EduConnect

Project Overview

EduConnect is a comprehensive mobile application 📱 designed to create an intuitive and efficient online learning environment. It showcases full-stack development capabilities, integrating a modern cross-platform mobile frontend with a scalable, secure backend infrastructure. 🔐

🛠️ Technologies Used:

• Frontend: Flutter (Dart)
• Backend: Node.js, Express.js
• Database: MongoDB Atlas ☁️
• ODM: Mongoose
• Authentication: JWT 🔑, bcryptjs
• Environment Management: dotenv
• HTTP Client: http package
• Local Storage: shared_preferences
• CORS Handling: cors middleware

🚀 Key Features & Technical Implementation:

🔐 Robust User Authentication & Authorization:

• Secure registration and login for "Student" and "Instructor" roles
• JWT-based token authentication with session management
• Password hashing with bcryptjs
• Protected routes with authentication middleware

📘 Dynamic Course Management:

• Instructors can manage course details (CRUD)
• Students browse/search courses and view details
• RESTful API endpoints: /api/courses

📝 Streamlined Course Enrollment:

• Students enroll and view enrolled courses
• Backend API endpoint: /api/enrollments

📤 Assignment Submission & Tracking:

• Submit text-based assignments
• Track submissions linked to courses

🧠 Interactive Quizzing Module:

• Instructors create quizzes with correct answers
• Students take quizzes with instant scoring
• Endpoints: /api/quizzes, /api/quiz-results

🏗️ Architectural Highlights:

• RESTful API design using Express.js
• Clean separation: routes, controllers, models, middleware
• Flutter structured with screens, widgets, api, models, utils
• Asynchronous handling with Future and async/await
• Cloud-based MongoDB Atlas for scalable storage
• Environment variables managed with dotenv

🐛 Challenges & Solutions:

• ❗ Null check operator issues in Dart fixed with null-aware operators
• 🔗 URI Malformation fixed via URL-encoding credentials
• 📁 .env errors resolved by ensuring correct file loading order
• 💥 JSON parsing errors handled with try-catch and improved logging

📺 Project Demo Video