UNSOLVED Google Cloud Text-to-Speech API

[Ybbet]

Hello,
Has anyone managed to make the Google Cloud Text-to-speech API work?

There is indeed a Text-To-Speech module that works: MMM-TTS.

Unfortunately, the libraries used do not take into account the French language. The alternative solution is the use of google-tts.
I tried to create my own module to integrate the module google-tts-api
Not being used to developing under Nodejs, I have trouble making it work as I would like.

Any suggestion is welcome.

Thanks.