Translate text with a glossary (Advanced edition only)

Translate input text with a glossary.

Explore further

For detailed documentation that includes this code sample, see the following:

• Creating and using glossaries (Advanced)

Code sample

Go

Before trying this sample, follow the Go setup instructions in the Cloud Translation quickstart using client libraries. For more information, see the Cloud Translation Go API reference documentation.

To authenticate to Cloud Translation, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"fmt"
	"io"

	translate "cloud.google.com/go/translate/apiv3"
	"cloud.google.com/go/translate/apiv3/translatepb"
)

// translateTextWithGlossary translates input text and returns translated text.
func translateTextWithGlossary(w io.Writer, projectID string, location string, sourceLang string, targetLang string, text string, glossaryID string) error {
	// projectID := "my-project-id"
	// location := "us-central1"
	// sourceLang := "en"
	// targetLang := "ja"
	// text := "Hello world"
	// glossaryID := "your-glossary-id"

	ctx := context.Background()
	client, err := translate.NewTranslationClient(ctx)
	if err != nil {
		return fmt.Errorf("NewTranslationClient: %w", err)
	}
	defer client.Close()

	req := &translatepb.TranslateTextRequest{
		Parent:             fmt.Sprintf("projects/%s/locations/%s", projectID, location),
		SourceLanguageCode: sourceLang,
		TargetLanguageCode: targetLang,
		MimeType:           "text/plain", // Mime types: "text/plain", "text/html"
		Contents:           []string{text},
		GlossaryConfig: &translatepb.TranslateTextGlossaryConfig{
			Glossary: fmt.Sprintf("projects/%s/locations/%s/glossaries/%s", projectID, location, glossaryID),
		},
	}

	resp, err := client.TranslateText(ctx, req)
	if err != nil {
		return fmt.Errorf("TranslateText: %w", err)
	}

	// Display the translation for each input text provided
	for _, translation := range resp.GetGlossaryTranslations() {
		fmt.Fprintf(w, "Translated text: %v\n", translation.GetTranslatedText())
	}

	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the Cloud Translation quickstart using client libraries. For more information, see the Cloud Translation Java API reference documentation.

To authenticate to Cloud Translation, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.translate.v3.GlossaryName;
import com.google.cloud.translate.v3.LocationName;
import com.google.cloud.translate.v3.TranslateTextGlossaryConfig;
import com.google.cloud.translate.v3.TranslateTextRequest;
import com.google.cloud.translate.v3.TranslateTextResponse;
import com.google.cloud.translate.v3.Translation;
import com.google.cloud.translate.v3.TranslationServiceClient;
import java.io.IOException;

public class TranslateTextWithGlossary {

  public static void translateTextWithGlossary() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "YOUR-PROJECT-ID";
    // Supported Languages: https://cloud.google.com/translate/docs/languages
    String sourceLanguage = "your-source-language";
    String targetLanguage = "your-target-language";
    String text = "your-text";
    String glossaryId = "your-glossary-display-name";
    translateTextWithGlossary(projectId, sourceLanguage, targetLanguage, text, glossaryId);
  }

  // Translates a given text using a glossary.
  public static void translateTextWithGlossary(
      String projectId,
      String sourceLanguage,
      String targetLanguage,
      String text,
      String glossaryId)
      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 (TranslationServiceClient client = TranslationServiceClient.create()) {
      // Supported Locations: `global`, [glossary location], or [model location]
      // Glossaries must be hosted in `us-central1`
      // Custom Models must use the same location as your model. (us-central1)
      String location = "us-central1";
      LocationName parent = LocationName.of(projectId, location);

      GlossaryName glossaryName = GlossaryName.of(projectId, location, glossaryId);
      TranslateTextGlossaryConfig glossaryConfig =
          TranslateTextGlossaryConfig.newBuilder().setGlossary(glossaryName.toString()).build();

      // Supported Mime Types: https://cloud.google.com/translate/docs/supported-formats
      TranslateTextRequest request =
          TranslateTextRequest.newBuilder()
              .setParent(parent.toString())
              .setMimeType("text/plain")
              .setSourceLanguageCode(sourceLanguage)
              .setTargetLanguageCode(targetLanguage)
              .addContents(text)
              .setGlossaryConfig(glossaryConfig)
              .build();

      TranslateTextResponse response = client.translateText(request);

      // Display the translation for each input text provided
      for (Translation translation : response.getGlossaryTranslationsList()) {
        System.out.printf("Translated text: %s\n", translation.getTranslatedText());
      }
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in the Cloud Translation quickstart using client libraries. For more information, see the Cloud Translation Node.js API reference documentation.

