whatsapp clone

🟢 Whats App Clone – Chat & CAll Application 

WA Clone is a full-stack, cross-platform chat application built using Flutter and Firebase, mimicking the core functionalities of WhatsApp with enhancements. The project features real-time 1-on-1 and group messaging, voice/video calling, media sharing, user status updates(story), and secure authentication. Designed with, modular folder structure, and state management using Riverpod. Interactive UI with modern components

🚧 My Role : Mobile Developer (Full-Stack)

🧰 Tech Stack

• Frontend: Flutter

• Backend & Services:

  • Firebase (Firestore, Auth, Storage)

  • Zego (Voice/Video Calls, Single and Group)

• State Management: Riverpod

• Audio/Video & Media:

  • audioplayers, another_audio_recorder, video_player, image_picker

• UI/UX Enhancements:

  • flutter_screenutil, emoji_picker_flutter, story_view, cached_network_image

• Permissions & Contacts:

  • permission_handler, flutter_contacts, country_picker

📦 Features

🔐 Authentication

• Phone number login and OTP verification

• Google Sign-In (extendable)

• Firebase Auth integration

💬 Messaging

• Real-time text messaging using Firestore streams

• File sharing (images, documents)

• GIF messaging via Giphy

• Seen status and message reply preview

• Group chat support

• Send Image, Video Messages

🎙️ Media and Calls

• Voice and video calling using Agora(old) or Zego(latest codes)

• Video Call(Single or Group Channel) & Voice Call (Single or Group Channel)

• Call history management

🧑‍🤝‍🧑 User & Groups

• Contact list integration

• Group creation and messaging

• User profile setup with image uploads

📂 Project Architecture

Follows clean modular structure:

• features/ – domain-driven folders for auth, chat, call, status(story), etc.

• common/ – shared enums, repositories, widgets, and utils

• models/ – data models for chat, call, status, user, etc.

• config/ – third-party SDK configuration

• me/ – internal developer notes and research

Uses a controller–repository pattern for separation of concerns.

🧠 Notable Implementations

• Real-time updates using Firestore streams with ref.watch() and StreamBuilder

• Riverpod for scalable, testable state management.

• Implement Single Responsibility Purpose, Separation of Concerns

• Audio recording switchable between different packages for performance tuning

• Custom widgets for message cards, reply preview, and media rendering

• Optimized image handling using cached_network_image

This is a self-initiated project and the source code is not open-source or publicly accessible. However, if you're interested in hiring or collaborating, I'm open to discussing the architecture, development approach, and walking you through how I built it in a scheduled session.