Propagate Remote Config updates in real time

Transcript

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6. functions.remoteConfig.onUpdate(versionMetadata => {});
7. exports.showConfigDiff = functions.remoteConfig.onUpdate(versionMetadata => { return admin.credential.applicationDefault().getAccessToken() .then(accessTokenObj => { return accessTokenObj.access_token; }) .then(accessToken => { const currentVersion = versionMetadata.versionNumber; const templatePromises = []; templatePromises.push(getTemplate(currentVersion, accessToken)); templatePromises.push(getTemplate(currentVersion - 1, accessToken)); return Promise.all(templatePromises); }) .then(results => { const currentTemplate = results[0]; const previousTemplate = results[1]; const diff = jsonDiff.diffString(previousTemplate, currentTemplate); console.log(diff); return null; }).catch(error => { console.error(error); return null; }); });
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9. extension AppDelegate : MessagingDelegate { func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) { Messaging.messaging().subscribe(toTopic: "PUSH_RC") { error in print("Subscribed to PUSH_RC topic") } } }
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11. import * as functions from 'firebase-functions'; import * as admin from ‘firebase-admin'; admin.initializeApp(); exports.pushConfig = functions.remoteConfig.onUpdate(versionMetadata => { // Create FCM payload to send data message to PUSH_RC topic. const payload: admin.messaging.MessagingPayload = { data: { 'CONFIG_STATE': ‘STALE' } }; const options: admin.messaging.MessagingOptions = { contentAvailable: true } // Use the Admin SDK to send the ping via FCM. return admin.messaging() .sendToTopic('PUSH_RC', payload, options) .then(resp => { console.log(resp); return null; }); });
12. { "aps" : { "content-available" : 1 }, }
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18. // Silent push notification func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { print("Entire message \(userInfo)") if let _ = userInfo["CONFIG_STATE"] as? String { UserDefaults.standard.set(true, forKey: "CONFIG_STALE") } completionHandler(.newData) }
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20. func fetchConfig() { welcomeLabel.text = remoteConfig[loadingPhraseConfigKey].stringValue var expirationDuration = 43200 if remoteConfig.configSettings.isDeveloperModeEnabled || UserDefaults.standard.bool(forKey: "CONFIG_STALE") { expirationDuration = 0 UserDefaults.standard.set(false, forKey: "CONFIG_STALE") } remoteConfig.fetch(withExpirationDuration: TimeInterval(expirationDuration)) { (status, error) -> Void in let alertAction: UIAlertAction = .init(title: "OK", style: .default, handler: nil) if status == .success { print("Config fetched!") self.remoteConfig.activateFetched() } else { print("Config not fetched") print("Error: \(error?.localizedDescription ?? "No error available.")") } self.displayWelcome() } }
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