Firebase remote config returns an object - firebase

Question

Trying to get Firebase remote config working. A remote config parameter "ab_placeholder_value" has been setup with a default value "abvertisement" in Firebase, published too.
React Native code:
remoteConfig().fetchAndActivate()
.then(fetchedRemotely => {
if (fetchedRemotely) {
console.log('Configs were retrieved from the backend and activated.')
} else {
console.log(
'No configs were fetched from the backend, and the local configs were already activated',
)
}
})
remoteConfig().fetch(0)
const val = remoteConfig().getValue('ab_placeholder_value')
console.log('The ab_placeholder_value: ')
console.log(val)
remoteConfig().fetch(1)
const all = remoteConfig().getAll()
console.log('All values: ')
console.log(all)
Output:
LOG The ab_placeholder_value:
LOG {"_source": "default", "_value": "disabled"}
LOG All values:
LOG {"ab_placeholder_value": {"_source": "default", "_value": "disabled"}}
LOG Configs were retrieved from the backend and activated.
Looks like the app is talking with the Firebase server, since the parameter name "ab_placeholder_value" has been retrieved. But why is the parameter value an object: {"_source": "default", "_value": "disabled"}?
How can I get the value set in Firebase remote config? Any help is appreciated!

Answer 1

remoteConfig().fetchAndActivate() returns an object. You can access values of it in your case by using ._value:
const val = remoteConfig().getValue('ab_placeholder_value')._value;
console.log('The ab_placeholder_value: ')
console.log(val)
I initially run everything through a function to create a remoteConfigValues object and then access values stored in that object throughout the code to make things a bit more readable:
remoteConfig.fetchAndActivate()
.then(() => {
remoteConfigAllObj = remoteConfig.getAll();
var remoteConfigValues = {};
for (let key in remoteConfigAllObj){
remoteConfigValues[key] = remoteConfigAllObj[key]._value;
}
})
The values from the remoteConfig object then become available using the dot notation from the created remoteConfigValues object.
console.log(remoteConfigValues.ab_placeholder_value);
NOTE – In my case I load the remoteConfig before app initialization at startup. The remoteConfigValues object will therefore contain whatever is activated at that time, so it may be a mix of values from static, remote, and default variables. If you want to know where the values came from originally, you'll find that information under remoteConfigAllObj[key]._source for each key in the remoteConfigAllObj that you gathered in the beginning.