How this extension works

Use this extension to translate strings (for example, text messages) written to a Cloud Firestore collection.

This extension listens to your specified Cloud Firestore collection. If you add a string to a specified field in any document within that collection, this extension:

• Translates the string into your specified target language(s); the source language of the string is automatically detected.
• Adds the translation(s) of the string to a separate specified field in the same document.

You specify the desired target languages using ISO-639-1 codes. You can find a list of valid languages and their corresponding codes in the Cloud Translate API documentation.

If the original non-translated field of the document is updated, then the translations will be automatically updated, as well.

Additional setup

Before installing this extension, make sure that you've set up a Cloud Firestore database in your Firebase project.

Billing

This extension uses other Firebase or Google Cloud Platform services which may have associated charges:

• Cloud Translation API
• Cloud Firestore
• Cloud Functions

When you use Firebase Extensions, you're only charged for the underlying resources that you use. A paid-tier billing plan is only required if the extension uses a service that requires a paid-tier plan, for example calling to a Google Cloud Platform API or making outbound network requests to non-Google services. All Firebase services offer a free tier of usage. Learn more about Firebase billing.