@google-cloud/translate

@google-cloud/translate

Google Translate API Client Library for Node.js

Looking for more Google APIs than just Translate? You might want to check out google-cloud.

• API Documentation
• Official Documentation

$ npm install --save @google-cloud/translate

var translate = require('@google-cloud/translate')({
  projectId: 'grape-spaceship-123',
  keyFilename: '/path/to/keyfile.json'
});

// Translate a string of text.
translate.translate('Hello', 'es', function(err, translation) {
  if (!err) {
    // translation = 'Hola'
  }
});

// Detect a language from a string of text.
translate.detect('Hello', function(err, results) {
  if (!err) {
    // results = {
    //   language: 'en',
    //   confidence: 1,
    //   input: 'Hello'
    // }
  }
});

// Get a list of supported languages.
translate.getLanguages(function(err, languages) {
  if (!err) {
    // languages = [
    //   'af',
    //   'ar',
    //   'az',
    //   ...
    // ]
  }
});

// Promises are also supported by omitting callbacks.
translate.getLanguages().then(function(data) {
  var languages = data[0];
});

// It's also possible to integrate with third-party Promise libraries.
var translate = require('@google-cloud/translate')({
  promise: require('bluebird')
});

Authentication

It's incredibly easy to get authenticated and start using Google's APIs. You can set your credentials on a global basis as well as on a per-API basis. See each individual API section below to see how you can auth on a per-API-basis. This is useful if you want to use different accounts for different Google Cloud services.

On Google Compute Engine

If you are running this client on Google Compute Engine, we handle authentication for you with no configuration. You just need to make sure that when you [set up the GCE instance][gce-how-to], you add the correct scopes for the APIs you want to access.

// Authenticating on a global basis.
var projectId = process.env.GCLOUD_PROJECT; // E.g. 'grape-spaceship-123'

var translate = require('@google-cloud/translate')({
  projectId: projectId
});

// ...you're good to go!

With a Google Developers Service Account

If you are not running this client on Google Compute Engine, you need a Google Developers service account. To create a service account:

1. Visit the [Google Developers Console][dev-console].
2. Create a new project or click on an existing project.
3. Navigate to APIs & auth > APIs section and turn on the following APIs (you may need to enable billing in order to use these services):

• Google Translate API

1. Navigate to APIs & auth > Credentials and then:

• If you want to use a new service account key, click on Create credentials and select Service account key. After the account key is created, you will be prompted to download the JSON key file that the library uses to authenticate your requests.
• If you want to generate a new service account key for an existing service account, click on Generate new JSON key and download the JSON key file.
• If you want to use an API key, click on Create credentials and select API key. After the API key is created, you will see a newly opened modal with the API key in a field named Your API key that the library uses to authenticate your requests.
• If you want to generate a new API key for an existing API key, click on an existing API key and click Regenerate key.

var projectId = process.env.GCLOUD_PROJECT; // E.g. 'grape-spaceship-123'

var translate = require('@google-cloud/translate')({
  projectId: projectId,

  // The path to your key file:
  keyFilename: '/path/to/keyfile.json'

  // Or the contents of the key file:
  credentials: require('./path/to/keyfile.json')

  // Your API key (if not using a service account JSON file):
  key: '...'
});

// ...you're good to go!

With an API key

It's also possible to authenticate with an API key. To create an API key:

1. Visit the [Google Developers Console][dev-console].
2. Create a new project or click on an existing project.
3. Navigate to APIs & auth > APIs section and turn on the following APIs (you may need to enable billing in order to use these services):

• Google Translate API

1. Navigate to APIs & auth > Credentials and then click on Create new Client ID and select API key. You should then be presented with a pop-up containing your newly created key.

var translate = require('@google-cloud/translate')({
  key: 'API Key'
});

// ...you're good to go!