hugo/docs/content/en/methods/page/TranslationKey.md

title	description	categories	keywords	action
TranslationKey	Returns the translation key of the given page.			related returnType signatures methods/page/Translations methods/page/AllTranslations methods/page/IsTranslated string PAGE.TranslationKey

The translation key creates a relationship between all translations of a given page. The translation key is derived from the file path, or from the translationKey parameter if defined in front matter.

With this site configuration:

{{< code-toggle file=hugo >}} defaultContentLanguage = 'en'

[languages.en] contentDir = 'content/en' languageCode = 'en-US' languageName = 'English' weight = 1

[languages.de] contentDir = 'content/de' languageCode = 'de-DE' languageName = 'Deutsch' weight = 2 {{< /code-toggle >}}

And this content:

content/
├── de/
│   ├── books/
│   │   ├── buch-1.md
│   │   └── book-2.md
│   └── _index.md
├── en/
│   ├── books/
│   │   ├── book-1.md
│   │   └── book-2.md
│   └── _index.md
└── _index.md

And this front matter:

{{< code-toggle file=content/en/books/book-1.md fm=true >}} title = 'Book 1' translationKey = 'foo' {{< /code-toggle >}}

{{< code-toggle file=content/de/books/buch-1.md fm=true >}} title = 'Buch 1' translationKey = 'foo' {{< /code-toggle >}}

When rendering either either of the pages above:

{{ .TranslationKey }} → page/foo

If the front matter of Book 2, in both languages, does not include a translation key:

{{ .TranslationKey }} → page/books/book-2