How can I build voice search for my app on webos smart tv similar to youtube?

I am building a voice search feature for my OTT application. However I can't find any API that Webos TV SDK exposes me to be able to listen to the user's voice from the magic remote. I tried a voice search on the Youtube app and it worked.

Please help me know how this voice search flow works!
(My app is building on Reactjs)

Hi @Nguy_n_Huy_Phat , welcome to the Forum!

Unfortunately, this forum only for webOS Open Source Edition.
For webOS TV, please visit the TV Forum.