Firebase Remote Config fetch doesn't update values from the Cloud

Question

I'm trying to set up Firebase Remote Config for my project. I added Firebase via the Assistant. I added values to the server values on Google Cloud Console:

I've created default values xml in res/xml

<defaultsMap>

<!-- Strings-->
<entry >
    <key>textView_send_text</key>
    <value >your phrase goes here.</value>
</entry>

</defaultsMap>

Thats my MainActivity:

final private FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();

protected void onCreate(Bundle savedInstanceState) {
    //..code..

    //fetch from Firebase
    fetchAll();
}

private void fetchAll(){
     final FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();

    FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
            .setDeveloperModeEnabled(BuildConfig.DEBUG)
            .build();
    mFirebaseRemoteConfig.setConfigSettings(configSettings);

    mFirebaseRemoteConfig.setDefaults(R.xml.defaults);

    mFirebaseRemoteConfig.fetch()
            .addOnCompleteListener(this, new OnCompleteListener<Void>() {
                @Override
                public void onComplete(@NonNull Task<Void> task) {
                    if(task.isSuccessful()){
                        Toast.makeText(MainActivity.this, "Fetch Succeeded",
                                Toast.LENGTH_SHORT).show();

                        mFirebaseRemoteConfig.activateFetched();
                    }else{
                        Toast.makeText(MainActivity.this, "Fetch Failed",
                                Toast.LENGTH_SHORT).show();
                    }

                    displayWelcomeMessage();

                }
            });





}

private void displayWelcomeMessage(){
    String welcomeMessage = mFirebaseRemoteConfig.getString("textView_send_text");

    Toast.makeText(this, welcomeMessage,
            Toast.LENGTH_SHORT).show();
}

Toast output:

So Toast gets the value from xml/defaults not from the Cloud. It'd be much appreciated if somebody found where I made a mistake.

Solution 1

For development testing, specify a cache expiration time of zero to force an immediate fetch:

mFirebaseRemoteConfig.fetch(0) // <- add the zero
        .addOnCompleteListener(this, new OnCompleteListener<Void>() {
            ...
        });

Solution 2

Some tips the helped to me:

• Don't forget to click "publish changes" in Firebase console after each value update
• Uninstall and install the App before checking (Firebase may not fetch immediately)
• Use mFirebaseRemoteConfig.fetch(0)

Solution 3

For what it worth I found that our firebase remote configs weren't downloading no matter what we tried - we are usually debugging while connected to a proxy (like Charles Proxy) and that was interrupting the firebase cloud update.

Once we connected to a non-proxied wifi connection we got the update.

You can also set your config to developer mode if running a debug build which will refresh values more often - but the proxy was our root problem.

FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
            .setDeveloperModeEnabled(BuildConfig.DEBUG)
            .build();

Solution 4

In Flutter, I just changed the value of minimumFetchInterval to const Duration(hours: 0). I manually added an message to firebase and here I just get it. Here is my code;

    await Firebase.initializeApp();
    RemoteConfig remoteConfig = RemoteConfig.instance;
    await remoteConfig.setConfigSettings(RemoteConfigSettings(
      fetchTimeout: const Duration(seconds: 10),
      minimumFetchInterval: const Duration(hours: 0),
    ));
    RemoteConfigValue(null, ValueSource.valueStatic);
    bool updated = await remoteConfig.fetchAndActivate();
    if (updated) {
      print("it is updated");
    } else {
      print("it is not updated");
    }
    print('my_message ${remoteConfig.getString('my_message')}');

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Comments

[j2emanue]

dont do it too many times or you'll have a exception. i recommend the emulator so you can switch a few times if you reach the throttle limit.

[CoolMind]

Though it solves a problem, after several launches an application stops getting OnCompleteListener events.

[flopshot]

Were you ever able to find a solution for remote config while proxying? We were already enabling developer mode.

[Arpit J.]

setDeveloperModeEnabled(boolean enabled) is deprecated now.

[NSExceptional]

Point 2 was the thing I was missing, worked like a charm on iOS

[4ntoine]

Reinstalling also worked for me. Can you please explain why reinstall is required? How can i make sure it is indeed updated without reinstall in production?

[Pavel Poley]

@4ntoine reinstall required when you testing your app, since you don't want to wait. remote config will be updated in production, but not immediately