Resolve service

Resolve a Service Directory service.

Documentation pages that include this code sample

To view the code sample used in context, see the following documentation:

Code sample

C#

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.


using Google.Cloud.ServiceDirectory.V1;

public class ResolveServiceSample
{
    public Service ResolveService(
        string projectId = "my-project",
        string locationId = "us-east1",
        string namespaceId = "test-namespace",
        string serviceId = "test-service")
    {
        // Create client
        LookupServiceClient lookupServiceClient = LookupServiceClient.Create();
        // Initialize request argument(s)
        ResolveServiceRequest request = new ResolveServiceRequest
        {
            ServiceName = ServiceName.FromProjectLocationNamespaceService(projectId, locationId, namespaceId, serviceId),
        };
        // Make the request
        ResolveServiceResponse response = lookupServiceClient.ResolveService(request);
        return response.Service;
    }
}

Go

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.

import (
	"context"
	"fmt"
	"io"

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

func resolveService(w io.Writer, projectID string) error {
	// projectID := "my-project"
	location := "us-east4"
	namespaceID := "golang-test-namespace"
	serviceID := "golang-test-service"

	ctx := context.Background()
	// Create a lookup client.
	resolver, err := servicedirectory.NewLookupClient(ctx)
	if err != nil {
		return fmt.Errorf("ServiceDirectory.NewLookupClient: %v", err)
	}

	defer resolver.Close()
	// Now Resolve the service.
	req := &sdpb.ResolveServiceRequest{
		Name: fmt.Sprintf("projects/%s/locations/%s/namespaces/%s/services/%s", projectID, location, namespaceID, serviceID),
	}
	result, err := resolver.ResolveService(ctx, req)
	if err != nil {
		return fmt.Errorf("ResolveService: %v", err)
	}

	fmt.Fprintf(w, "Successfully Resolved Service %v\n", result)
	return nil
}

Java

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.


import com.google.cloud.servicedirectory.v1.Endpoint;
import com.google.cloud.servicedirectory.v1.LookupServiceClient;
import com.google.cloud.servicedirectory.v1.ResolveServiceRequest;
import com.google.cloud.servicedirectory.v1.ResolveServiceResponse;
import com.google.cloud.servicedirectory.v1.ServiceName;
import java.io.IOException;

public class ServicesResolve {

  public static void resolveService() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // These variables should refer to an existing Service Directory service.
    String projectId = "your-project-id";
    String locationId = "your-region";
    String namespaceId = "your-namespace";
    String serviceId = "your-service";
    resolveService(projectId, locationId, namespaceId, serviceId);
  }

  // Resolve a service.
  public static void resolveService(
      String projectId, String locationId, String namespaceId, String serviceId)
      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 (LookupServiceClient client = LookupServiceClient.create()) {
      // The service to resolve.
      ServiceName name = ServiceName.of(projectId, locationId, namespaceId, serviceId);

      // Construct the resolve request to be sent to the client.
      ResolveServiceRequest request =
          ResolveServiceRequest.newBuilder().setName(name.toString()).build();

      // Send the request to resolve the service.
      ResolveServiceResponse resolveResponse = client.resolveService(request);

      // Process the response.
      System.out.println("Resolved Service: " + resolveResponse.getService().getName());

      System.out.println("Endpoints found:");
      for (Endpoint endpoint : resolveResponse.getService().getEndpointsList()) {
        System.out.println(
            endpoint.getName() + " -- " + endpoint.getAddress() + ":" + endpoint.getPort());
      }
    }
  }
}

Node.js

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.

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

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

// Creates a client
const lookupServiceClient = new LookupServiceClient();

// Build the service name
const serviceName = lookupServiceClient.servicePath(
  projectId,
  locationId,
  namespaceId,
  serviceId
);

async function resolveService() {
  const [response] = await lookupServiceClient.resolveService({
    name: serviceName,
  });

  console.log(`Resolved service: ${response.service.name}`);
  for (const e of response.service.endpoints) {
    console.log(`\n${e.name}`);
    console.log(`Address: ${e.address}`);
    console.log(`Port: ${e.port}\n`);
  }
  return response.service;
}

return resolveService();

PHP

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.

use Google\Cloud\ServiceDirectory\V1beta1\LookupServiceClient;
use Google\Cloud\ServiceDirectory\V1beta1\Service;

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

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

// Run request.
$serviceName = LookupServiceClient::serviceName($projectId, $locationId, $namespaceId, $serviceId);
$service = $client->resolveService($serviceName)->getService();

// Print results.
printf('Resolved Service: %s' . PHP_EOL, $service->getName());
print('Endpoints:' . PHP_EOL);
foreach ($service->getEndpoints() as $endpoint) {
    printf('  Name: %s' . PHP_EOL, $endpoint->getName());
    printf('    IP: %s' . PHP_EOL, $endpoint->getAddress());
    printf('    Port: %d' . PHP_EOL, $endpoint->getPort());
}

Python

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.

def resolve_service(project_id, location_id, namespace_id, service_id):
    """Resolves a service in the given namespace."""

    client = servicedirectory_v1.LookupServiceClient()

    request = servicedirectory_v1.ResolveServiceRequest(
        name=servicedirectory_v1.RegistrationServiceClient().service_path(
            project_id, location_id, namespace_id, service_id))

    response = client.resolve_service(request=request)

    print('Endpoints found:')
    for endpoint in response.service.endpoints:
        print(f'{endpoint.name} -- {endpoint.address}:{endpoint.port}')

    return response

Ruby

To learn how to install and use the client library for Service Directory, see Service Directory client libraries.

# project   = "Your Google Cloud project ID"
# location  = "The Google Cloud region containing the namespace"
# namespace = "The name of the parent namespace"
# service   = "The name of the service"

require "google/cloud/service_directory"

# Initialize the client
lookup_service = Google::Cloud::ServiceDirectory.lookup_service

# The name of the service
service_path = lookup_service.service_path(
  project:   project,
  location:  location,
  namespace: namespace,
  service:   service
)

# Use the Service Directory API to resolve the service
response = lookup_service.resolve_service name: service_path
puts "Resolved service: #{response.service.name}"
puts "Endpoints: "
response.service.endpoints.each do |endpoint|
  puts "#{endpoint.name} #{endpoint.address} #{endpoint.port}"
end

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