Remote Configuration

Retrieve configurations on demand

String COTA_get = "{" + "  \"id\": 123," + "  \"version\": \"1.0\"," +
        "  \"params\": {" + "\"configScope\": \"product\"," + "\"getType\": \"file\"" +
        "  }," + "  \"method\": \"thing.config.get\"" + "}";

RequestModel<Map> requestModel = JSONObject.parseObject(COTA_get, new TypeReference<RequestModel<Map>>() {
    }.getType());
LinkKit.getInstance().getDeviceCOTA().COTAGet(requestModel, new IConnectSendListener() {
    @Override
    public void onResponse(ARequest aRequest, AResponse aResponse) {
        // Successfully retrieved the remote configuration.
    }

    @Override
    public void onFailure(ARequest aRequest, AError aError) {
        // Failed to retrieve the remote configuration.
    }
});
            

Retrieve configurations by subscription

Devices can retrieve remote configuration information using subscriptions.

// Note: The cloud limits COTA updates for all product categories to once per hour.
LinkKit.getInstance().getDeviceCOTA().setCOTAChangeListener(new IConnectRrpcListener() {
    @Override
    public void onSubscribeSuccess(ARequest aRequest) {
        // The subscription is successful.
    }

    @Override
    public void onSubscribeFailed(ARequest aRequest, AError aError) {
        // The subscription failed.
    }

    @Override
    public void onReceived(ARequest aRequest, IConnectRrpcHandle iConnectRrpcHandle) {
        // Received downstream data for the remote configuration.    
        if (aRequest instanceof MqttRrpcRequest){
            // Downstream data from the cloud. For a sample of the returned data, see the demo.
            // ((MqttRrpcRequest) aRequest).payloadObj;
        }
    }

    @Override
    public void onResponseSuccess(ARequest aRequest) {
        // Successfully responded to the remote configuration.
    }

    @Override
    public void onResponseFailed(ARequest aRequest, AError aError) {
        // Failed to respond to the remote configuration.
    }
});