Wikimedia Product Infrastructure team/Push Notifications Infrastructure

Background
The Wikimedia product teams have a long-standing desire to leverage push notification technology to drive user engagement and retention. Initial use cases are mentioned in the TechCom RFC and revolve around forwarding Echo notifications as push notifications for the native apps. Product Infrastructure is working on designing and building a push notifications platform for Wikimedia.

Timeline
Q3 & Q4 of FY 2019-2020

Overview
This will consist of two software components:
 * a service for managing push notification subscriptions and processing notification requests, and
 * a MediaWiki extension (Extension:PushNotifications) for associating MediaWiki global user IDs with push subscriptions and forwarding Echo events to the push service.

Push notification service

 * Use existing FOSS project?
 * Node.js project?
 * TypeScript?
 * Is service-runner required?
 * Should we use service-template-node?
 * etc.

Links

 * TechCom RFC
 * Dependencies Questionnaire