Appendix 2: Server JSON format

{
    "positions": {
        "03ff01": "cameraBache", 
        "03ff00": "cameraLisi", 
        "03ff02": "cucina"
    }, 
    "devices": {
        "0c:f3:ee:04:2e:fe": "nerfgun", 
        "0c:f3:ee:04:2e:b4": "luca", 
        "0c:f3:ee:04:2e:5e": "chiara", 
        "0c:f3:ee:04:30:d5": "andrea"
    }, 
    "algorithm-interval": "5", 
    "DB_connection_params": {
        "host": "ds219130.mlab.com", 
        "password": "your_password", 
        "namespace": "your_namespace", 
        "user": "your_userName", 
        "port": "your_port"
    }, 
    "server-ip": "192.168.43.234", 
    "server-port": "8080", 
    "broker-ip": "192.168.43.234",
    "publish_topic": "update/stations", 
    "subscribe_topic": "update/sensors"
}

• positions: map <stationId, roomName>;
• devices: map <beaconMAC, userName>;
• algorithm-interval: time to wait before computing users current positions (secs);
• DB_connection_params: parameters for the connection to a MongoDB at ds219130.mlab.com;
• server-ip: IP address of the server;
• server-port: port of the server;
• broker-ip: IP address of the broker;
• publish_topic: topic to publish modifications to the tags;
• subscribe_topic: topic to subscribe to receive the RSSi from the stations.