Flutter Dynamic Links get added parameters

Question

So, I am currently using Flutter to develop an IOS-App and added Firebase. I am trying to use PayPal-Connect with the url_launcher package. As the PayPal-Connect link looks like this:

https://www.sandbox.paypal.com/connect?flowEntry=static&client_id=[<my_client_Id>]&scope=&redirect_uri=[<my_url>]

I am trying to use Firebase Dynamic Links for the redirect_uri to go back to the app and fetch the data I got from Pay-Pal as url parameters. The problem is that whenever I run this code:

Future<void> retrieveDynamicLink() async {
      final PendingDynamicLinkData data = await FirebaseDynamicLinks.instance.getInitialLink();
        final Uri deepLink = data?.link;

        if (deepLink != null) {
          print(deepLink);
          print(deepLink.queryParameters['code']);
        }
    }

The logs say:

flutter: https://domain.page.link/ppc
flutter: null

But I know from the Paypal-Connect Docs that they add a code=[<some_code>] parameter. But is the thing I plan to do even possible with Dynamic Links? Or Am I doing something completely wrong?

Just checkout the following answer to perform the dynamic links in flutter stackoverflow.com/questions/58481840/… — Jay Mungara
– Jay Mungara, Commented Dec 30, 2019 at 4:40
Yeah, I saw this one too. The problem is that I don't add the parameters but PayPal does it when it redirects to the dynamic link I passed in the url. So, I don't pass anything because I need PayPal to add a code so I can proceed the onboarding. As far as I understand in the answers you send, they want to pass arguments right away, aren't they? — laaasBIGL
– laaasBIGL, Commented Dec 30, 2019 at 6:45
No you have to pass the code yourself while generating dynamic link. — Jay Mungara
– Jay Mungara, Commented Dec 30, 2019 at 6:47
So I pass a random code or any empty one and when PayPal redirects it updates to the one from PayPal that I need? — laaasBIGL
– laaasBIGL, Commented Dec 30, 2019 at 6:51
Okay, I tried it out and it didn't work. Also the link has to be fixed because I have to add a specific URL to PayPal. — laaasBIGL
– laaasBIGL, Commented Dec 30, 2019 at 7:27

Omatt · Accepted Answer · 2022-01-17 17:06:19Z

0

Checking the implementation, it looks like you're trying to implement something similar to a reward referral use case. The reason why deepLink.queryParameters['code'] returns null is because there's no code parameter configured on the deep link of the Firebase Dynamic Link that has been handled.

To configure a query parameter for code, the deep link of your Dynamic Link should look something similar to https://example.com/?code={CODE}

answered Jan 17, 2022 at 17:06

Omatt

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