Fetch firebase remote config values on first login - firebase

Question

I'm trying to fetch remote config values on first login (and not only after minimumFetchIntervalMillis expires), this is what i do (pseudo):
yield firebaseConfig.setConfigSettings(15 mins)
yield firebaseConfig.setDefaults()
yield firebaseConfig.fetchAndActivate().then(print values)
But i do not get the correct config for the user, just the server default.
Is there a valid way to do that?
I was thinking about setting minimumFetchIntervalMillis to zero on first login and after config was fetched to set it to 15 mins but i'm not sure that's the best approach for this.
Any ideas?

Answer 1

Set the minimumFetchIntervalMillis to 0 for the initial retrieve request if you wish to fetch new configuration data immediately after logging in rather than waiting for the minimumFetchIntervalMillis duration to elapse. This can lead to more requests being sent to the server more often, which could harm the performance of app and raise server expenses.
firebaseConfig.settings.minimumFetchIntervalMillis = 0;
firebaseConfig.fetchAndActivate().then(() => {
console.log(firebaseConfig.getAll());
firebaseConfig.settings.minimumFetchIntervalMillis = 15 * 60 * 1000;
});
The above sample code retrieves the remote configuration with a minimumFetchIntervalMillis of 0, activates it, then outputs the values it has fetched. The minimumFetchIntervalMillis is 15 milliseconds after the initial fetch.