Firebase dynamic link acting differently if generated on iOS (React Native) vs REST API - firebase

Question

We have a functionality to generate dynamic links to our app on iOS using React Native, which works perfectly (identifiable data redacted by replacing them with "our app"):
dynamicLinks().buildShortLink({
link: `https://our_app?referral=${referralCode}`,
domainUriPrefix: 'https://ourapp.page.link',
android: {
packageName: 'app.ourapp.mobile',
},
ios: {
appStoreId: 'XXX',
bundleId: 'app.ourapp.client',
},
navigation: {
forcedRedirectEnabled: true,
},
});
It correctly opens the app if installed, and App Store if not installed.
I need to implement the same functionality on web site, here's my code:
const payload = {
dynamicLinkInfo: {
link: `https://our_app.app?referral=${referralCode}`,
domainUriPrefix: 'https://ourapp.page.link',
androidInfo: {
androidPackageName: 'app.ourapp.mobile',
},
iosInfo: {
iosBundleId: 'XXX',
iosBundleId: 'app.ourapp.client',
},
navigationInfo: {
enableForcedRedirect: true,
},
}
};
// generate page link and redirect there
const result = await fetch('https://firebasedynamiclinks.googleapis.com/v1/shortLinks?key=OUR_API_KEY', {
method: 'post',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(payload)
});
It's the same (with parameter names from React Native changed to REST parameter names respectively, as documented at https://firebase.google.com/docs/reference/dynamic-links/link-shortener)
A link is generated, however when clicked, if the app isn't installed, the page link redirects our website instead of App Store.
When I debug both links using ?d=1 query string parameter, I can indeed notice the difference:
(left: in-app generated, correct. right: REST-generated, incorrect)
Why are these links, generated with the exact same parameters, behaving differently and how can I make the second one work exactly like the first one (redirect to App Store instead of our website)?

Answer 1

After examining closely I've found a typo:
While generating the link in the second example, I was mistakenly using the same key twice:
iosInfo: {
iosBundleId: 'XXX',
iosBundleId: 'app.ourapp.client',
},
Changed the first one to iosAppStoreId and it worked.