To authenticate to Cloud Translation, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const location = 'global';
// const glossaryId = 'YOUR_GLOSSARY_ID';
// const text = 'text to translate';

// Imports the Google Cloud Translation library
const {TranslationServiceClient} = require('@google-cloud/translate');

// Instantiates a client
const translationClient = new TranslationServiceClient();
async function translateTextWithGlossary() {
  const glossaryConfig = {
    glossary: `projects/${projectId}/locations/${location}/glossaries/${glossaryId}`,
  };
  // Construct request
  const request = {
    parent: `projects/${projectId}/locations/${location}`,
    contents: [text],
    mimeType: 'text/plain', // mime types: text/plain, text/html
    sourceLanguageCode: 'en',
    targetLanguageCode: 'es',
    glossaryConfig: glossaryConfig,
  };

  // Run request
  const [response] = await translationClient.translateText(request);

  for (const translation of response.glossaryTranslations) {
    console.log(`Translation: ${translation.translatedText}`);
  }
}

translateTextWithGlossary();

PHP

Before trying this sample, follow the PHP setup instructions in the Cloud Translation quickstart using client libraries. For more information, see the Cloud Translation PHP API reference documentation.

To authenticate to Cloud Translation, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

use Google\Cloud\Translate\V3\Client\TranslationServiceClient;
use Google\Cloud\Translate\V3\TranslateTextGlossaryConfig;
use Google\Cloud\Translate\V3\TranslateTextRequest;

/**
 * @param string $text          The text to translate.
 * @param string $targetLanguage    Language to translate to.
 * @param string $sourceLanguage    Language of the source.
 * @param string $projectId     Your Google Cloud project ID.
 * @param string $glossaryId    Your glossary ID.
 */
function v3_translate_text_with_glossary(
    string $text,
    string $targetLanguage,
    string $sourceLanguage,
    string $projectId,
    string $glossaryId
): void {
    $translationServiceClient = new TranslationServiceClient();

    $glossaryPath = $translationServiceClient->glossaryName(
        $projectId,
        'us-central1',
        $glossaryId
    );
    $contents = [$text];
    $formattedParent = $translationServiceClient->locationName(
        $projectId,
        'us-central1'
    );
    $glossaryConfig = new TranslateTextGlossaryConfig();
    $glossaryConfig->setGlossary($glossaryPath);

    // Optional. Can be "text/plain" or "text/html".
    $mimeType = 'text/plain';

    try {
        $request = (new TranslateTextRequest())
            ->setContents($contents)
            ->setTargetLanguageCode($targetLanguage)
            ->setParent($formattedParent)
            ->setSourceLanguageCode($sourceLanguage)
            ->setGlossaryConfig($glossaryConfig)
            ->setMimeType($mimeType);
        $response = $translationServiceClient->translateText($request);
        // Display the translation for each input text provided
        foreach ($response->getGlossaryTranslations() as $translation) {
            printf('Translated text: %s' . PHP_EOL, $translation->getTranslatedText());
        }
    } finally {
        $translationServiceClient->close();
    }
}

Python

Before trying this sample, follow the Python setup instructions in the Cloud Translation quickstart using client libraries. For more information, see the Cloud Translation Python API reference documentation.

To authenticate to Cloud Translation, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

from google.cloud import translate


def translate_text_with_glossary(
    text: str = "YOUR_TEXT_TO_TRANSLATE",
    project_id: str = "YOUR_PROJECT_ID",
    glossary_id: str = "YOUR_GLOSSARY_ID",
) -> translate.TranslateTextResponse:
    """Translates a given text using a glossary.

    Args:
        text: The text to translate.
        project_id: The ID of the GCP project that owns the glossary.
        glossary_id: The ID of the glossary to use.

    Returns:
        The translated text."""
    client = translate.TranslationServiceClient()
    location = "us-central1"
    parent = f"projects/{project_id}/locations/{location}"

    glossary = client.glossary_path(
        project_id, "us-central1", glossary_id  # The location of the glossary
    )

    glossary_config = translate.TranslateTextGlossaryConfig(glossary=glossary)

    # Supported language codes: https://cloud.google.com/translate/docs/languages
    response = client.translate_text(
        request={
            "contents": [text],
            "target_language_code": "ja",
            "source_language_code": "en",
            "parent": parent,
            "glossary_config": glossary_config,
        }
    )

    print("Translated text: \n")
    for translation in response.glossary_translations:
        print(f"\t {translation.translated_text}")

    return response

What's next

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