My landlord has a camera pointing at my door and records who comes to my home, he is trying to evict me for having too much traffic is that legal?

This is going to depend on the language of the lease. While he can't record inside your premises, recording the door itself is likely permissible. If he has language in the lease about excessive guests then he may be able to begin an eviction. It is more likely that he is attempting to establish that there are other people living there, which would likely be a breach of the lease.