feat: add recommended courses and quiz multiple attempts

- Add is_recommended field to Course model
- Add allow_multiple_attempts field to Quiz model
- Create RecommendedCoursesController for admin management
  - List all approved courses
  - Get course by ID
  - Toggle recommendation status
- Add is_recommended filter to CoursesService.ListCourses
- Add allow_multiple_attempts to quiz update and response types
- Update ChaptersLessonService.updateQuiz to support allow_multiple_attempts
This commit is contained in:
JakkrapartXD 2026-02-11 13:49:43 +07:00
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---
description: How to create a new API endpoint
---
# Create API Endpoint Workflow
Follow these steps to create a new API endpoint for the E-Learning Platform backend using TypeScript and TSOA.
---
## Step 1: Define Route with TSOA Controller
Create or update controller file in `src/controllers/`:
```typescript
// src/controllers/course.controller.ts
import { Request, Response } from 'express';
import {
Controller,
Get,
Post,
Put,
Delete,
Route,
Tags,
Security,
Body,
Path,
Query,
SuccessResponse
} from 'tsoa';
import { courseService } from '../services/course.service';
import { CreateCourseDto, UpdateCourseDto, CourseListQuery } from '../types/course.types';
@Route('api/courses')
@Tags('Courses')
export class CourseController extends Controller {
/**
* Get list of courses
* @summary List all approved courses
*/
@Get('/')
@SuccessResponse(200, 'Success')
public async list(
@Query() page: number = 1,
@Query() limit: number = 20,
@Query() category?: number,
@Query() search?: string
): Promise<{
data: any[];
pagination: {
page: number;
limit: number;
total: number;
totalPages: number;
};
}> {
const result = await courseService.list({
page: parseInt(page.toString()),
limit: parseInt(limit.toString()),
category: category ? parseInt(category.toString()) : undefined,
search
});
return result;
}
/**
* Get course by ID
* @summary Get course details
*/
@Get('{id}')
@SuccessResponse(200, 'Success')
public async getById(@Path() id: number): Promise<any> {
const course = await courseService.getById(parseInt(id.toString()));
if (!course) {
this.setStatus(404);
throw new Error('Course not found');
}
return course;
}
/**
* Create a new course
* @summary Create course (Instructor/Admin only)
*/
@Post('/')
@Security('jwt', ['INSTRUCTOR', 'ADMIN'])
@SuccessResponse(201, 'Created')
public async create(
@Body() body: CreateCourseDto,
@Request() req: any
): Promise<any> {
const course = await courseService.create(body, req.user.id);
this.setStatus(201);
return course;
}
/**
* Update course
* @summary Update course (Instructor/Admin only)
*/
@Put('{id}')
@Security('jwt', ['INSTRUCTOR', 'ADMIN'])
@SuccessResponse(200, 'Success')
public async update(
@Path() id: number,
@Body() body: UpdateCourseDto,
@Request() req: any
): Promise<any> {
// Check ownership
const course = await courseService.getById(parseInt(id.toString()));
if (!course) {
this.setStatus(404);
throw new Error('Course not found');
}
if (course.created_by !== req.user.id && req.user.role.code !== 'ADMIN') {
this.setStatus(403);
throw new Error('You do not have permission to update this course');
}
const updated = await courseService.update(parseInt(id.toString()), body);
return updated;
}
}
```
---
## Step 2: Create Type Definitions
Create types in `src/types/`:
```typescript
// src/types/course.types.ts
/**
* Multi-language text structure
*/
export interface MultiLang {
th: string;
en: string;
}
/**
* Create course DTO
*/
export interface CreateCourseDto {
/** Course title in Thai and English */
title: MultiLang;
/** Course description in Thai and English */
description: MultiLang;
/** Category ID */
category_id: number;
/** Course price */
price: number;
/** Is the course free? */
is_free?: boolean;
/** Does the course have a certificate? */
have_certificate?: boolean;
/** Course thumbnail URL */
thumbnail?: string;
}
/**
* Update course DTO
*/
export interface UpdateCourseDto {
title?: MultiLang;
description?: MultiLang;
category_id?: number;
price?: number;
is_free?: boolean;
have_certificate?: boolean;
thumbnail?: string;
}
/**
* Course list query parameters
*/
export interface CourseListQuery {
page?: number;
limit?: number;
category?: number;
search?: string;
}
```
---
## Step 3: Create Validation Schemas
Create validator in `src/validators/`:
```typescript
// src/validators/course.validator.ts
import Joi from 'joi';
const multiLangSchema = Joi.object({
th: Joi.string().required(),
en: Joi.string().required()
});
export const courseSchema = {
create: Joi.object({
title: multiLangSchema.required(),
description: multiLangSchema.required(),
category_id: Joi.number().integer().positive().required(),
price: Joi.number().min(0).required(),
is_free: Joi.boolean().default(false),
have_certificate: Joi.boolean().default(false),
thumbnail: Joi.string().uri().optional()
}),
update: Joi.object({
title: multiLangSchema.optional(),
description: multiLangSchema.optional(),
category_id: Joi.number().integer().positive().optional(),
price: Joi.number().min(0).optional(),
is_free: Joi.boolean().optional(),
have_certificate: Joi.boolean().optional(),
thumbnail: Joi.string().uri().optional()
})
};
```
---
## Step 4: Create Service
Create service in `src/services/`:
```typescript
// src/services/course.service.ts
import { PrismaClient } from '@prisma/client';
import { CreateCourseDto, UpdateCourseDto, CourseListQuery } from '../types/course.types';
