workavia-mail-front/docs/adr/0057-ios-fcm-routing.md

57. iOS FCM routing

Date: 2024-12-05

Status

Accepted

Context

• Notification from FCM contains mutable-content: true
• Those notification will be transfered to Notification Service Extension (See here) whether the app is in background or foreground
• Due to the app is in foreground, no notification will be shown
• Due to NSE handle the data, FCM on Flutter side cannot handle it

Decision

• We check if the app is in foreground or not
  • If the app is in foreground, we will not modify the payload and route the payload to FCM foreground method channel
  • If the app is in background or terminated, we will keep the current implementation

Consequences

• Twake Mail iOS app will get latest updates when app is in foreground