loading LocalDevice hit Unhandled Exception

[dennislean]

Issue:

On iOS, unable to get the device ID and client ID from the LocalDevice object due to unhandled exception when loading LocalDevice info.

Error Message:

Unhandled Exception: type '_Map<Object?, Object?>' is not a subtype of type 'String' in type cast

Exception throw from:

ably-flutter/example/lib/push_notifications/push_notification_service.dart

Line 111 in c4b8ed6

final localDevice = await _realtime.device();

Actual problem from:

ably-flutter/lib/src/platform/src/codec.dart

Line 799 in c4b8ed6

(recipient != null) ? Map<String, String>.from(recipient) : null,

More details:

This problem only happen on iOS due to the recipient contains object in the value.

{
    "state": null,
    "errorReason": null,
    "recipient": {
        "transportType": "apns",
        "apnsDeviceTokens": {
            "default": "xxxxxxxxxxxxx"
        }
    }
}

However, It is working fine on Android because the recipient is a simple Map<String, String>.

{
    "recipient": {
        "transportType": "fcm",
        "registrationToken": "xxxxxxx:xxxxxxx"
    }
}

Other Info:

Flutter: 3.13.5
Device: iPhone 11 (physical device), iOS 16.6.1
Editor: VS Code
Sample code: Ably example code from latest master branch (commit: c4b8ed6)

[dennislean]

Exception trace:

[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: type '_Map<Object?, Object?>' is not a subtype of type 'String' in type cast
#0      new LinkedHashMap.from.<anonymous closure> (dart:collection/linked_hash_map.dart:187:26)
#1      _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:625:13)
#2      new LinkedHashMap.from (dart:collection/linked_hash_map.dart:186:11)
#3      Codec._decodeDevicePushDetails (package:ably_flutter/src/platform/src/codec.dart:799:33)
#4      Codec._decodeDeviceDetails (package:ably_flutter/src/platform/src/codec.dart:783:13)
#5      Codec._decodeLocalDevice (package:ably_flutter/src/platform/src/codec.dart:809:24)
#6      _CodecPair.decode (package:ably_flutter/src/platform/src/codec.dart:51:21)
#7      Codec.readValueOfType (package:ably_flutter/src/platform/src/codec.dart:230:19)
#8      StandardMessageCodec.readValue (package:flutter/src/services/message_codecs.dart:478:12)
#9      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:645:27)
#10     MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:310:18)
<asynchronous suspension>
#11     Platform.invokePlatformMethod (package:ably_flutter/src/platform/src/platform.dart:52:14)
<asynchronous suspension>
#12     PlatformObject.invokeRequest (package:ably_flutter/src/platform/src/platform_object.dart:74:22)
<asynchronous suspension>
#13     PushNotificationService.getDevice (package:ably_flutter_example/push_notifications/push_notification_service.dart:111:27)
<asynchronous suspension>

[sync-by-unito]

➤ Automation for Jira commented:

The link to the corresponding Jira issue is https://ably.atlassian.net/browse/SDK-3919