const prisma = new PrismaClient();
class CourseService {
async list({ page, limit, category, search }: CourseListQuery) {
const skip = ((page || 1) - 1) * (limit || 20);
const where: any = {
is_deleted: false,
status: 'APPROVED'
};
if (category) {
where.category_id = category;
}
if (search) {
where.OR = [
{ title: { path: ['th'], string_contains: search } },
{ title: { path: ['en'], string_contains: search } }
];
}
const [data, total] = await Promise.all([
prisma.course.findMany({
where,
skip,
take: limit || 20,
include: {
category: true,
instructors: {
where: { is_primary: true },
include: { user: { include: { profile: true } } }
}
},
orderBy: { created_at: 'desc' }
}),
prisma.course.count({ where })
]);
return {
data,
pagination: {
page: page || 1,
limit: limit || 20,
total,
totalPages: Math.ceil(total / (limit || 20))
}
};
}
async getById(id: number) {
return prisma.course.findUnique({
where: { id },
include: {
category: true,
instructors: {
include: { user: { include: { profile: true } } }
},
chapters: {
include: {
lessons: {
select: {
id: true,
title: true,
type: true,
sort_order: true
}
}
},
orderBy: { sort_order: 'asc' }
}
}
});
}
async create(data: CreateCourseDto, userId: number) {
return prisma.course.create({
data: {
...data,
status: 'DRAFT',
created_by: userId,
instructors: {
create: {
user_id: userId,
is_primary: true
}
}
},
include: {
category: true,
instructors: {
include: { user: { include: { profile: true } } }
}
}
});
}
async update(id: number, data: UpdateCourseDto) {
return prisma.course.update({
where: { id },
data,
include: {
category: true,
instructors: {
include: { user: { include: { profile: true } } }
}
}
});
}
}
export const courseService = new CourseService();
```
---
## Step 5: Generate TSOA Routes and Swagger Docs
// turbo
After creating the controller, generate routes and API documentation:
```bash
# Generate TSOA routes and Swagger spec
npm run tsoa:gen
# This will:
# 1. Generate routes in src/routes/tsoa-routes.ts
# 2. Generate swagger.json in public/swagger.json
# 3. Validate all TSOA decorators
```
---
## Step 6: Register Routes in App
Update `src/app.ts`:
```typescript
// src/app.ts
import express from 'express';
import swaggerUi from 'swagger-ui-express';
import { RegisterRoutes } from './routes/tsoa-routes';
const app = express();
// Middleware
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
// Register TSOA routes
RegisterRoutes(app);
// Swagger documentation
app.use('/api-docs', swaggerUi.serve, async (_req, res) => {
return res.send(
swaggerUi.generateHTML(await import('../public/swagger.json'))
);
});
export default app;
```
---
## Step 7: Configure TSOA
Create `tsoa.json` in project root:
```json
{
"entryFile": "src/app.ts",
"noImplicitAdditionalProperties": "throw-on-extras",
"controllerPathGlobs": ["src/controllers/**/*.controller.ts"],
"spec": {
"outputDirectory": "public",
"specVersion": 3,
"securityDefinitions": {
"jwt": {
"type": "http",
"scheme": "bearer",
"bearerFormat": "JWT"
}
}
},
"routes": {
"routesDir": "src/routes",
"middleware": "express",
"authenticationModule": "./src/middleware/auth.ts"
}
}
```
---
## Step 8: Write Tests
Create test file in `tests/integration/`:
```typescript
// tests/integration/courses.test.ts
import request from 'supertest';
import app from '../../src/app';
describe('Course API', () => {
let instructorToken: string;
beforeAll(async () => {
const res = await request(app)
.post('/api/auth/login')
.send({ username: 'instructor1', password: 'password123' });
instructorToken = res.body.token;
});
describe('POST /api/courses', () => {
it('should create course with valid data', async () => {
const courseData = {
title: { th: 'คอร์สทดสอบ', en: 'Test Course' },
description: { th: 'รายละเอียด', en: 'Description' },
category_id: 1,
price: 990,
is_free: false
};
const response = await request(app)
.post('/api/courses')
.set('Authorization', `Bearer ${instructorToken}`)
.send(courseData);
expect(response.status).toBe(201);
expect(response.body).toHaveProperty('id');
expect(response.body.status).toBe('DRAFT');
});
it('should return 400 with invalid data', async () => {
const response = await request(app)
.post('/api/courses')
.set('Authorization', `Bearer ${instructorToken}`)
.send({ title: 'Invalid' });
expect(response.status).toBe(400);
});
it('should return 401 without auth', async () => {
const response = await request(app)
.post('/api/courses')
.send({});
expect(response.status).toBe(401);
});
});
describe('GET /api/courses', () => {
it('should list courses', async () => {
const response = await request(app)
.get('/api/courses')
.query({ page: 1, limit: 10 });
expect(response.status).toBe(200);
expect(response.body).toHaveProperty('data');
expect(response.body).toHaveProperty('pagination');
});
});
});
```
---
## Step 9: Run Tests
// turbo
```bash
npm test -- courses.test.ts
```
---
## Step 10: View API Documentation
After generating TSOA routes, access Swagger UI:
```
http://localhost:4000/api-docs
```
---
## Checklist
- [ ] Controller created with TSOA decorators
- [ ] Type definitions created
- [ ] Validator created with Joi
- [ ] Service created with business logic
- [ ] TSOA routes generated (`npm run tsoa:gen`)
- [ ] Routes registered in app.ts
- [ ] Tests written (unit + integration)
- [ ] All tests passing
- [ ] API documentation accessible at /api-docs
- [ ] Manual testing done
---
## Best Practices
1. **TSOA Decorators**: Use proper decorators (@Get, @Post, @Security, etc.)
