registerAllFlagsListener does not work on iOS with secondaryMobileKeys

[emin93]

Describe the bug
When using registerAllFlagsListener with a non-default environment (secondaryMobileKeys), the updates are not being delivered. Switching back to the default environment fixes the issue and the updates are being delivered again.

This only happens on iOS, on Android it's working. And it does not happen when using registerFeatureFlagListener.

To reproduce

const client = new LDClient();
client.configure(
    {
        mobileKey: 'production-key',
        secondaryMobileKeys: { test: 'test-key' },
    },
    { key: 'test-user' }
);

client.registerAllFlagsListener('example-1', console.log); // This works
client.unregisterAllFlagsListener('example-1');

client.registerAllFlagsListener('example-2', console.log, 'test'); // This does not
client.unregisterAllFlagsListener('example-2', 'test');

Expected behavior
Updates are still delivered when switching to a non-default environment using registerAllFlagsListener.

SDK version
5.1.0

OS/platform
iOS Simulator + real device (iPhone 13 Pro Max)

[louis-launchdarkly]

Hello @emin93, thank you for reporting this issue. We will investigate the issue to understand why this is not working.

Filed Internally as 137002

[louis-launchdarkly]

Hello @emin93, we think we have fixed the issue in 6.1.0, can you try it out and let us know?

[gwhelanLD]

Hi @emin93,

We hope this fix has been working for you. I'll close out this issue for now as we haven't heard back, but feel free to reopen if you're still running into the issue.

Thanks,
@gwhelanLD

[emin93]

Hi @gwhelanLD @louis-launchdarkly,

Sorry for the very late reply. I tried it out now with the latest version (6.1.2) and can confirm that the issue is fixed.

Thank you 👍

[besabellacyrus]

Hi hello, just using the registerAllFlagsListener app crash on ios using react native , version 6.2.3

Thread 2 Crashed:: Dispatch queue: com.facebook.react.LaunchdarklyReactNativeClientQueue 0 libswiftCore.dylib 0x7ff80d789a78 closure #1 in closure #1 in closure #1 in _assertionFailure(_:_:file:line:flags:) + 456 1 libswiftCore.dylib 0x7ff80d78978b closure #1 in closure #1 in _assertionFailure(_:_:file:line:flags:) + 267 2 libswiftCore.dylib 0x7ff80d78957d closure #1 in _assertionFailure(_:_:file:line:flags:) + 333 3 libswiftCore.dylib 0x7ff80d7890f5 _assertionFailure(_:_:file:line:flags:) + 309 4 asdasd 0x10e380441 LaunchdarklyReactNativeClient.registerAllFlagsListener(_:environment:) + 545 (LaunchdarklyReactNativeClient.swift:297) 5 asdasd 0x10e3808b0 @objc LaunchdarklyReactNativeClient.registerAllFlagsListener(_:environment:) + 112 6 CoreFoundation 0x7ff80042f2fc __invoking___ + 140 7 CoreFoundation 0x7ff80042c529 -[NSInvocation invoke] + 305 8 CoreFoundation 0x7ff80042c7bc -[NSInvocation invokeWithTarget:] + 70 9 asdasasd 0x10dd62336 -[RCTModuleMethod invokeWithBridge:module:arguments:] + 2534 (RCTModuleMethod.mm:584) 10 asdasd 0x10dd667da facebook::react::invokeInner(RCTBridge*, RCTModuleData*, unsigned int, folly::dynamic const&, int, (anonymous namespace)::SchedulingContext) + 1402 (RCTNativeModule.mm:183) 11 asdasd 0x10dd6608c facebook::react::RCTNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_0::operator()() const + 156 (RCTNativeModule.mm:104) 12 asdasd 0x10dd65fe9 invocation function for block in facebook::react::RCTNativeModule::invoke(unsigned int, folly::dynamic&&, int) + 25 (RCTNativeModule.mm:95) 13 libdispatch.dylib 0x7ff80013b7fb _dispatch_call_block_and_release + 12 14 libdispatch.dylib 0x7ff80013ca3a _dispatch_client_callout + 8 15 libdispatch.dylib 0x7ff800144346 _dispatch_lane_serial_drain + 949 16 libdispatch.dylib 0x7ff800144fe3 _dispatch_lane_invoke + 400 17 libdispatch.dylib 0x7ff800151b46 _dispatch_workloop_worker_thread + 870 18 libsystem_pthread.dylib 0x7ff836172ce3 _pthread_wqthread + 326 19 libsystem_pthread.dylib 0x7ff836171c67 start_wqthread + 15