name

# List all namespaces for your project
puts "Namespaces: "
response.each do |namespace|
  puts namespace.name
end

Next steps

Learn how to programmatically configure Service Directory.

• Configuring Service Directory

Additional resources

C#

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

Go

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

Java

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

Node.js

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

PHP

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

Python

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow

Ruby

• API Reference Documentation
• Source Code
• GitHub Issue Tracker
• Stack Overflow