🔴 Let's Build a Full Stack Advanced Real time Chat App with REACT NATIVE (MERN) скачать в хорошем качестве

🔴 Let's Build a Full Stack Advanced Real time Chat App with REACT NATIVE (MERN)

🔴 Let's Build a Full Stack Advanced Real-Time Chat App with REACT NATIVE (MERN) 🧠 Description Welcome to another Full Stack Series! In this video, we’ll be building a real-time chat app from scratch using React Native + Node.js + MongoDB + Express + Socket.IO — a complete MERN stack project that includes OTP authentication, PIN verification, profile setup, and live messaging with typing indicators, reactions, and delivery statuses 🔥 Whether you're a React Native developer or a full-stack enthusiast, this tutorial will guide you through backend + frontend integration, real-time sockets, and secure JWT authentication — all in one project. ⚙️ Backend Features (Node.js, Express, MongoDB, Socket.IO) 1️⃣ Authentication & User Management OTP-based login (Twilio-like) PIN setup & verification JWT-based session management Profile completion 🧩 Key Files: routes/auth.js, models/User.js, middleware/auth.js 💡 Flow: User enters phone → Server sends OTP → Verify → Generate JWT → Store in frontend for secure API & socket authentication 2️⃣ Conversation Creation & Listing Create 1:1 private chats Fetch all user conversations with last message preview and timestamp sorting MongoDB $lookup aggregation for lastMessage population 🧩 Key Files: routes/chat.js, models/Conversation.js 3️⃣ Messaging & Real-Time Delivery Send and receive messages instantly Sent / Delivered / Read message status updates Messages persist in MongoDB Full Socket.IO event flow with acknowledgments 🧩 Key Files: routes/chat.js, models/Message.js, index.js (socket logic) ⚡ Flow: Frontend emits send_message → Server saves & broadcasts new_message → Read receipts handled via mark_read 4️⃣ User Status & Typing Indicators Online/Offline status tracking Last seen updates Typing indicators for conversations 🧩 Key Files: index.js (socket events: subscribe_status, typing) 💬 Realtime status updates via Socket.IO subscriptions 5️⃣ Message Reactions Add emoji reactions via long-press 🧩 Key Files: models/Message.js, socket event add_reaction 6️⃣ Security & Rate Limiting API & Socket authentication via JWT Rate limiting to prevent spam CORS configuration for cross-platform access Joi validation on payloads 📱 Frontend (React Native + Expo) OTP-based phone login Set & verify 4-digit PIN Profile setup with name, photo, and status Real-time chat UI (FlatList-based) Typing & read indicators Reactions and message status animations AsyncStorage caching for offline access 🧰 Tech Stack Frontend: React Native (Expo) Backend: Node.js + Express Database: MongoDB (Mongoose) Real-time: Socket.IO Auth: JWT Validation: Joi Storage: AsyncStorage 🚀 What You’ll Learn ✅ OTP-based Authentication (Phone login) ✅ PIN-based local security layer ✅ Full real-time messaging using Socket.IO ✅ MongoDB data modeling for chat apps ✅ Typing indicators & reactions ✅ Rate limiting, JWT auth, and socket middleware