Extension

Polylang

Integration with the Polylang plugin, adding fields and filters to select the language when fetching data on a multilingual site.

Click to watch tutorial video - 02:56

Integration with the Polylang plugin (and also Polylang PRO).

When Polylang is installed in the WordPress site, fetching data using GraphQL would retrieve results for all languages. For instance, field posts might fetch posts in English, Spanish and French.

With the Polylang integration, fields get an extra argument polylangLanguagesBy, to fetch data for some specific language only:

{
  posts(
    filter: {
      polylangLanguagesBy: {
        codes: ["en"]
      }
    }
  ) {
    title
    polylangLanguage {
      code
    }
  }
 
  pages(
    filter: {
      polylangLanguagesBy: {
        locales: ["en_US"]
      }
    }
  ) {
    title
    polylangLanguage {
      locale
    }
  }
 
  customPosts(
    filter: {
      polylangLanguagesBy: {
        predefined: DEFAULT
      }
      customPostTypes: "some-cpt"
    }
  ) {
    title
    polylangLanguage {
      code
    }
  }
}