2. **Type Safety**: Define interfaces for all DTOs
3. **Documentation**: Add JSDoc comments for Swagger descriptions
4. **Validation**: Validate input at controller level
5. **Authorization**: Use @Security decorator for protected routes
6. **Multi-Language**: Use JSON structure for user-facing text
7. **Pagination**: Always paginate list endpoints
8. **Testing**: Write tests before deploying
9. **Auto-Generate**: Always run `npm run tsoa:gen` after route changes
---
## Common TSOA Patterns
### File Upload Endpoint
```typescript
import { UploadedFile } from 'express-fileupload';
@Post('upload')
@Security('jwt', ['INSTRUCTOR', 'ADMIN'])
public async upload(
@UploadedFile() file: Express.Multer.File
): Promise<{ url: string }> {
const result = await uploadService.uploadFile(file);
return { url: result.url };
}
```
### Ownership Check
```typescript
@Put('{id}')
@Security('jwt')
public async update(
@Path() id: number,
@Body() body: UpdateDto,
@Request() req: any
): Promise<any> {
const resource = await service.getById(id);
if (!resource) {
this.setStatus(404);
throw new Error('Not found');
}
if (resource.user_id !== req.user.id && req.user.role.code !== 'ADMIN') {
this.setStatus(403);
throw new Error('Forbidden');
}
return await service.update(id, body);
}
```
### Soft Delete
```typescript
@Delete('{id}')
@Security('jwt')
public async delete(@Path() id: number): Promise<void> {
await service.softDelete(id);
this.setStatus(204);
}
```
---
## Package.json Scripts
Add these scripts to `package.json`:
```json
{
"scripts": {
"dev": "nodemon --exec ts-node src/server.ts",
"build": "npm run tsoa:gen && tsc",
"tsoa:gen": "tsoa spec-and-routes",
"start": "node dist/server.js",
"test": "jest"
}
}
```

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---
description: เขียนรายงานการทำงานประจำวันของ jakkrapartXD (Write daily report for jakkrapartXD)
---
1. **Initial Context & Date**:
- ตรวจสอบวันที่ปัจจุบัน (Current Date)
- ดึงข้อมูล commits จาก GitHub ของวันนั้น (GitHub Commits Analysis)
- รวบรวมสิ่งที่ทำไปทั้งหมดใน Session นี้ (Completed Tasks, Code Changes, Artifacts Created)
2. **Analyze Work for "Knowledge Gained" (องค์ความรู้ที่ได้รับ)**:
- พิจารณาจาก Code ที่เขียน, logic ที่แก้, หรือ library ที่ใช้
- สรุปเป็นหัวข้อความรู้ (Key Takeaways)
- **รายละเอียด**: อธิบายว่าเรียนรู้อะไร หรือใช้อะไรแก้ปัญหา เชิง Technical ลึกๆ (เช่น การใช้ Prisma Transaction, การทำ Custom Decorator, Logic การคำนวณ)
3. **Analyze Work for "Problems and Obstacles" (ปัญหาและอุปสรรค)**:
- พิจารณาจาก Error ที่เจอ (Lint errors, Compile errors, Runtime errors)
- ความยากของ Logic ที่ต้อง implement
- **รายละเอียด**: อธิบายว่าเจอปัญหาอะไร และแก้อย่างไร (Root Cause & Solution)
4. **Generate Report Output**:
- สร้างเนื้อหาตาม Format ด้านล่างนี้เป๊ะๆ:
```markdown
# Daily Report: [YYYY-MM-DD] - jakkrapartXD
## องค์ความรู้ที่ได้รับ
* [หัวข้อสั้นๆ 1]
* [หัวข้อสั้นๆ 2]
### รายละเอียด
* [อธิบายรายละเอียดเชิงลึกและการนำไปใช้]
* [อธิบายรายละเอียดเชิงลึกและการนำไปใช้]
## ปัญหาและอุปสรรค
* [หัวข้อปัญหา 1]
* [หัวข้อปัญหา 2]
### รายละเอียด
* [สาเหตุของปัญหาและวิธีการแก้ไข]
* [สาเหตุของปัญหาและวิธีการแก้ไข]
```
5. **Final Review**:
- ตรวจสอบว่ามีครบทุกหัวข้อ: (1) องค์ความรู้ (2) รายละเอียด (3) ปัญหาและอุปสรรค (4) รายละเอียด (5) วันที่

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---
description: How to create and run database migrations
---
# Database Migration Workflow
Follow these steps to create and apply database migrations using Prisma.
---
## Step 1: Update Prisma Schema
Edit `prisma/schema.prisma`:
```prisma
model Course {
id Int @id @default(autoincrement())
title Json // { th: "", en: "" }
description Json
price Decimal @db.Decimal(10, 2)
is_free Boolean @default(false)
have_certificate Boolean @default(false)
status CourseStatus @default(DRAFT)
thumbnail String?
category_id Int
category Category @relation(fields: [category_id], references: [id])
created_by Int
creator User @relation(fields: [created_by], references: [id])
chapters Chapter[]
instructors CourseInstructor[]
enrollments Enrollment[]
created_at DateTime @default(now())
updated_at DateTime @updatedAt
deleted_at DateTime?
is_deleted Boolean @default(false)
@@index([category_id])
@@index([status])
@@index([is_deleted])
}
```
---
## Step 2: Create Migration
// turbo
Run migration command:
```bash
npx prisma migrate dev --name add_course_model
```
This will:
1. Generate SQL migration file
2. Apply migration to database
3. Regenerate Prisma Client
---
## Step 3: Review Migration File
Check generated SQL in `prisma/migrations/`:
```sql
-- CreateTable
CREATE TABLE "Course" (
"id" SERIAL NOT NULL,
"title" JSONB NOT NULL,
"description" JSONB NOT NULL,
"price" DECIMAL(10,2) NOT NULL,
"is_free" BOOLEAN NOT NULL DEFAULT false,
...
