Why is Deep Link Web URL query is empty - ios

Question

Using Flutter and Firebase dynamic links, I am able to create a link. When it is clicked it opens the app but there is no link data, and no callbacks that a link was clicked is fired. Instead in the Xcode logs I get Deep Link Web URL query is empty Link is copied from the app into Notes, then clicked. Is there anything that I am missing, or what else can I check to get this working?
Firebase Deep Link Web URL query is empty - iOS
Checked this relevant post, but installing the required pod dependencies is not the solution as you can see below in the pod install logs.
Flutter Doctor
[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Mac OS X 10.15 19A582a, locale en-US)
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[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
[✓] Android Studio (version 3.5)
[✓] Android Studio (version 3.5)
[✓] IntelliJ IDEA Ultimate Edition (version 2019.1.4)
[!] IntelliJ IDEA Community Edition (version 2019.1.3)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.43.0)
[✓] Connected device (1 available)
! Doctor found issues in 2 categories.
Xcode logs
---- Firebase Dynamic Links diagnostic output start ----
Firebase Dynamic Links framework version 4.0.7
System information: OS iOS, OS version 13.3.1, model iPhone
Current date 2020-03-10 12:46:34 +0000
Device locale en-US (raw en_US), timezone America/Boise
Specified custom URL scheme is com.pitch.links and Info.plist contains such scheme in CFBundleURLTypes key.
AppID Prefix: XXXXXXXXXX, Team ID: XXXXXXXXXX, AppId Prefix equal to Team ID: YES
performDiagnostic completed successfully! No errors found.
---- Firebase Dynamic Links diagnostic output end ----
Runner[366:14705] 6.18.0 - [Firebase/Analytics][I-ACS800023] No pending snapshot to activate. SDK name: app_measurement
Runner[366:14754] 6.18.0 - [Firebase/Analytics][I-ACS800003] Registered an SDK that has already registered. Default flags will be overwritten. SDK name: app_measurement
Runner[366:14754] 6.18.0 - [Firebase/Analytics][I-ACS800023] No pending snapshot to activate. SDK name: app_measurement
Runner[366:14712] Connection 3: received failure notification
Runner[366:14712] Connection 3: failed to connect 12:8, reason -1
Runner[366:14712] Connection 3: encountered error(12:8)
Runner[366:14712] Task <03A1535D-FD13-4872-B14B-6673E202F028>.<2> HTTP load failed, 0/0 bytes (error code: -1003 [12:8])
Runner[366:14712] Task <03A1535D-FD13-4872-B14B-6673E202F028>.<2> finished with error [-1003] Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." UserInfo={NSUnderlyingError=0x282e21b30 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "(null)" UserInfo={_kCFStreamErrorCodeKey=8, _kCFStreamErrorDomainKey=12}}, NSErrorFailingURLStringKey=https://firebasedynamiclinks-ipv6.googleapis.com/v1/installAttribution?key= AIzaxxxxxxx_xxxxxxxxxx_xxxxxxxxxxxxxxxx, NSErrorFailingURLKey=https://firebasedynamiclinks-ipv6.googleapis.com/v1/installAttribution?key= AIzaxxxxxxx_xxxxxxxxxx_xxxxxxxxxxxxxxxx, _kCFStreamErrorDomainKey=12, _kCFStreamErrorCodeKey=8, NSLocalizedDescription=A server with the specified hostname could not be found.}
Runner[366:14505] [ProcessSuspension] 0x10e4e13b0 - ProcessAssertion::processAssertionWasInvalidated()
Runner[366:14505] [ProcessSuspension] 0x10e4e1410 - ProcessAssertion::processAssertionWasInvalidated()
Runner[366:14707] 6.18.0 - [Firebase/Analytics][I-ACS023012] Analytics collection enabled
Runner[366:14707] 6.18.0 - [Firebase/Analytics][I-ACS023001] Deep Link does not contain valid required params. URL params: {
dismiss = 1;
"is_weak_match" = 1;
}
Runner[366:14505] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service
Runner[366:14505] Could not signal service com.apple.WebKit.Networking: 113: Could not find specified service
Runner[366:14505] Returning local object of class NSString
Runner[366:14505] Can't end BackgroundTask: no background task exists with identifier 14 (0xe), or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.
Runner[366:15138] 6.18.0 - [Firebase/Analytics][I-ACS023000] Deep Link Web URL query is empty
apple-app-site-association
{"applinks":{"apps":[],"details":[{"appID":"XXXXXXXXXX.com.pitch.links","paths":["NOT /_/*","/*"]}]}}
applinks:pitchlink.page.link is listed as an Associated Domain
and URL Type with Identifier of Bundle ID and URL Schemes com.pitch.links has been added to the Info.plist
Flutter main.dart
import 'package:firebase_dynamic_links/firebase_dynamic_links.dart';
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Dynamic Links',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Dynamic Links'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
Uri dynamicUrl;
#override
void initState() {
super.initState();
this.initDynamicLinks();
}
void initDynamicLinks() async {
final DynamicLinkParameters parameters = DynamicLinkParameters(
uriPrefix: 'https://pitchlink.page.link',
link: Uri.parse('https://example.com/suffix?d=1'),
iosParameters: IosParameters(
bundleId: 'com.pitch.links',
minimumVersion: '0.0.1',
),
);
FirebaseDynamicLinks.instance.onLink(
onSuccess: (PendingDynamicLinkData dynamicLink) async {
final Uri deepLink = dynamicLink?.link;
print(deepLink.toString());
}, onError: (OnLinkErrorException e) async {
print('onLinkError');
print(e.message);
});
ShortDynamicLink link = await parameters.buildShortLink();
setState(() {
dynamicUrl = link.shortUrl;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'Dynamic Link:',
),
dynamicUrl != null
? SelectableText(
dynamicUrl.toString(),
)
: Container(),
],
),
),
);
}
}
pubspec.yaml
name: pitch_links
description: A new Flutter project.
version: 0.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
firebase_dynamic_links: ^0.5.0+11
firebase_analytics: ^5.0.11
cupertino_icons: ^0.1.2
dev_dependencies:
flutter_test:
sdk: flutter
flutter:
uses-material-design: true
pod install --clean-install --verbose
-> Using Firebase (6.18.0)
-> Using FirebaseAnalytics (6.3.0)
-> Using FirebaseAnalyticsInterop (1.5.0)
-> Using FirebaseCore (6.6.3)
-> Using FirebaseCoreDiagnostics (1.2.1)
-> Using FirebaseCoreDiagnosticsInterop (1.2.0)
-> Using FirebaseDynamicLinks (4.0.7)
-> Using FirebaseInstallations (1.1.0)
-> Using Flutter (1.0.0)
-> Using GoogleAppMeasurement (6.3.0)
-> Using GoogleDataTransport (4.0.1)
-> Using GoogleDataTransportCCTSupport (1.4.1)
-> Using GoogleUtilities (6.5.1)
-> Using PromisesObjC (1.2.8)
-> Using firebase_analytics (0.0.1)
-> Using firebase_dynamic_links (0.1.0)
-> Using nanopb (0.3.9011)

Answer 1

The solution that worked to fix my issue was to call await FirebaseDynamicLinks.instance.getInitialLink(); within initDynamicLinks() The same errors still appear in the Xcode logs, but I am able to parse out the link data.