Async finding object by objectId not working, load failed

iOS
1

I am trying to find an object by it’s objectId.

This code works:

        let dataStore = backendless?.data.ofTable("Workouts")

But it throws an exception if the object does not exist.

So I am trying to use this

 dataStore?.find(byId: id, response: { (wo) in
            print(wo)
            workouts.append(Workout.fromDictToWorkout(wDict: wo! as! [String : Any]))
            }, error: { (error) in
                print(error!)
            })

But it just hangs and then returns this:
2017-08-23 16:00:17.885689-0400 PIT[19987:875840] TIC TCP Conn Failed [2:0x604000174580]: 3:-9802 Err(-9802)

2017-08-23 16:00:17.886198-0400 PIT[19987:875840] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)

2017-08-23 16:00:17.886375-0400 PIT[19987:875840] Task <882E0447-F399-40B1-975E-B160F5934638>.<0> HTTP load failed (error code: -1200 [3:-9802])

2017-08-23 16:00:17.886622-0400 PIT[19987:875842] NSURLConnection finished with error - code -1200

What is going on here? Is there a way to just handle the exception that the sync method throws? Why isn’t the async one working?

2

Hello,

You can catch errors from blocking/synchronous API calls using try/catch as shown in the documentation:
https://backendless.com/docs/ios/doc.html#shared_error_handling

As for the http-related error, are you using our Cloud service or perhaps a private installation of Backendless?

Regards,
Mark

3

Hi,

That try/ catch worked perfectly! Thank you so much for your speedy help.

And as for the http-related error, I am using your Cloud service.

4

It is still quite odd that you’re getting that error for the async call. The underlying networking mechanism in our library is the same between sync and async.

5

I just tried it again for fun and got the same thing:

 dataStore?.find(byId: ids, response: { (wo) in
                print(wo!)
            }, error: { (error) in
                print(error!)
            })

NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)

2017-08-23 16:46:45.451477-0400 PIT[20654:917222] Task <3B5AC8FF-CF21-4F1B-9712-CB9CCE541B52>.<0> HTTP load failed (error code: -1200 [3:-9802])

2017-08-23 16:46:45.451670-0400 PIT[20654:916812] NSURLConnection finished with error - code -1200

I am running Xcode 9 beta 6 if that means anything to you.

6

Sorry, I had a typo, I meant this

for id in ids {
            dataStore?.find(byId: id, response: { (wo) in
                print(wo!)
            }, error: { (error) in
                print(error!)
            })
}

2017-08-23 16:50:01.511139-0400 PIT[20770:919422] TIC TCP Conn Failed [2:0x60c00016b1c0]: 3:-9802 Err(-9802)

2017-08-23 16:50:01.511801-0400 PIT[20770:919422] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)

2017-08-23 16:50:01.511934-0400 PIT[20770:919422] Task <2F2B33A6-0ADD-4676-B859-E602DCA2BDB6>.<0> HTTP load failed (error code: -1200 [3:-9802])

2017-08-23 16:50:01.512112-0400 PIT[20770:919424] NSURLConnection finished with error - code -1200

7

Does it happen in the project you download and run by following the instructions from here: ?https://backendless.com/docs/ios/doc.html#quick_start_guide

8

Yes, that worked. I even tried shifting and tweaking things to be more like the way I have it and it still worked every time.

Very strange