feat: implement EduScale online learning platform MVP by Copilot · Pull Request #1 · Gabru44/Edus

Copilot · 2026-04-16T13:23:03Z

Builds the EduScale full-stack online learning platform from scratch — the repo previously contained only a blank README. Covers all three phases: user auth + course CRUD + video streaming (Phase 1), assignments/grading + discussions + progress tracking (Phase 2), and PDF certificates + quiz auto-grading (Phase 3).

Backend — Node.js + Express + SQLite (`/backend`)

Auth: JWT register/login/me, bcrypt (10 rounds), rate limiting (30 req/15min on auth, 300 on all routes), admin role requires direct DB promotion
15-table schema: users, courses, sections, enrollments, videos, assignments, submissions, discussions, discussion_replies, announcements, progress, certificates, quizzes, quiz_questions, quiz_attempts
11 route modules:
- courses — CRUD + sections, search/category filter, draft/published lifecycle
- videos — multipart upload via multer, HTTP Range streaming, per-user progress tracking
- assignments — create/submit/grade with file attachment support
- quizzes — question bank, auto-graded attempt scoring
- certificates — PDF generation (pdfkit) gated on 100% course completion
- admin — user list, role management, platform stats

Frontend — React 18 + Vite (`/frontend`)

10 pages: Home (catalog + search), Login, Register, CourseDetail (content/announcements/discussions tabs), VideoPlayer, StudentDashboard, InstructorDashboard, AdminDashboard, Certificates
AuthContext persists JWT in localStorage; Axios interceptor injects Authorization header globally
Responsive CSS with custom properties (indigo theme), progress bars, card layouts

Security

multer pinned to 2.1.1 (was 1.4.5-lts.2) — resolves 7 DoS CVEs (uncontrolled recursion, resource exhaustion, unclosed stream leaks, malformed request handling)
No hardcoded JWT secret — throws at startup if JWT_SECRET env var is absent

Screenshots

Course Catalog

Instructor Dashboard

Course Detail

Student Dashboard

Original prompt

EduScale College Project — AI Coding Plan

Project Overview

EduScale: online learning platform for college project.
Target scale: 1000 students, 10 instructors, 10,000 video views/month.
Goal: MVP fully functional on local machine.

Features

Udemy: Instructor marketplace, paid/free courses, video streaming, reviews

edX: Structured programs, certificates

Moodle: Course management, assignment submission, grading rubrics, attendance

Canvas: Discussion boards, announcements, SpeedGrader-style grading, calendar

YouTube: Adaptive video streaming, subtitles, playback speed, progress tracking

Zoom: Live classes, virtual classrooms

Actors

Student: browse, enroll, watch videos, submit assignments, discussions

Instructor: create courses, upload videos, grade

Admin: manage content, analytics

Institution: manage users

Guest: browse catalog, preview courses

Functional Requirements

User management: register/login (email/OAuth), profiles, roles

Course management: CRUD courses, sections, lectures, quizzes, assignments

Video streaming: upload → transcode → HLS, resume playback, subtitles, playback speed

Assignments & grading: submission, auto-graded quizzes, instructor grading

Communication: discussion boards, announcements, notifications, Zoom integration

Progress & certificates: track completion, PDF certificates

Search & discovery: search by title, instructor, category

Non-Functional Requirements

Availability: 99%

API latency: <500ms

Video latency: <5s

Storage: ~50GB

Consistency: strong for grades/payments, eventual for notifications

Security: hashed passwords, JWT auth, input validation

Database (Simplified)

Users(id, name, email, password, role)

Courses(id, instructor_id, title, description, status)

Enrollments(id, user_id, course_id, progress)

Videos(id, course_id, title, file_path, duration)

Assignments(id, course_id, title, due_date)

API Endpoints

POST /register

POST /login

GET /courses

POST /courses (Instructor)

POST /videos/upload

GET /videos/:id

POST /enrollments

GET /assignments/:course_id

POST /assignments/:id/submit

Deployment (Local)

Install Node.js, Python, SQLite/PostgreSQL, React

Clone repository

Setup DB: run schema.sql

Run backend: node server.js / python app.py

Run frontend: npm start

Access: http://localhost:3000

Store sample videos locally

Integrate Zoom SDK/API for live classes

Incremental Build Plan

Phase 1 (MVP): user login, course CRUD, video upload/streaming, enrollment
Phase 2: assignments submission/grading, discussion boards, announcements, progress tracking
Phase 3: certificates (PDF), basic search, Zoom live classes integration

