Automatisch Chromecasten NPO1

Hi, I want to automatically cast a videostream to a chromecast with a flow. Does anybody know if this is possible?

I use the NPO-app (Free Dutch national tv-app) with iOS each morning. I need to navigate inside the app to cast a livestream of NPO1 to my Chromecast. Wondering if it is possible to automate this.

I already tried the above. Does it auto play at your tv? Because at mine it doesn’t.

Sorry did not try.