App Link URL for Facebook App Invite

I want to generate App Link URL for my Facebook game app so players can send game invitation for all their friends.

After referencing Facebook SDK, I have this kind of code:

In above AppInvite function, first parameter require App Link URL so that I was trying to generate from last 2 days.

For this purpose, I gone through multiple posts like these:

what is AppLink URL in FB.Mobile.AppInvite in Facebook SDK for Unity? and how to get it? or make it?

‘Missing app link URL’ on Facebook app invite

But I can’t able to get success in this because I can’t able to generate App Link URL. So please give me some help for this so I can move ahead…

I got same question. Does anyone know that?,I got same question.Does anyone know that?