Use API through wixFetch

Not yet solved, can anybody help?
I’ve got a dataset with member-generated content and I want to be able to show it in multiple languages. Can I use this API? And if so, how would that work? Could somebody show me a code snippet?

https://tech.yandex.com/translate/doc/dg/reference/translate-docpage/ (yes I do have an API key)

I just saw @givemeawhisky is active ( the Corvid Master!) so maybe you can help me with this?

I am still needing help on this.