Fitbit Subscription Create And Remove Using Java Code

@GET
@Path("/notifications")
public Response getFitBitNotification(@PathParam("version") String version,@QueryParam("verify") String verify) throws DemoException {

logger.info("<------ inside fitbit notification verify ------>");
if(verify.equals(fitBitEndPointVerificationCode))
{
logger.info("<------ fitbit subscription verify success------>");
return Response.status(Status.NO_CONTENT).build();
}
logger.info("<------ fitbit subscription verify not applied------>");
return Response.status(Status.NOT_FOUND).build();
}

You need to put your fitBitEndPointVerificationCode which you copied from Fitbit verification screen. This method will basically return with no content status code.

@POST
@Path("/notifications")
public Response getFitBitNotificationData(@Context HttpServletRequest request,@PathParam("version") String version,List notificationList) throws MangoMirrorException
{
logger.info("<------inside fitbit notification data ------>");
ExecutorService executor = Executors.newFixedThreadPool(2);
Runnable taskOne = new FitbitDataThread(notificationList);
executor.execute(taskOne);
return Response.status(Status.NO_CONTENT).build();
}

And this post method we use to get continuous updates from Fitbit if any value changes. Basically Fitbit services will call this API if any changes are done within Fitbit account data or profile. So this method will start working when we create a subscription for a particular user. Which we will do in the next step. Here is an above method I used FitBitNotificationModel which is used to get Fitbit data in a custom model.

public class FitBitNotificationModel {

private String collectionType;
private String ownerId;
private String ownerType;
private String subscriberId;
private String subscriptionId;
private String date;

//setter and getter of the above variable
}

you can click on verify button on Fitbit to verify your subscriber Id. Within a minute your verification will be completed and you can check it on the same page “Verify” button will be removed from there and verified the time you can see there.

Step- 3:

Now we will see how we can create a subscription on Fitbit for a particular user. So that we can continuously receive his/her account updates asynchronously. Basically you need to create subscription by unique subscriptionId. So when user will provide access token and secret token to your app that time only you need to create its subscription.

Void createSubscription(String FitbitAccessToken)
{
HttpHeaders headers = new HttpHeaders();
headers.set("X-Fitbit-Subscriber-Id", fitBitSubscriberId);
headers.set("Authorization", "Bearer " +FitbitAccessToken);
HttpEntity entity = new HttpEntity<>(headers);
String subscriptionUrl = “fitbit”
restTemplate.exchange(subscriptionUrl, HttpMethod.POST, entity, String.class);
}

1. https://api.fitbit.com/1/user/-/activities/apiSubscriptions/1.json
2. https://api.fitbit.com/1/user/-/foods/apiSubscriptions/1.json
3. https://api.fitbit.com/1/user/-/sleep/apiSubscriptions/1.json
4. https://api.fitbit.com/1/user/-/body/apiSubscriptions/1.json

Void removeSubscription(String FitbitAccessToken)
{
HttpHeaders headers = new HttpHeaders();
headers.set("X-Fitbit-Subscriber-Id", fitBitSubscriberId);
headers.set("Authorization", "Bearer " +FitbitAccessToken);
HttpEntity entity = new HttpEntity<>(headers);
String subscriptionUrl = “fitbit”
restTemplate.exchange(subscriptionUrl, HttpMethod.DELETE, entity, String.class);
}