I am creating a browser game that allows players to fight monsters using Nodejs, Socket.io and Express. However I can't seem to figure out how to implement the turns of combat.

My train of thought and workflow is as follows:

• The player declares an attack on a monster (Client makes a Post request.) - Working

• The server get's the player's stats as well as the monster's. - Working

• The player selects his action and attacks, then it's the monster's turn and so on. - Can't figure this out

How would such a functionality be implemented?