CONSTRAINT "Course_pkey" PRIMARY KEY ("id")
);
-- CreateIndex
CREATE INDEX "Course_category_id_idx" ON "Course"("category_id");
```
---
## Step 4: Update Prisma Client
// turbo
Regenerate client if needed:
```bash
npx prisma generate
```
---
## Step 5: Create Seed Data (Optional)
Update `prisma/seed.js`:
```javascript
const { PrismaClient } = require('@prisma/client');
const prisma = new PrismaClient();
async function main() {
// Create categories
const category = await prisma.category.create({
data: {
name: { th: 'การเขียนโปรแกรม', en: 'Programming' },
description: { th: 'หลักสูตรด้านการเขียนโปรแกรม', en: 'Programming courses' }
}
});
// Create test user
const user = await prisma.user.create({
data: {
username: 'instructor1',
email: 'instructor@example.com',
password: '$2b$10$...', // hashed password
role_id: 2 // INSTRUCTOR
}
});
// Create test course
const course = await prisma.course.create({
data: {
title: { th: 'Python สำหรับผู้เริ่มต้น', en: 'Python for Beginners' },
description: { th: 'เรียนรู้ Python', en: 'Learn Python' },
price: 990,
is_free: false,
category_id: category.id,
created_by: user.id
}
});
console.log('Seed data created:', { category, user, course });
}
main()
.catch((e) => {
console.error(e);
process.exit(1);
})
.finally(async () => {
await prisma.$disconnect();
});
```
---
## Step 6: Run Seed
// turbo
Seed the database:
```bash
npx prisma db seed
```
---
## Common Migration Tasks
### Add New Field
```prisma
model Course {
// ... existing fields
slug String @unique // New field
}
```
// turbo
```bash
npx prisma migrate dev --name add_course_slug
```
### Add Index
```prisma
model Course {
// ... existing fields
@@index([created_at]) // New index
}
```
### Add Relation
```prisma
model Lesson {
// ... existing fields
quiz_id Int?
quiz Quiz? @relation(fields: [quiz_id], references: [id])
}
```
### Rename Field
```prisma
model Course {
// Old: instructor_id
created_by Int // New name
}
```
**Note**: Prisma will detect rename and ask for confirmation
---
## Production Migration
### Step 1: Generate Migration (Dev)
```bash
npx prisma migrate dev --name migration_name
```
### Step 2: Commit Migration Files
```bash
git add prisma/migrations/
git commit -m "Add migration: migration_name"
```
### Step 3: Deploy to Production
```bash
npx prisma migrate deploy
```
**Important**: Never use `migrate dev` in production!
---
## Rollback Migration
### Option 1: Manual Rollback
```bash
# Find migration to rollback
ls prisma/migrations/
# Manually run the down migration (if exists)
psql $DATABASE_URL < prisma/migrations/XXXXXX_migration_name/down.sql
```
### Option 2: Reset Database (Dev Only)
```bash
npx prisma migrate reset
```
**Warning**: This will delete all data!
---
## Troubleshooting
### Migration Failed
```bash
# Check database status
npx prisma migrate status
# Resolve migration
npx prisma migrate resolve --applied MIGRATION_NAME
# or
npx prisma migrate resolve --rolled-back MIGRATION_NAME
```
### Schema Drift
```bash
# Check for drift
npx prisma migrate diff
# Reset and reapply
npx prisma migrate reset
```
### Generate Client Error
```bash
# Clear node_modules and reinstall
rm -rf node_modules
npm install
# Regenerate client
npx prisma generate
```
---
## Checklist
- [ ] Schema updated in `prisma/schema.prisma`
- [ ] Migration created with descriptive name
- [ ] Migration SQL reviewed
- [ ] Migration applied successfully
- [ ] Prisma Client regenerated
- [ ] Seed data updated (if needed)
- [ ] Tests updated for new schema
- [ ] Migration files committed to git
---
## Best Practices
1. **Descriptive Names**: Use clear migration names
- ✅ `add_course_certificate_field`
- ❌ `update_schema`
2. **Small Migrations**: One logical change per migration
3. **Review SQL**: Always check generated SQL before applying
4. **Test First**: Test migrations on dev database first
5. **Backup**: Backup production database before migrating
6. **Indexes**: Add indexes for frequently queried fields
7. **Constraints**: Use database constraints for data integrity

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---
description: How to deploy the backend to production
---
# Deployment Workflow
Follow these steps to deploy the E-Learning Platform backend to production.
---
## Prerequisites
- Production server with Node.js 18+
- PostgreSQL database
- MinIO/S3 storage
- Domain name and SSL certificate
---
## Step 1: Prepare Production Server
```bash
# Update system
sudo apt update && sudo apt upgrade -y
# Install Node.js 18
curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
sudo apt install -y nodejs
# Install PM2
sudo npm install -g pm2
# Install nginx
sudo apt install -y nginx
# Install certbot for SSL
sudo apt install -y certbot python3-certbot-nginx
```
---
## Step 2: Clone Repository
```bash
# Create app directory
sudo mkdir -p /var/www/elearning-backend
sudo chown $USER:$USER /var/www/elearning-backend
# Clone repository
cd /var/www/elearning-backend
git clone <repository-url> .
