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Backend

A collection of 3 posts
Firebase

Using Firebase Auth claims with Swift, Kotlin and JavaScript

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 "Claim" is is
Apr 13, 2023 3 min read
Backend

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

Firebase cloud functions can be secured through various mechanisms supplied by Firebase with out-of-the-box features: 1. Functions can easily determine whether the user is being called by a user who has been authenticated by Firebase Auth 2. We can use Firebase App Check to ensure Functions can only be called
Apr 5, 2023 5 min read
Backend

Sending a Push Notification from a Firebase Function

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 notification to alert
Apr 4, 2023 4 min read
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