message.js

MessageModel = {
	"get": function (messageId, cb) {
		cb(err, messageObject)
	}
	"update": function(messageId, obj, cb) {
		cb(err, messageObject)
	}
	"getStars": function(count, from, to, cb) {
		cb(err, arrayOfStarredMessages)
	}
	"create": function(obj, cb) {
		cb(err, messageObject)
	}
	"getMessages": function(count, from, to, cb) {
		cb(err, arrayOfMessages)
	}
};

room.js

RoomModel = {
	"getAll": function (cb) {
		cb(err, arrayOfRooms)
	}
	"get": function (roomId, cb) {
		cb(err, roomObject)
	} 
	"update": function (roomId, obj, cb) {
		cb(err, roomObject)
	}
	"create": function(obj, cb) {
		cb(err, roomObject);
	}
	"addUser": function(userId, cb) {
		cb(err, userObject)
	}
	"removeUser": function(userId, cb) {
		cb(err, userObject)
	}
	"usersInRoom": function(cb) {
		cb(err, arrayOfUsersInRoom)
	}
};

user.js

UserModel = {
	"getAll": function (cb) {
		cb(err, arrayOfUsers)
	}
	"get": function (userId, cb) {
		cb(err, userObject)
	}
	"update": function(userId, obj, cb) {
		cb(err, userObject)
	}
	"create": function(obj, cb) {
		cb(err, userObject)
	}
};