Secret Manager client libraries

This page shows how to get started with the Cloud Client Libraries for the Secret Manager 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:

$ Install-Package Google.Cloud.SecretManager.V1 -Version 1.0.0

Using the dotnet CLI:

$ dotnet add package Google.Cloud.SecretManager.V1 --version 1.0.0

Go

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

$ go get cloud.google.com/go/secretmanager/apiv1
$ go get google.golang.org/genproto/googleapis/cloud/secretmanager/v1

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>26.1.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

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

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

implementation platform('com.google.cloud:libraries-bom:26.1.0')

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

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

libraryDependencies += "com.google.cloud" % "google-cloud-secretmanager" % "2.3.1"

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 --save @google-cloud/secret-manager

PHP

For more information, see Using PHP on Google Cloud.

$ composer require google/cloud-secret-manager

Python

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

$ pip install google-cloud-secret-manager

Ruby

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

$ gem install google-cloud-secret_manager

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 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 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 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.

C#

To learn how to install and use the client library for Secret Manager, see Secret Manager client libraries. For more information, see the Secret Manager C# API reference documentation.

View on GitHub Feedback

using System;
using System.Text;
using Google.Api.Gax.ResourceNames;
using Google.Cloud.SecretManager.V1;
using Google.Protobuf;

public class QuickstartSample
{
    public void Quickstart(string projectId = "my-project", string secretId = "my-secret")
    {
        // Create the client.
        SecretManagerServiceClient client = SecretManagerServiceClient.Create();

        // Build the parent project name.
        ProjectName projectName = new ProjectName(projectId);

        // Build the secret to create.
        Secret secret = new Secret
        {
            Replication = new Replication
            {
                Automatic = new Replication.Types.Automatic(),
            },
        };

        Secret createdSecret = client.CreateSecret(projectName, secretId, secret);

        // Build a payload.
        SecretPayload payload = new SecretPayload
        {
            Data = ByteString.CopyFrom("my super secret data", Encoding.UTF8),
        };

        // Add a secret version.
        SecretVersion createdVersion = client.AddSecretVersion(createdSecret.SecretName, payload);

        // Access the secret version.
        AccessSecretVersionResponse result = client.AccessSecretVersion(createdVersion.SecretVersionName);

        // Print the results
        //
        // WARNING: Do not print secrets in production environments. This
        // snippet is for demonstration purposes only.
        string data = result.Payload.Data.ToStringUtf8();
        Console.WriteLine($"Plaintext: {data}");
    }
}

Go

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

View on GitHub Feedback

// Sample quickstart is a basic program that uses Secret Manager.
package main

import (
	"context"
	"fmt"
	"log"

	secretmanager "cloud.google.com/go/secretmanager/apiv1"
	secretmanagerpb "google.golang.org/genproto/googleapis/cloud/secretmanager/v1"
)

func main() {
	// GCP project in which to store secrets in Secret Manager.
	projectID := "your-project-id"

	// Create the client.
	ctx := context.Background()
	client, err := secretmanager.NewClient(ctx)
	if err != nil {
		log.Fatalf("failed to setup client: %v", err)
	}
	defer client.Close()

	// Create the request to create the secret.
	createSecretReq := &secretmanagerpb.CreateSecretRequest{
		Parent:   fmt.Sprintf("projects/%s", projectID),
		SecretId: "my-secret",
		Secret: &secretmanagerpb.Secret{
			Replication: &secretmanagerpb.Replication{
				Replication: &secretmanagerpb.Replication_Automatic_{
					Automatic: &secretmanagerpb.Replication_Automatic{},
				},
			},
		},
	}

	secret, err := client.CreateSecret(ctx, createSecretReq)
	if err != nil {
		log.Fatalf("failed to create secret: %v", err)
	}

	// Declare the payload to store.
	payload := []byte("my super secret data")

	// Build the request.
	addSecretVersionReq := &secretmanagerpb.AddSecretVersionRequest{
		Parent: secret.Name,
		Payload: &secretmanagerpb.SecretPayload{
			Data: payload,
		},
	}

	// Call the API.
	version, err := client.AddSecretVersion(ctx, addSecretVersionReq)
	if err != nil {
		log.Fatalf("failed to add secret version: %v", err)
	}

	// Build the request.
	accessRequest := &secretmanagerpb.AccessSecretVersionRequest{
		Name: version.Name,
	}

	// Call the API.
	result, err := client.AccessSecretVersion(ctx, accessRequest)
	if err != nil {
		log.Fatalf("failed to access secret version: %v", err)
	}

	// Print the secret payload.
	//
	// WARNING: Do not print the secret in a production environment - this
	// snippet is showing how to access the secret material.
	log.Printf("Plaintext: %s", result.Payload.Data)
}

Java

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

View on GitHub Feedback

import com.google.cloud.secretmanager.v1.AccessSecretVersionResponse;
import com.google.cloud.secretmanager.v1.ProjectName;
import com.google.cloud.secretmanager.v1.Replication;
import com.google.cloud.secretmanager.v1.Secret;
import com.google.cloud.secretmanager.v1.SecretManagerServiceClient;
import com.google.cloud.secretmanager.v1.SecretPayload;
import com.google.cloud.secretmanager.v1.SecretVersion;
import com.google.protobuf.ByteString;

public class Quickstart {

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

  public void quickstart(String projectId, String secretId) throws Exception {
    // 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 (SecretManagerServiceClient client = SecretManagerServiceClient.create()) {
      // Build the parent name from the project.
      ProjectName projectName = ProjectName.of(projectId);

