var ably = new Ably.Realtime('1WChTA.mc0Biw:kNfiYG4KiPgmHHgH');
var channel = ably.channels.get('web-pal');

// Subscribe to messages on channel
channel.subscribe('greeting', function(message) {
  alert(message.data);
});

let ably = ARTRealtime(key: "1WChTA.mc0Biw:kNfiYG4KiPgmHHgH")
let channel = ably.channels.get("web-pal")

// Subscribe to messages on channel
channel.subscribe("greeting") { message in
  print("\(message.data)")
}

AblyRealtime ably = new AblyRealtime("1WChTA.mc0Biw:kNfiYG4KiPgmHHgH");
Channel channel = ably.channels.get("web-pal");

/* Subscribe to messages on channel */

MessageListener listener;
listener = new MessageListener() {
  @Override
  public void onMessage(Message message) {
    System.out.print(message.data);
  };
};
channel.subscribe("greeting", listener);

val exampleConstraints = DefaultResolutionConstraints(
  DefaultResolutionSet( // this constructor provides one Resolution for all states
      Resolution(
          accuracy = Accuracy.BALANCED,
          desiredInterval = 1000L,
          minimumDisplacement = 1.0
      )
  ),
  proximityThreshold = DefaultProximity(spatial = 1.0),
  batteryLevelThreshold = 10.0f,
  lowBatteryMultiplier = 2.0f
)