Shopify multi language is not supported by the Algolia extension at the moment.
To add support for multiple languages, please:
- Add all the required translated data within metafields associated with the product
- Configure the integration to index those metafields
- Depending on the language selected by the user, optionally choose to display this data by modifying the relevant product template (InstantSearch and Autocomplete)
Some Shopify apps which help with translations store their translated data within metafields, which can be indexed by the Shopify integration. Please refer to the documentation of the app in use for more information.