💬 Flutter Chat App

A modern real-time chat application built using Flutter and Firebase. The app demonstrates how to build scalable mobile apps with authentication, cloud storage, push notifications, and real-time messaging.

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🚀 Features

• 🔐 User Authentication

  • Sign up and login using Firebase Authentication
  • Email and password validation

• 👤 User Profiles

  • Upload profile image during registration
  • Images stored in Firebase Storage

• 💬 Real-Time Chat

  • Messages stored in Cloud Firestore
  • Real-time updates using Firestore streams

• 🧑‍🤝‍🧑 User Identification

  • Each message shows the sender's username and profile image

• 📱 Push Notifications

  • Firebase Cloud Messaging integration

• 🎨 Modern Chat UI

  • Chat bubbles
  • Avatar display
  • Clean and responsive design

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📱 Screenshots

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🏗 Architecture

Flutter UI
    │
    ▼
Firebase Authentication
    │
    ▼
Cloud Firestore (Real-time messages)
    │
    ▼
Firebase Storage (User images)
    │
    ▼
Firebase Cloud Messaging

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🛠 Tech Stack

Technology	Usage
Flutter	Cross-platform UI framework
Dart	Programming language
Firebase Authentication	User authentication
Cloud Firestore	Real-time database
Firebase Storage	Profile images storage
Firebase Messaging	Push notifications

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📦 Packages Used

firebase_core
firebase_auth
cloud_firestore
firebase_storage
firebase_messaging
image_picker

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⚙️ Installation

1️⃣ Clone the repository

git clone https://github.com/ahmad007sa/flutter-chat-app.git

2️⃣ Navigate to the project

cd flutter-chat-app

3️⃣ Install dependencies

flutter pub get

4️⃣ Configure Firebase

Add your Firebase configuration file:

android/app/google-services.json

5️⃣ Run the app

flutter run

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📊 Application Flow

1. User creates an account
2. Profile image uploaded to Firebase Storage
3. User data stored in Firestore
4. Messages stored in Firestore
5. Messages appear instantly for all users

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🎯 What I Learned

• Building real-time chat apps with Flutter
• Integrating Firebase Authentication
• Using Cloud Firestore streams
• Uploading images using Firebase Storage
• Implementing push notifications

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👨‍💻 Author

Developed by Ahmad as a Flutter learning project.

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⭐ Support

If you like this project, consider giving it a ⭐ on GitHub.

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📄 License

This project is licensed under the MIT License.