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PingBox preview

PingBox

Mobile + Backend · Application · Development · 2026

End-to-end notification system — external services POST to a FastAPI backend, which dispatches push notifications via FCM to an Android client. A local rule engine on the device routes taps directly to the target app, URL, deep-link, or activity, bypassing the PingBox UI entirely. Backend runs on Docker Compose with PostgreSQL, Redis rate limiting, and JWT + API key auth.

kotlinandroidfastapidockerfirebase
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Notes

Full-stack notification relay from external services to Android devices with smart routing.

Architecture

Three-tier: external sources → FastAPI backend (PostgreSQL, Redis, JWT auth) → Firebase Cloud Messaging → Kotlin/Jetpack Compose Android client.

Highlights

  • Tapping a notification opens the target app directly, not PingBox — supports URLs, deep-links, package names, component names, and intent URIs
  • Rule engine with wildcard tag matching and priority ranking
  • Persistent local history via Room database
  • Backend containerized with Docker Compose (PostgreSQL 16, Redis 7, Nginx)
  • SHA-256 API key hashing, bcrypt passwords, Pydantic input validation