Interact with the talks in interactive Avatar

Hi guys,

I want to use the interactive avatar to interact with my API. My api return videos according to the words I send as input. I want while the interactive avatar talks (to catch the text returned by the interactive avatar and send it to my api to display a video on the screen related to what the avatar is talking. How can I achieve this, do you have up and running code I can start with?

Thx

Steeve