```
---
## Step 3: Install Dependencies
```bash
npm ci --production
```
---
## Step 4: Setup Environment Variables
Create `.env` file:
```bash
# Application
NODE_ENV=production
PORT=4000
APP_URL=https://api.elearning.com
# Database
DATABASE_URL=postgresql://user:password@db-host:5432/elearning_prod
# MinIO/S3
S3_ENDPOINT=https://s3.elearning.com
S3_ACCESS_KEY=<access-key>
S3_SECRET_KEY=<secret-key>
S3_BUCKET_COURSES=courses
S3_BUCKET_VIDEOS=videos
S3_BUCKET_DOCUMENTS=documents
S3_BUCKET_IMAGES=images
S3_BUCKET_ATTACHMENTS=attachments
# JWT
JWT_SECRET=<strong-random-secret>
JWT_EXPIRES_IN=24h
# Email
SMTP_HOST=smtp.gmail.com
SMTP_PORT=587
SMTP_USER=<email>
SMTP_PASSWORD=<password>
SMTP_FROM=noreply@elearning.com
# CORS
CORS_ORIGIN=https://elearning.com,https://admin.elearning.com
# Rate Limiting
RATE_LIMIT_WINDOW_MS=900000
RATE_LIMIT_MAX_REQUESTS=100
```
---
## Step 5: Run Database Migrations
```bash
npx prisma migrate deploy
```
---
## Step 6: Setup PM2
Create `ecosystem.config.js`:
```javascript
module.exports = {
apps: [{
name: 'elearning-backend',
script: './src/server.js',
instances: 'max',
exec_mode: 'cluster',
env: {
NODE_ENV: 'production'
},
error_file: './logs/err.log',
out_file: './logs/out.log',
log_file: './logs/combined.log',
time: true
}]
};
```
Start application:
```bash
pm2 start ecosystem.config.js
pm2 save
pm2 startup
```
---
## Step 7: Configure Nginx
Create `/etc/nginx/sites-available/elearning-backend`:
```nginx
upstream backend {
server localhost:4000;
}
server {
listen 80;
server_name api.elearning.com;
# Redirect to HTTPS
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2;
server_name api.elearning.com;
# SSL Configuration
ssl_certificate /etc/letsencrypt/live/api.elearning.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/api.elearning.com/privkey.pem;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers HIGH:!aNULL:!MD5;
# Security Headers
add_header X-Frame-Options "SAMEORIGIN" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-XSS-Protection "1; mode=block" always;
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
# Logging
access_log /var/log/nginx/elearning-backend-access.log;
error_log /var/log/nginx/elearning-backend-error.log;
# File Upload Size
client_max_body_size 500M;
location / {
proxy_pass http://backend;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_cache_bypass $http_upgrade;
# Timeouts
proxy_connect_timeout 600s;
proxy_send_timeout 600s;
proxy_read_timeout 600s;
}
}
```
Enable site:
```bash
sudo ln -s /etc/nginx/sites-available/elearning-backend /etc/nginx/sites-enabled/
sudo nginx -t
sudo systemctl restart nginx
```
---
## Step 8: Setup SSL Certificate
```bash
sudo certbot --nginx -d api.elearning.com
```
---
## Step 9: Setup Monitoring
### PM2 Monitoring
```bash
pm2 install pm2-logrotate
pm2 set pm2-logrotate:max_size 10M
pm2 set pm2-logrotate:retain 30
```
### Health Check Endpoint
Add to your app:
```javascript
app.get('/health', (req, res) => {
res.status(200).json({
status: 'ok',
timestamp: new Date().toISOString(),
uptime: process.uptime()
});
});
```
---
## Step 10: Setup Backup
Create backup script `/opt/scripts/backup-db.sh`:
```bash
#!/bin/bash
DATE=$(date +%Y%m%d_%H%M%S)
BACKUP_DIR="/var/backups/elearning"
DB_NAME="elearning_prod"
mkdir -p $BACKUP_DIR
# Backup database
pg_dump $DB_NAME | gzip > $BACKUP_DIR/db_$DATE.sql.gz
# Keep only last 7 days
find $BACKUP_DIR -name "db_*.sql.gz" -mtime +7 -delete
echo "Backup completed: db_$DATE.sql.gz"
```
Add to crontab:
```bash
# Daily backup at 2 AM
0 2 * * * /opt/scripts/backup-db.sh
```
---
## Step 11: Verify Deployment
```bash
# Check PM2 status
pm2 status
# Check logs
pm2 logs elearning-backend --lines 50
# Test health endpoint
curl https://api.elearning.com/health
# Test API
curl https://api.elearning.com/api/courses
```
---
## Update Deployment
```bash
# Pull latest code
cd /var/www/elearning-backend
git pull origin main
# Install dependencies
npm ci --production
# Run migrations
npx prisma migrate deploy
# Restart application
pm2 restart elearning-backend
# Check status
pm2 status
```
---
## Rollback
```bash
# Revert to previous commit
git reset --hard HEAD~1
# Reinstall dependencies
npm ci --production
# Rollback migration (if needed)
npx prisma migrate resolve --rolled-back <migration-name>
# Restart
pm2 restart elearning-backend
```
---
## Checklist
- [ ] Production server setup
- [ ] Repository cloned
- [ ] Dependencies installed
- [ ] Environment variables configured
- [ ] Database migrated
- [ ] PM2 configured and running
- [ ] Nginx configured
- [ ] SSL certificate installed
- [ ] Monitoring setup
- [ ] Backup script configured
- [ ] Health check working
- [ ] API endpoints tested
---
## Security Checklist
- [ ] Strong JWT secret
- [ ] Database credentials secured
- [ ] CORS configured correctly
- [ ] Rate limiting enabled
- [ ] SSL/TLS enabled
- [ ] Security headers configured
- [ ] File upload limits set
- [ ] Environment variables not in git
- [ ] Firewall configured
- [ ] SSH key-based authentication
---
## Monitoring
### PM2 Commands
```bash
# View logs
pm2 logs
# Monitor resources
pm2 monit
# Restart app
pm2 restart elearning-backend
# Stop app
pm2 stop elearning-backend
# Delete app
pm2 delete elearning-backend
```
### Check System Resources
```bash
# CPU and Memory
htop
# Disk usage
df -h
# Network connections
netstat -tulpn
```

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@ -0,0 +1,459 @@
---
description: Complete workflow for developing E-Learning Platform backend
---
# E-Learning Backend Development Workflow
Complete guide for developing the E-Learning Platform backend using TypeScript and TSOA.
