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import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/storage"
	"google.golang.org/api/iterator"
)

// authenticateImplicitWithAdc uses Application Default Credentials
// to automatically find credentials and authenticate.
func authenticateImplicitWithAdc(w io.Writer, projectId string) error {
	// projectId := "your_project_id"

	ctx := context.Background()

	// NOTE: Replace the client created below with the client required for your application.
	// Note that the credentials are not specified when constructing the client.
	// The client library finds your credentials using ADC.
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("NewClient: %w", err)
	}
	defer client.Close()

	it := client.Buckets(ctx, projectId)
	for {
		bucketAttrs, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return err
		}
		fmt.Fprintf(w, "Bucket: %v\n", bucketAttrs.Name)
	}

	fmt.Fprintf(w, "Listed all storage buckets.\n")

	return nil
}

import com.google.api.gax.paging.Page;
import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
import java.io.IOException;

public class AuthenticateImplicitWithAdc {

  public static void main(String[] args) throws IOException {
    // TODO(Developer):
    //  1. Before running this sample,
    //  set up Application Default Credentials as described in
    //  https://cloud.google.com/docs/authentication/external/set-up-adc
    //  2. Replace the project variable below.
    //  3. Make sure you have the necessary permission to list storage buckets
    //  "storage.buckets.list"
    String projectId = "your-google-cloud-project-id";
    authenticateImplicitWithAdc(projectId);
  }

  // When interacting with Google Cloud Client libraries, the library can auto-detect the
  // credentials to use.
  public static void authenticateImplicitWithAdc(String project) throws IOException {

    // *NOTE*: Replace the client created below with the client required for your application.
    // Note that the credentials are not specified when constructing the client.
    // Hence, the client library will look for credentials using ADC.
    //
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    Storage storage = StorageOptions.newBuilder().setProjectId(project).build().getService();

    System.out.println("Buckets:");
    Page<Bucket> buckets = storage.list();
    for (Bucket bucket : buckets.iterateAll()) {
      System.out.println(bucket.toString());
    }
    System.out.println("Listed all storage buckets.");
  }
}

/**
 * TODO(developer):
 *  1. Uncomment and replace these variables before running the sample.
 *  2. Set up ADC as described in https://cloud.google.com/docs/authentication/external/set-up-adc
 *  3. Make sure you have the necessary permission to list storage buckets "storage.buckets.list"
 *    (https://cloud.google.com/storage/docs/access-control/iam-permissions#bucket_permissions)
 */
// const projectId = 'YOUR_PROJECT_ID';

const {Storage} = require('@google-cloud/storage');

async function authenticateImplicitWithAdc() {
  // This snippet demonstrates how to list buckets.
  // NOTE: Replace the client created below with the client required for your application.
  // Note that the credentials are not specified when constructing the client.
  // The client library finds your credentials using ADC.
  const storage = new Storage({
    projectId,
  });
  const [buckets] = await storage.getBuckets();
  console.log('Buckets:');

  for (const bucket of buckets) {
    console.log(`- ${bucket.name}`);
  }

  console.log('Listed all storage buckets.');
}

authenticateImplicitWithAdc();

// Imports the Cloud Storage client library.
use Google\Cloud\Storage\StorageClient;

/**
 * Authenticate to a cloud client library using a service account implicitly.
 *
 * @param string $projectId The Google project ID.
 */
function auth_cloud_implicit($projectId)
{
    $config = [
        'projectId' => $projectId,
    ];

    # If you don't specify credentials when constructing the client, the
    # client library will look for credentials in the environment.
    $storage = new StorageClient($config);

    # Make an authenticated API request (listing storage buckets)
    foreach ($storage->buckets() as $bucket) {
        printf('Bucket: %s' . PHP_EOL, $bucket->name());
    }
}

from google.cloud import storage


def authenticate_implicit_with_adc(project_id="your-google-cloud-project-id"):
    """
    When interacting with Google Cloud Client libraries, the library can auto-detect the
    credentials to use.

    // TODO(Developer):
    //  1. Before running this sample,
    //  set up ADC as described in https://cloud.google.com/docs/authentication/external/set-up-adc
    //  2. Replace the project variable.
    //  3. Make sure that the user account or service account that you are using
    //  has the required permissions. For this sample, you must have "storage.buckets.list".
    Args:
        project_id: The project id of your Google Cloud project.
    """

    # This snippet demonstrates how to list buckets.
    # *NOTE*: Replace the client created below with the client required for your application.
    # Note that the credentials are not specified when constructing the client.
    # Hence, the client library will look for credentials using ADC.
    storage_client = storage.Client(project=project_id)
    buckets = storage_client.list_buckets()
    print("Buckets:")
    for bucket in buckets:
        print(bucket.name)
    print("Listed all storage buckets.")

def authenticate_implicit_with_adc project_id:
  # The ID of your Google Cloud project
  # project_id = "your-google-cloud-project-id"

  ###
  # When interacting with Google Cloud Client libraries, the library can auto-detect the
  # credentials to use.
  # TODO(Developer):
  #   1. Before running this sample,
  #      set up ADC as described in https://cloud.google.com/docs/authentication/external/set-up-adc
  #   2. Replace the project variable.
  #   3. Make sure that the user account or service account that you are using
  #      has the required permissions. For this sample, you must have "storage.buckets.list".
  ###

  require "google/cloud/storage"