      // Create the parent secret.
      Secret secret =
          Secret.newBuilder()
              .setReplication(
                  Replication.newBuilder()
                      .setAutomatic(Replication.Automatic.newBuilder().build())
                      .build())
              .build();

      Secret createdSecret = client.createSecret(projectName, secretId, secret);

      // Add a secret version.
      SecretPayload payload =
          SecretPayload.newBuilder().setData(ByteString.copyFromUtf8("hello world!")).build();
      SecretVersion addedVersion = client.addSecretVersion(createdSecret.getName(), payload);

      // Access the secret version.
      AccessSecretVersionResponse response = client.accessSecretVersion(addedVersion.getName());

      // Print the secret payload.
      //
      // WARNING: Do not print the secret in a production environment - this
      // snippet is showing how to access the secret material.
      String data = response.getPayload().getData().toStringUtf8();
      System.out.printf("Plaintext: %s\n", data);
    }
  }
}

Node.js

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

View on GitHub Feedback

// Import the Secret Manager client and instantiate it:
const {SecretManagerServiceClient} = require('@google-cloud/secret-manager');
const client = new SecretManagerServiceClient();

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// parent = 'projects/my-project', // Project for which to manage secrets.
// secretId = 'foo', // Secret ID.
// payload = 'hello world!' // String source data.

async function createAndAccessSecret() {
  // Create the secret with automation replication.
  const [secret] = await client.createSecret({
    parent: parent,
    secret: {
      name: secretId,
      replication: {
        automatic: {},
      },
    },
    secretId,
  });

  console.info(`Created secret ${secret.name}`);

  // Add a version with a payload onto the secret.
  const [version] = await client.addSecretVersion({
    parent: secret.name,
    payload: {
      data: Buffer.from(payload, 'utf8'),
    },
  });

  console.info(`Added secret version ${version.name}`);

  // Access the secret.
  const [accessResponse] = await client.accessSecretVersion({
    name: version.name,
  });

  const responsePayload = accessResponse.payload.data.toString('utf8');
  console.info(`Payload: ${responsePayload}`);
}
createAndAccessSecret();

PHP

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

View on GitHub Feedback

// Import the Secret Manager client library.
use Google\Cloud\SecretManager\V1\Replication;
use Google\Cloud\SecretManager\V1\Replication\Automatic;
use Google\Cloud\SecretManager\V1\Secret;
use Google\Cloud\SecretManager\V1\SecretManagerServiceClient;
use Google\Cloud\SecretManager\V1\SecretPayload;

/** Uncomment and populate these variables in your code */
// $projectId = 'YOUR_GOOGLE_CLOUD_PROJECT' (e.g. 'my-project');
// $secretId = 'YOUR_SECRET_ID' (e.g. 'my-secret');

// Create the Secret Manager client.
$client = new SecretManagerServiceClient();

// Build the parent name from the project.
$parent = $client->projectName($projectId);

// Create the parent secret.
$secret = $client->createSecret($parent, $secretId,
    new Secret([
        'replication' => new Replication([
            'automatic' => new Automatic(),
        ]),
    ])
);

// Add the secret version.
$version = $client->addSecretVersion($secret->getName(), new SecretPayload([
    'data' => 'hello world',
]));

// Access the secret version.
$response = $client->accessSecretVersion($version->getName());

// Print the secret payload.
//
// WARNING: Do not print the secret in a production environment - this
// snippet is showing how to access the secret material.
$payload = $response->getPayload()->getData();
printf('Plaintext: %s' . PHP_EOL, $payload);

Python

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

View on GitHub Feedback

# Import the Secret Manager client library.
from google.cloud import secretmanager

# GCP project in which to store secrets in Secret Manager.
project_id = "YOUR_PROJECT_ID"

# ID of the secret to create.
secret_id = "YOUR_SECRET_ID"

# Create the Secret Manager client.
client = secretmanager.SecretManagerServiceClient()

# Build the parent name from the project.
parent = f"projects/{project_id}"

# Create the parent secret.
secret = client.create_secret(
    request={
        "parent": parent,
        "secret_id": secret_id,
        "secret": {"replication": {"automatic": {}}},
    }
)

# Add the secret version.
version = client.add_secret_version(
    request={"parent": secret.name, "payload": {"data": b"hello world!"}}
)

# Access the secret version.
response = client.access_secret_version(request={"name": version.name})

# Print the secret payload.
#
# WARNING: Do not print the secret in a production environment - this
# snippet is showing how to access the secret material.
payload = response.payload.data.decode("UTF-8")
print("Plaintext: {}".format(payload))

Ruby

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

View on GitHub Feedback

# project_id  = "YOUR-GOOGLE-CLOUD-PROJECT"  # (e.g. "my-project")
# secret_id   = "YOUR-SECRET-ID"             # (e.g. "my-secret")

# Import the Secret Manager client library.
require "google/cloud/secret_manager"

# Create the Secret Manager client.
client = Google::Cloud::SecretManager.secret_manager_service

# Build the parent name from the project.
parent = "projects/#{project_id}"

# Create the parent secret.
secret = client.create_secret(
  parent:    parent,
  secret_id: secret_id,
  secret:    {
    replication: {
      automatic: {}
    }
  }
)

# Add a secret version.
version = client.add_secret_version(
  parent:  secret.name,
  payload: {
    data: "hello world!"
  }
)

# Access the secret version.
response = client.access_secret_version name: version.name

# Print the secret payload.
#
# WARNING: Do not print the secret in a production environment - this
# snippet is showing how to access the secret material.
payload = response.payload.data
puts "Plaintext: #{payload}"

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