---
## 🎯 Overview
This workflow covers the entire development process from initial setup to deployment.
---
## Phase 1: Initial Setup
### 1.1 Environment Setup
Follow the [Setup Workflow](./setup.md):
```bash
# Clone repository
git clone <repository-url>
cd e-learning/Backend
# Install dependencies
npm install
# Install TypeScript and TSOA
npm install -D typescript @types/node @types/express ts-node nodemon
npm install tsoa swagger-ui-express
# Setup environment
cp .env.example .env
# Edit .env with your configuration
# Start Docker services
docker compose up -d
# Run migrations
npx prisma migrate dev
# Seed database
npx prisma db seed
# Start dev server
npm run dev
```
### 1.2 Verify Setup
```bash
# Test health endpoint
curl http://localhost:4000/health
# Test login
curl -X POST http://localhost:4000/api/auth/login \
-H "Content-Type: application/json" \
-d '{"username": "admin", "password": "admin123"}'
```
---
## Phase 2: Database Design
### 2.1 Design Schema
Review and update `prisma/schema.prisma`:
```prisma
model User {
id Int @id @default(autoincrement())
username String @unique
email String @unique
password String
role_id Int
role Role @relation(fields: [role_id], references: [id])
profile Profile?
created_at DateTime @default(now())
updated_at DateTime @updatedAt
}
model Course {
id Int @id @default(autoincrement())
title Json // { th: "", en: "" }
description Json
price Decimal @db.Decimal(10, 2)
is_free Boolean @default(false)
have_certificate Boolean @default(false)
status CourseStatus @default(DRAFT)
category_id Int
category Category @relation(fields: [category_id], references: [id])
created_by Int
creator User @relation(fields: [created_by], references: [id])
chapters Chapter[]
instructors CourseInstructor[]
created_at DateTime @default(now())
updated_at DateTime @updatedAt
@@index([category_id])
@@index([status])
}
```
### 2.2 Create Migration
Follow the [Database Migration Workflow](./database-migration.md):
```bash
npx prisma migrate dev --name initial_schema
```
---
## Phase 3: Core Features Development
### 3.1 Authentication System
**Create endpoints:**
- `POST /api/auth/register` - User registration
- `POST /api/auth/login` - User login
- `POST /api/auth/logout` - User logout
- `POST /api/auth/refresh` - Refresh token
**Implementation steps:**
1. Create TSOA controller with `@Route`, `@Post` decorators
2. Create TypeScript service with interfaces
3. Implement JWT middleware
4. Write tests
See [Create API Endpoint Workflow](./create-api-endpoint.md) for detailed examples.
### 3.2 Course Management
Follow the [Create API Endpoint Workflow](./create-api-endpoint.md) for:
**Instructor endpoints:**
- `POST /api/instructor/courses` - Create course
- `GET /api/instructor/courses` - List my courses
- `PUT /api/instructor/courses/:id` - Update course
- `DELETE /api/instructor/courses/:id` - Delete course
- `POST /api/instructor/courses/:id/submit` - Submit for approval
**Public endpoints:**
- `GET /api/courses` - List approved courses
- `GET /api/courses/:id` - Get course details
**Student endpoints:**
- `POST /api/students/courses/:id/enroll` - Enroll in course
- `GET /api/students/courses` - My enrolled courses
### 3.3 Chapters & Lessons
**Create endpoints:**
- `POST /api/instructor/courses/:courseId/chapters` - Create chapter
- `POST /api/instructor/courses/:courseId/chapters/:chapterId/lessons` - Create lesson
- `PUT /api/instructor/courses/:courseId/lessons/:lessonId` - Update lesson
- `DELETE /api/instructor/courses/:courseId/lessons/:lessonId` - Delete lesson
**Key features:**
- Multi-language support (th/en)
- Lesson types (video, text, pdf, quiz)
- Sequential ordering
- Prerequisites system
### 3.4 File Upload System
Follow the [File Upload Workflow](./file-upload.md):
**Implement:**
- Video upload for lessons
- Attachment upload (PDF, DOC, etc.)
- Image upload for thumbnails
- S3/MinIO integration
- File validation (type, size)
**Endpoints:**
- `POST /api/instructor/lessons/:lessonId/video` - Upload video
- `POST /api/instructor/lessons/:lessonId/attachments` - Upload attachments
- `GET /api/students/lessons/:lessonId/attachments/:id/download` - Download
### 3.5 Quiz System
**Create endpoints:**
- `POST /api/instructor/lessons/:lessonId/quiz` - Create quiz
- `POST /api/instructor/quizzes/:quizId/questions` - Add question
- `GET /api/students/quizzes/:quizId` - Get quiz
- `POST /api/students/quizzes/:quizId/submit` - Submit quiz
**Features:**
- Multiple choice questions
- Time limits
- Attempt limits
- Cooldown periods
- Score policies (HIGHEST, LATEST, AVERAGE)
### 3.6 Progress Tracking
**Implement:**
- Video progress tracking (save every 5 seconds)
- Lesson completion
- Course progress calculation
- Certificate generation
**Endpoints:**
- `POST /api/students/lessons/:lessonId/progress` - Save progress
- `GET /api/students/lessons/:lessonId/progress` - Get progress
- `POST /api/students/lessons/:lessonId/complete` - Mark complete
- `GET /api/students/courses/:courseId/certificate` - Get certificate
---
## Phase 4: Testing
Follow the [Testing Workflow](./testing.md):
### 4.1 Unit Tests
```bash
# Test services
npm test -- unit/auth.service.test.js
npm test -- unit/course.service.test.js
```
### 4.2 Integration Tests
```bash
# Test API endpoints
npm test -- integration/auth.test.js
npm test -- integration/courses.test.js
npm test -- integration/lessons.test.js
```
### 4.3 Coverage
```bash
npm test -- --coverage
```
Target: **>80% coverage**
---
## Phase 5: Optimization
### 5.1 Database Optimization
- Add indexes for frequently queried fields
- Optimize N+1 queries
- Use `select` to limit fields
- Implement pagination
```prisma
model Course {
// ...
