iOS and Google Firebase - How to do Notification Actions

Question

My Goal: Using Google Firebase Messaging, set up iOS Notification Actions

Resources Referenced:

• Action Notification Tutorial
• FCM - Message Format
• FCM - Message Format with Data
• FCM - Handling Messages on iOS
• iOS - Remote Notification Payload

Question:

I've looked through the above resources, but I still can't figure out how to set the category key for iOS, enabling notification actions. How do I do this?

Answer 1

Figured it out as I was writing the question, and a Google search didn't help me, so hopefully this will help someone else.

I found the answer in this document: FCM HTTP Protocol

In the "Notification payload support" section, the parameter click_action says it "Indicates the action associated with a user click on the notification. Corresponds to category in the APNs payload."

So click_action == aps.category