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Aashutosh Poudel
Aashutosh Poudel

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Resources for learning about and debugging issues with delayed/undelivered push notifications sent via FCM/Firebase

#firebase #fcm #notes

Background:

  1. Why your chat notifications might go undelivered, & what you can do about it
  2. FCM Architectural Overview
  3. Reasons an FCM notification can be delayed
  4. Understanding FCM message, delivery priorities, quotas, limits
  5. Firebase FCM Usage Limits
  6. How to get better insight into push notification delivery
  7. Life of a message from FCM to the device

Tools, metrics and reports:

  1. Understanding message delivery: Message delivery reports, Aggregated delivery data via the FCM Data API and BigQuery data export
  2. Firebase push notifications troubleshooter
  3. Aggregated delivery data API
  4. More about aggregated delivery data API

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