@@index([category_id])
@@index([status])
@@index([created_at])
}
```
### 5.2 Rate Limiting
Use `express-rate-limit` middleware to limit requests (e.g., 100 requests per 15 minutes).
---
## Phase 6: Security Hardening
### 6.1 Security Checklist
- [ ] Input validation on all endpoints
- [ ] SQL injection prevention (Prisma handles this)
- [ ] XSS prevention (sanitize HTML)
- [ ] CSRF protection
- [ ] Rate limiting
- [ ] CORS configuration
- [ ] Helmet.js for security headers
- [ ] File upload validation
- [ ] Strong JWT secrets
- [ ] Password hashing (bcrypt)
### 6.2 Implement Security Middleware
Use `helmet()` for security headers and configure CORS with allowed origins.
---
## Phase 7: Documentation
### 7.1 API Documentation
TSOA automatically generates Swagger/OpenAPI documentation:
```typescript
import swaggerUi from 'swagger-ui-express';
app.use('/api-docs', swaggerUi.serve, async (_req, res) => {
return res.send(
swaggerUi.generateHTML(await import('../public/swagger.json'))
);
});
```
**Generate documentation:**
```bash
npm run tsoa:gen
```
Access at: `http://localhost:4000/api-docs`
### 7.2 Code Documentation
- JSDoc comments for all functions
- README.md with setup instructions
- API endpoint documentation
- Database schema documentation
---
## Phase 8: Deployment
Follow the [Deployment Workflow](./deployment.md):
### 8.1 Prepare for Production
```bash
# Set NODE_ENV
export NODE_ENV=production
# Install production dependencies only
npm ci --production
# Run migrations
npx prisma migrate deploy
# Build (if needed)
npm run build
```
### 8.2 Deploy with PM2
```bash
pm2 start ecosystem.config.js
pm2 save
pm2 startup
```
### 8.3 Setup Nginx
Configure reverse proxy and SSL
### 8.4 Monitoring
- Setup PM2 monitoring
- Configure logging
- Setup error tracking (Sentry)
- Health check endpoint
---
## Development Best Practices
### 1. Code Organization
```
src/
├── config/ # Configuration files
├── controllers/ # Request handlers
├── middleware/ # Express middleware
├── models/ # Prisma models (generated)
├── routes/ # Route definitions
├── services/ # Business logic
├── utils/ # Utility functions
├── validators/ # Input validation
└── app.js # Express app setup
```
### 2. Git Workflow
```bash
# Create feature branch
git checkout -b feature/user-authentication
# Make changes and commit
git add .
git commit -m "feat: implement user authentication"
# Push and create PR
git push origin feature/user-authentication
```
### 3. Code Review Checklist
- [ ] Code follows style guide
- [ ] Tests written and passing
- [ ] No console.logs in production code
- [ ] Error handling implemented
- [ ] Input validation added
- [ ] Documentation updated
- [ ] No sensitive data in code
---
## Troubleshooting
- **Database error**: Check `docker logs elearning-postgres`, run `npx prisma db pull`
- **Port in use**: Find with `lsof -i :4000`, kill with `kill -9 <PID>`
- **Prisma error**: Run `npx prisma generate` or `npx prisma migrate reset`
---
## Resources
- [Backend Development Rules](../rules/rules.md)
- [Agent Skills Backend](../../agent_skills_backend.md)
- [API Documentation](../../docs/api-docs/)
- [Development Setup](../../docs/development_setup.md)
---
## Quick Commands Reference
```bash
# Development
npm run dev # Start dev server (ts-node)
npm run build # Build TypeScript
npm run tsoa:gen # Generate TSOA routes & Swagger
npm test # Run tests
npm run lint # Run linter
npm run format # Format code
# Database
npx prisma studio # Open Prisma Studio
npx prisma migrate dev # Create and apply migration
npx prisma db seed # Seed database
# Docker
docker compose up -d # Start services
docker compose down # Stop services
docker compose logs -f # View logs
# PM2 (Production)
pm2 start app.js # Start app
pm2 restart app # Restart app
pm2 logs # View logs
pm2 monit # Monitor resources
```
---
**Ready to build an amazing E-Learning Platform! 🚀**

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@ -0,0 +1,546 @@
---
description: How to handle file uploads (videos, attachments)
---
# File Upload Workflow
Follow these steps to implement file upload functionality for videos and attachments using TypeScript and TSOA.
---
## Prerequisites
- MinIO/S3 configured and running
- Dependencies installed: `npm install multer @aws-sdk/client-s3 @aws-sdk/lib-storage`
- TypeScript configured
---
## Step 1: Configure S3/MinIO Client
Create `src/config/s3.config.ts`:
```typescript
import { S3Client } from '@aws-sdk/client-s3';
export const s3Client = new S3Client({
endpoint: process.env.S3_ENDPOINT,
region: process.env.S3_REGION || 'us-east-1',
credentials: {
accessKeyId: process.env.S3_ACCESS_KEY!,
secretAccessKey: process.env.S3_SECRET_KEY!
