Android cannot delete parse installation

Question

I use parse to handle push notification. Because I already have my own database, I use parse to store installation data only.(Not using ParseUser to login and logout in the app) When I logout my app, I would like to delete my installation.

ParseInstallation installation = ParseInstallation.getCurrentInstallation();
installation.deleteInBackground(new DeleteCallback() {
    @Override
    public void done(ParseException ex) {
        Log.d(TAG, "ParseInstallation deleteInBackground done");
        if (ex != null) {
            Log.e(TAG, "ParseInstallation deleteInBackground", ex);
        }
    }
});

Then I got the following error:

com.parse.ParseRequest$ParseRequestException: forbidden
        at com.parse.ParseRequest.newPermanentException(ParseRequest.java:391)
        at com.parse.ParseRESTCommand.onResponse(ParseRESTCommand.java:197)
        at com.parse.ParseRequest$3.then(ParseRequest.java:258)
        at com.parse.ParseRequest$3.then(ParseRequest.java:254)
        at bolts.Task$14.run(Task.java:796)
        at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
        at bolts.Task.completeAfterTask(Task.java:787)
        at bolts.Task.continueWithTask(Task.java:599)
        at bolts.Task.continueWithTask(Task.java:610)
        at bolts.Task$12.then(Task.java:702)
        at bolts.Task$12.then(Task.java:690)
        at bolts.Task$14.run(Task.java:796)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
        at java.lang.Thread.run(Thread.java:841)

Thanks!

Answer 1

I think you are trying to make a request with a user who doesn't have enough authorizathion to do it. Maybe, you are doing this request when the session is already destroyed(for logout),instead of doing it before destroying it.

Answer 2

You have to delete it from Cloud Code using master key.

In the android client:

                //clear the installation backend
            HashMap<String, String> params = new HashMap<>();
            String idToken = ParseInstallation.getCurrentInstallation().getInstallationId();
            params.put("installationId", idToken);
            ParseCloud.callFunctionInBackground("removeInstallation", params, new FunctionCallback<String>() {
                @Override
                public void done(String response, ParseException e) {
                    if (e == null) {
                        //clear the local chache
                        ParseEasyAccess.clearParse();
                    } else {
                        e.printStackTrace();
                    }
                }
            });

And then in the Cloud Code:

         Parse.Cloud.define("removeInstallation", function(request, response) {

         Parse.Cloud.useMasterKey();

         var installationId = request.params.installationId;

         var query = new Parse.Query(Parse.Installation);
         query.equalTo("installationId", installationId);

         query.find(function(installations) {
             installations[0].destroy().then(
                 function() {
                     response.success("Destroyed");
                 },
                 function() {
                     response.error("Failed");
                 });
         });

     });

And if you wish to also delete the cached Installation on your device, do the following:

1. Create a package named com.parse

2. Crate a class, like for example MyParseTools.

3. Make a static method liks so:

   public static void clearParseInstallation() {
   ParseInstallation.getCurrentInstallationController().clearFromDisk();
   ParseInstallation.getCurrentInstallationController().clearFromMemory();}