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Using Firebase Auth claims with Swift, Kotlin and JavaScript

Apr 13, 2023 · 4 min read · Backend JavaScript Swift Kotlin ·

Firebase Authentication supports built-in and custom user claims that allow us to conditionally expose functionality to users based on authorization groups. This post demonstrates the syntax to add custom claims in a Firebase backend, and read claims from mobile apps. What are Claims? In identity systems, a …

Adding an X-Auth-Key to a Firebase Function stored in Google Secret Manager

Apr 5, 2023 · 7 min read · Backend JavaScript Cloud Function ·

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Firebase cloud functions can be secured through various mechanisms supplied by Firebase with out-of-the-box features: Functions can easily determine whether the user is being called by a user who has been authenticated by Firebase Auth We can use Firebase App Check to ensure Functions can only be called from specific …

Sending a Push Notification from a Firebase Function

Apr 4, 2023 · 6 min read · Backend JavaScript Cloud Function ·

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An essential part of maintaining user engagement with mobile applications is sending push notifications at the appropriate time. Push notifications come in two flavors: Local push notifications: notifications scheduled by the app itself, based on internal events. For example, a simple timer app could schedule a push …