  # This sample demonstrates how to list buckets.
  # *NOTE*: Replace the client created below with the client required for your application.
  # Note that the credentials are not specified when constructing the client.
  # Hence, the client library will look for credentials using ADC.
  storage = Google::Cloud::Storage.new project_id: project_id
  buckets = storage.buckets
  puts "Buckets: "
  buckets.each do |bucket|
    puts bucket.name
  end
  puts "Plaintext: Listed all storage buckets."
end

using Google.Cloud.Language.V1;
using System;

public class UseApiKeySample
{
    public void AnalyzeSentiment(string apiKey)
    {
        LanguageServiceClient client = new LanguageServiceClientBuilder
        {
            ApiKey = apiKey
        }.Build();

        string text = "Hello, world!";

        AnalyzeSentimentResponse response = client.AnalyzeSentiment(Document.FromPlainText(text));
        Console.WriteLine($"Text: {text}");
        Sentiment sentiment = response.DocumentSentiment;
        Console.WriteLine($"Sentiment: {sentiment.Score}, {sentiment.Magnitude}");
        Console.WriteLine("Successfully authenticated using the API key");
    }
}

#include "google/cloud/language/v1/language_client.h"
#include "google/cloud/credentials.h"
#include "google/cloud/options.h"

void AuthenticateWithApiKey(std::vector<std::string> const& argv) {
  if (argv.size() != 2) {
    throw google::cloud::testing_util::Usage{
        "authenticate-with-api-key <project-id> <api-key>"};
  }
  namespace gc = ::google::cloud;
  auto options = gc::Options{}.set<gc::UnifiedCredentialsOption>(
      gc::MakeApiKeyCredentials(argv[1]));
  auto client = gc::language_v1::LanguageServiceClient(
      gc::language_v1::MakeLanguageServiceConnection(options));

  auto constexpr kText = "Hello, world!";

  google::cloud::language::v1::Document d;
  d.set_content(kText);
  d.set_type(google::cloud::language::v1::Document::PLAIN_TEXT);

  auto response = client.AnalyzeSentiment(d, {});
  if (!response) throw std::move(response.status());
  auto const& sentiment = response->document_sentiment();
  std::cout << "Text: " << kText << "\n";
  std::cout << "Sentiment: " << sentiment.score() << ", "
            << sentiment.magnitude() << "\n";
  std::cout << "Successfully authenticated using the API key\n";
}

import (
	"context"
	"fmt"
	"io"

	language "cloud.google.com/go/language/apiv1"
	"cloud.google.com/go/language/apiv1/languagepb"
	"google.golang.org/api/option"
)

// authenticateWithAPIKey authenticates with an API key for Google Language
// service.
func authenticateWithAPIKey(w io.Writer, apiKey string) error {
	// apiKey := "api-key-string"

	ctx := context.Background()

	// Initialize the Language Service client and set the API key.
	client, err := language.NewClient(ctx, option.WithAPIKey(apiKey))
	if err != nil {
		return fmt.Errorf("NewClient: %w", err)
	}
	defer client.Close()

	text := "Hello, world!"
	// Make a request to analyze the sentiment of the text.
	res, err := client.AnalyzeSentiment(ctx, &languagepb.AnalyzeSentimentRequest{
		Document: &languagepb.Document{
			Source: &languagepb.Document_Content{
				Content: text,
			},
			Type: languagepb.Document_PLAIN_TEXT,
		},
	})
	if err != nil {
		return fmt.Errorf("AnalyzeSentiment: %w", err)
	}

	fmt.Fprintf(w, "Text: %s\n", text)
	fmt.Fprintf(w, "Sentiment score: %v\n", res.DocumentSentiment.Score)
	fmt.Fprintln(w, "Successfully authenticated using the API key.")

	return nil
}

const {
  v1: {LanguageServiceClient},
} = require('@google-cloud/language');

/**
 * Authenticates with an API key for Google Language service.
 *
 * @param {string} apiKey An API Key to use
 */
async function authenticateWithAPIKey(apiKey) {
  const language = new LanguageServiceClient({apiKey});

  // Alternatively:
  // const {GoogleAuth} = require('google-auth-library');
  // const auth = new GoogleAuth({apiKey});
  // const language = new LanguageServiceClient({auth});

  const text = 'Hello, world!';

  const [response] = await language.analyzeSentiment({
    document: {
      content: text,
      type: 'PLAIN_TEXT',
    },
  });

  console.log(`Text: ${text}`);
  console.log(
    `Sentiment: ${response.documentSentiment.score}, ${response.documentSentiment.magnitude}`,
  );
  console.log('Successfully authenticated using the API key');
}

authenticateWithAPIKey();

from google.cloud import language_v1


def authenticate_with_api_key(api_key_string: str) -> None:
    """
    Authenticates with an API key for Google Language service.

    TODO(Developer): Replace this variable before running the sample.

    Args:
        api_key_string: The API key to authenticate to the service.
    """

    # Initialize the Language Service client and set the API key
    client = language_v1.LanguageServiceClient(
        client_options={"api_key": api_key_string}
    )

    text = "Hello, world!"
    document = language_v1.Document(
        content=text, type_=language_v1.Document.Type.PLAIN_TEXT
    )

    # Make a request to analyze the sentiment of the text.
    sentiment = client.analyze_sentiment(
        request={"document": document}
    ).document_sentiment

    print(f"Text: {text}")
    print(f"Sentiment: {sentiment.score}, {sentiment.magnitude}")
    print("Successfully authenticated using the API key")