![]() Notifications can also be sent to the entire audience of the app. Sending a push notification to a specific push token While this doesn’t necessarily mean you will need a backend server you will certainly need a trusted environment in which to store the push tokens and call the notification gateways API. Users’ push tokens will therefore need to be collected and stored somewhere prior to sending users notifications. When it comes to push notifications the receiver’s ID is their push token. Server side requirementsĪny form of messaging involves a sender and a receiver and, in addition, the sender needs to know the receiver’s ID in order to locate them. Their format changes depending on the operating system but they look something like 03df25c845d460b.f99cc3edcb63a85ea2ef2. ![]() Push tokens are issued by the Apple or Google push notification gateways and allow delivering the messages only to the intended app-device combination. Push tokensĪ push token is a unique key that identifies an app installed in a specific device. We will need to configure both FCM and APNs credentials and call their APIs for our app to successfully deliver notifications. We don’t need to know more about these gateways but using them is the only way to deliver push notifications to our users. Both gateways are services that expose a Web API for sending push notifications to users through HTTP requests. Ultimately notifications reach users’ devices through push notification gateways: FCM (Firebase Cloud Messaging) for Android devices and APNs (Apple Push Notification service) for iOS devices. Regardless where you are at now this is all you need to know before implementing push notifications on your managed Expo app and how to do so in August 2021. You’ve had a look at the multiple options available and still you are unsure which one to go for. ![]() So the time has come for your brilliant Expo app to start delivering push notifications. First-class push notifications for Expo apps ![]()
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