Add parameter to Firebase Dynamic Links

Question

I want to let the user share a product from my app by clicking a button and sending other potential users links like

www.myapp.com/offer/123

there, \"123\"

Answer 1

You need to use long deep link to send parameters.

Example:

1) link for opening the app by google play testing url:

https://xx.page.link/?link=https://xx.com/invitation/?id=2&apn=com.xx.app&afl=https://play.google.com/apps/testing/com.xx.app

2) receving the parameter:

       FirebaseDynamicLinks.getInstance()
            .getDynamicLink(getIntent())
            .addOnSuccessListener(this, new OnSuccessListener<PendingDynamicLinkData>() {
                @Override
                public void onSuccess(PendingDynamicLinkData pendingDynamicLinkData) {
                    Uri deepLink = null;
                    if (pendingDynamicLinkData != null) {
                        deepLink = pendingDynamicLinkData.getLink();
                        String paramValue = deepLink.getQueryParameters("id").get(0)); // it will get "2" as a value
                    }

                }
            })
            .addOnFailureListener(this, new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w("Splash", "getDynamicLink:onFailure", e);
                }
            });

Answer 2

SHORT ANSWER: Using query parameters instead of path variables you could use the getQueryParameter method from the Uri object returned by pendingDynamicLinkData.getLink()

---

What i've been doing is using query parameters instead of path variables.

Instead of sending http://www.myapp.com/offer/123, i'm sending something like http://www.myapp.com/?offer=123

To add parameters dynamically i'm just concatenating strings: "http://www.myapp.com/?offer=" + myValue

This URL is in turn a query parameter of the dynamic link created in firebase:

String url = "https://YourDynamicLinkIdentifier.app.goo.gl/?link=https://myapp.com?offer=" 
+ myOfferVar 
+ "&apn=com.your.apn"; // << Dont forget to change this too

And this resulting URL is the one i send to the url shortener.

Then in the callback onSuccess(PendingDynamicLinkData pendingDynamicLinkData) call getLink() of pendingDynamicLinkData as you're already doing.

Now that you have a Uri object, you can easily get the parameter by calling the method getQueryParameter("offer").

if (pendingDynamicLinkData != null) {
     deepLink = pendingDynamicLinkData.getLink();
     String offerKey = deepLink.getQueryParameter("offer");

NOTE: In case you still prefer to use the path variable, you could get the last segment of the Uri path. See How to obtain the last path segment of an uri