Differences between websockets and long polling for turn based game server
I am writing a server for an iOS game. The game is turn-based and the only time the server needs to push information to the client is to notify of the opponent's move.
I am curious if anyone could comment on the performance and ease of implementation differences between using WebSockets and long polling. Also, if I used WebSockets, should I only use it to receive information and send POST requests for everything else, or should all communication be through the WebSocket?
Additionally, is there anything extra to consider between WebSockets and long polling if I am interested in also making a web client?