Passing parameters in firebase dynamic link not working

Question

I am new to firebase. I was using an old version code where the parameters i put were atleast working for the url. but now when link is clicked, the browser opens and its a 400 error that requested url was not found. it works with only the dynamic link

 button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Uri BASE_URI = Uri.parse("http://example.com/"); Uri APP_URI = BASE_URI.buildUpon(). appendQueryParameter("extra1", "value").build(); String encodedUri = null; try { encodedUri = URLEncoder.encode(APP_URI.toString(), "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } Log.v("ENCODED URI: ", encodedUri); Uri deepLink = Uri.parse("https://eh62u.app.goo.gl/y6N7/?link="+encodedUri); Intent intent = new Intent(Intent.ACTION_SEND); intent.setType("text/plain"); intent.putExtra(Intent.EXTRA_EMAIL, ""); intent.putExtra(Intent.EXTRA_SUBJECT, "GET TICKETS" ); intent.putExtra(Intent.EXTRA_TEXT, "Click here to get the booked tickets: " + deepLink); startActivity(Intent.createChooser(intent, "Send Email")); } }); }

Main Activity OnCreate code:

setContentView(R.layout.activity_main); button = (Button) findViewById(R.id.button); FirebaseDynamicLinks.getInstance().getDynamicLink(getIntent()) .addOnSuccessListener(this, new OnSuccessListener<PendingDynamicLinkData>() { @Override public void onSuccess(PendingDynamicLinkData data) { if (data == null) { Log.d("NULL DATA ", "getInvitation: no data"); return; } // Get the deep link Uri deepLink = data.getLink(); String requestId2 = deepLink.getQueryParameter("extra1"); // Handle the deep link // [START_EXCLUDE] Log.d("DEEP LINK URL ", "deepLink:" + deepLink); if (deepLink != null) { if(requestId2 == "value") { Intent intent = new Intent(getApplicationContext(), Main2Activity.class); startActivity(intent); } } // [END_EXCLUDE] } }) .addOnFailureListener(this, new OnFailureListener() { @Override public void onFailure(@NonNull Exception e) { Log.w("onFailure: ", "getDynamicLink:onFailure", e); } });

Android Manifest Code:

 <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> <intent-filter> <action android:name="android.intent.action.VIEW"/> <category android:name="android.intent.category.DEFAULT"/> <category android:name="android.intent.category.BROWSABLE"/> <data android:host="example.com" android:scheme="https"/> </intent-filter> </activity> <activity android:name=".Main2Activity"> </activity> </application>

how do i put the parameter and then get it in the onSuccess? Thanks

Try creating link with builder in console or by code: firebase.google.com/docs/dynamic-links/android/create — Dmytro Rostopira
– Dmytro Rostopira, Commented Oct 16, 2017 at 8:25
@DimaRostopira this says that in android the parameters are only minimum app version and fallback url. but i want to add a sort of key with a string value so that i can use it when the app is opened — L3G3NDj
– L3G3NDj, Commented Oct 16, 2017 at 8:32
Does it required for you to use params? Can't you use it like https://example.com/value1/value2? — Dmytro Rostopira
– Dmytro Rostopira, Commented Oct 16, 2017 at 8:33
@DimaRostopira i dont know if that will work but then how will i get "value1" or "value2" when the app is opened? — L3G3NDj
– L3G3NDj, Commented Oct 16, 2017 at 8:36

L3G3NDj · Accepted Answer · 2017-10-17 15:00:33Z

The problem that i finally figured out by trial and error was the encoding part of the code. When i removed the :

encodedUri = URLEncoder.encode(APP_URI.toString(), "UTF-8");

part and just passed APP_URI to the deep link like

Uri deepLink = Uri.parse("https://eh62u.app.goo.gl/y6N7/?link="+APP_URI);

or even constructing the link using builder as:

Uri.Builder URLbuilder = new Uri.Builder() .scheme("https") .authority(Constants.DOMAIN) .path("/") .appendQueryParameter("link", getBaseUri(value)) .appendQueryParameter("apn", context.getPackageName());

It worked. No Problems. Retrieving the parameter was the usual.

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