- Backend: Node.js + Express + SQLite (better-sqlite3) - JWT auth with bcryptjs (register, login, /me) - Courses CRUD with search/category filter - Video upload and Range-request streaming - Enrollment management with progress tracking - Assignments with file submission and grading - Discussion threads with replies - Announcements per course - Quizzes with auto-grading - PDF certificate generation (pdfkit + uuid) - Admin dashboard (user management, stats) - Multer for file uploads (videos + files) - Frontend: React 18 + Vite + React Router v6 - AuthContext with localStorage JWT persistence - Axios instance with auth interceptor - Home: course catalog with search/filter - Login & Register (with role selection) - CourseDetail: sections, videos, discussions, announcements tabs - VideoPlayer: HTML5 video, Range streaming, progress tracking, speed control - StudentDashboard: enrollments + progress bars + upcoming assignments - InstructorDashboard: course/section/video/assignment/quiz management - AdminDashboard: user table with role changes + stats - Certificates: list and download PDF certificates - Responsive CSS with CSS variables (indigo theme) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

- Auth endpoints (login/register): 30 req/15min - All other API endpoints: 300 req/15min - Uses express-rate-limit with standardHeaders Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

- Remove hardcoded JWT_SECRET fallback; require env var in both auth.js and middleware/auth.js - Fix potential ReDoS in email validation; replace regex with safe indexOf-based check - Add named constants MAX_VIDEO_SIZE_BYTES and MAX_ASSIGNMENT_FILE_SIZE_BYTES - Add error logging in VideoPlayer saveProgress catch block - Add error logging in InstructorDashboard fetchCourses catch block Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

Agent-Logs-Url: https://github.com/Gabru44/Edus/sessions/3cc0ab1b-7a12-4358-8e13-9bc049280552 Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

Initial plan

dc9cba2

Copilot AI assigned Copilot and Gabru44 Apr 16, 2026

Copilot started work on behalf of Gabru44 April 16, 2026 13:23 View session

Copilot AI and others added 8 commits April 16, 2026 13:41

chore: remove db wal files from tracking

e042dcc

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

style: improve variable names in isValidEmail function

13a32e8

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

feat: implement EduScale online learning platform MVP

deb413f

Agent-Logs-Url: https://github.com/Gabru44/Edus/sessions/3cc0ab1b-7a12-4358-8e13-9bc049280552 Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

chore: exclude SQLite WAL files from git tracking

08675f1

Agent-Logs-Url: https://github.com/Gabru44/Edus/sessions/3cc0ab1b-7a12-4358-8e13-9bc049280552 Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

fix: upgrade multer to 2.1.1 to resolve DoS vulnerabilities

f947ce1

Agent-Logs-Url: https://github.com/Gabru44/Edus/sessions/3cc0ab1b-7a12-4358-8e13-9bc049280552 Co-authored-by: Gabru44 <150784667+Gabru44@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Add user management features for EduScale project~~ feat: implement EduScale online learning platform MVP Apr 16, 2026

Copilot AI requested a review from Gabru44 April 16, 2026 14:04

Copilot finished work on behalf of Gabru44 April 16, 2026 14:04

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feat: implement EduScale online learning platform MVP#1

feat: implement EduScale online learning platform MVP#1
Gabru44 with Copilot wants to merge 9 commits into
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copilot/add-user-management-features

Copilot AI commented Apr 16, 2026 •

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Copilot AI commented Apr 16, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Backend — Node.js + Express + SQLite (/backend)

Frontend — React 18 + Vite (/frontend)

Security

Screenshots

Course Catalog

Instructor Dashboard

Course Detail

Student Dashboard

EduScale College Project — AI Coding Plan

Project Overview

Features

Actors

Functional Requirements

Non-Functional Requirements

Database (Simplified)

API Endpoints

Deployment (Local)

Incremental Build Plan

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Copilot AI commented Apr 16, 2026 •

edited

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Backend — Node.js + Express + SQLite (`/backend`)

Frontend — React 18 + Vite (`/frontend`)