question

@Devendra

You can initialize a connection to the device without having to prompt for a pairing code each time. Anytime you successfully pair the device, the WebSocketCloverDeviceConfiguration onPairingSuccess callback will receive an authToken that can be consumed during the next pairing event (one-time use).

The default shelf life of a Clover Device Server authToken is 30 days, but can be configured in Secure Network Pay Display settings. The device will not prompt for a pairing code if an authToken is provided when initializing the config given that it is not expired or rejected for any other reason. If an authToken is not provided, onPairingCode will continue to trigger the on device prompt for a new code.

Example (remote-pay-java):

String authToken = Preferences.userNodeForPackage(ExamplePOS.class).get("AUTH_TOKEN", null);

config = new WebSocketCloverDeviceConfiguration(endpoint, APP_ID, trustStore, POS_NAME, DEVICE_NAME, authToken) {
    @Override
    public void onPairingCode(String pairingCode) {
        System.out.println("Enter pairing code on device: " + pairingCode);
    }

    @Override
    public void onPairingSuccess(String authToken) {
        Preferences.userNodeForPackage(ExamplePOS.class).put("AUTH_TOKEN", authToken);
        System.out.println("Pairing success");
    }
};

If you are looking to check whether or not a connection has already been established with a device, the retreiveDeviceStatus method can be used to send a message requesting the status of a device.

-- Justin