Скачать или смотреть 03. Adding Firebase FCM in Android - Incoming Call Notification Using Firebase FCM

Incoming Call Notifications with WebRTC, Node.js & Android (FCM Integration)

Welcome to this tutorial series where we build a *real-time video calling app* with *WebRTC**, enhanced by **Firebase Cloud Messaging (FCM)* for *incoming call notifications* on Android.

This series focuses on integrating *push notifications* into the *Node.js backend* and **Android client**, so users can receive and accept calls even when the app is closed or running in the background.

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📂 Source Code Repositories

✅ Backend (Node.js + WebSocket + Firebase Integration):
🔗 [GitHub Repository](https://github.com/codewithkael/Simpl...)

✅ Android Client (Kotlin & Jetpack Compose + Push Notifications):
🔗 [GitHub Repository](https://github.com/codewithkael/Andro...)

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🎯 What You’ll Learn in This Tutorial

🔹 Firebase Cloud Messaging (FCM) – Setting up push notifications for Android.
🔹 Backend Token Management – Uploading and storing user Firebase tokens via query params.
🔹 Node.js Notification Flow – Sending notifications when a user is offline.
🔹 Android Push Notification Handling – Displaying incoming call alerts with Jetpack Compose.
🔹 Call Acceptance Flow – Transitioning from notification → app → live video call.
🔹 WebRTC Integration – Connecting peers once the call is accepted.

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✨ Key Features of This Project

✅ Incoming Call Notifications – Users get notified instantly when someone calls.
✅ Offline User Support – Backend triggers FCM when the user is disconnected.
✅ Modern Android UI – Built with Jetpack Compose.
✅ Scalable Backend – Node.js + WebSocket + Firebase integration.
✅ Seamless Call Flow – From push notification to live video call.

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🚀 By the End of This Tutorial, You’ll Be Able To:

✅ Integrate *Firebase Cloud Messaging* into your Android app.
✅ Configure a *Node.js backend* to send push notifications.
✅ Handle *incoming call notifications* in Android.
✅ Build a *complete call flow* with WebRTC + FCM.

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#WebRTC #AndroidDevelopment #Kotlin #JetpackCompose #NodeJS #WebSockets #Firebase #PushNotifications #VideoCallingApp #RealTimeCommunication #CodeWithKael