},
forcePathStyle: true // Required for MinIO
});
```
---
## Step 2: Create Upload Service
Create `src/services/upload.service.ts`:
```typescript
import { s3Client } from '../config/s3.config';
import { Upload } from '@aws-sdk/lib-storage';
import { DeleteObjectCommand } from '@aws-sdk/client-s3';
import { v4 as uuidv4 } from 'uuid';
import path from 'path';
export interface UploadResult {
key: string;
url: string;
fileName: string;
fileSize: number;
mimeType: string;
}
type FolderType = 'videos' | 'documents' | 'images' | 'attachments';
class UploadService {
async uploadFile(file: Express.Multer.File, folder: FolderType): Promise<UploadResult> {
const fileExt = path.extname(file.originalname);
const fileName = `${Date.now()}-${uuidv4()}${fileExt}`;
const key = `${folder}/${fileName}`;
const upload = new Upload({
client: s3Client,
params: {
Bucket: this.getBucket(folder),
Key: key,
Body: file.buffer,
ContentType: file.mimetype
}
});
await upload.done();
return {
key,
url: `${process.env.S3_ENDPOINT}/${this.getBucket(folder)}/${key}`,
fileName: file.originalname,
fileSize: file.size,
mimeType: file.mimetype
};
}
async deleteFile(key: string, folder: FolderType): Promise<void> {
const command = new DeleteObjectCommand({
Bucket: this.getBucket(folder),
Key: key
});
await s3Client.send(command);
}
private getBucket(folder: FolderType): string {
const bucketMap: Record<FolderType, string> = {
videos: process.env.S3_BUCKET_VIDEOS!,
documents: process.env.S3_BUCKET_DOCUMENTS!,
images: process.env.S3_BUCKET_IMAGES!,
attachments: process.env.S3_BUCKET_ATTACHMENTS!
};
return bucketMap[folder] || process.env.S3_BUCKET_COURSES!;
}
validateFileType(file: Express.Multer.File, allowedTypes: string[]): boolean {
return allowedTypes.includes(file.mimetype);
}
validateFileSize(file: Express.Multer.File, maxSize: number): boolean {
return file.size <= maxSize;
}
}
export const uploadService = new UploadService();
```
---
## Step 3: Create Upload Middleware
Create `src/middleware/upload.middleware.ts`:
```typescript
import multer from 'multer';
import { Request } from 'express';
// File type validators
export const ALLOWED_VIDEO_TYPES = ['video/mp4', 'video/webm', 'video/quicktime'];
export const ALLOWED_DOCUMENT_TYPES = [
'application/pdf',
'application/msword',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'application/vnd.ms-excel',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
];
export const ALLOWED_IMAGE_TYPES = ['image/jpeg', 'image/png', 'image/gif'];
// File size limits
export const MAX_VIDEO_SIZE = 500 * 1024 * 1024; // 500 MB
export const MAX_ATTACHMENT_SIZE = 100 * 1024 * 1024; // 100 MB
export const MAX_IMAGE_SIZE = 10 * 1024 * 1024; // 10 MB
// Multer configuration
const storage = multer.memoryStorage();
const fileFilter = (allowedTypes: string[]) => (
req: Request,
file: Express.Multer.File,
cb: multer.FileFilterCallback
) => {
if (allowedTypes.includes(file.mimetype)) {
cb(null, true);
} else {
cb(new Error('Invalid file type'));
}
};
// Upload configurations
export const uploadVideo = multer({
storage,
limits: { fileSize: MAX_VIDEO_SIZE },
fileFilter: fileFilter(ALLOWED_VIDEO_TYPES)
}).single('video');
export const uploadAttachment = multer({
storage,
limits: { fileSize: MAX_ATTACHMENT_SIZE },
fileFilter: fileFilter([...ALLOWED_DOCUMENT_TYPES, ...ALLOWED_IMAGE_TYPES])
}).single('file');
export const uploadAttachments = multer({
storage,
limits: { fileSize: MAX_ATTACHMENT_SIZE },
fileFilter: fileFilter([...ALLOWED_DOCUMENT_TYPES, ...ALLOWED_IMAGE_TYPES])
}).array('attachments', 10); // Max 10 files
export const uploadImage = multer({
storage,
limits: { fileSize: MAX_IMAGE_SIZE },
fileFilter: fileFilter(ALLOWED_IMAGE_TYPES)
}).single('image');
```
---
## Step 4: Create Upload Controller with TSOA
Create `src/controllers/upload.controller.ts`:
```typescript
import { Request } from 'express';
import { Controller, Post, Route, Tags, Security, UploadedFile, SuccessResponse } from 'tsoa';
import { uploadService } from '../services/upload.service';
interface UploadResponse {
video_url?: string;
file_size: number;
duration?: number | null;
file_name?: string;
file_path?: string;
mime_type?: string;
download_url?: string;
}
@Route('api/upload')
@Tags('File Upload')
export class UploadController extends Controller {
/**
* Upload video file
* @summary Upload video for lesson (Instructor/Admin only)
*/
@Post('video')
@Security('jwt', ['INSTRUCTOR', 'ADMIN'])
@SuccessResponse(200, 'Success')
public async uploadVideo(
@UploadedFile() file: Express.Multer.File
): Promise<UploadResponse> {
if (!file) {
this.setStatus(400);
throw new Error('No video file provided');
}
const result = await uploadService.uploadFile(file, 'videos');
return {
video_url: result.url,
file_size: result.fileSize,
duration: null // Will be processed later
};
}
/**
* Upload attachment file
* @summary Upload attachment for lesson (Instructor/Admin only)
*/
@Post('attachment')
@Security('jwt', ['INSTRUCTOR', 'ADMIN'])
@SuccessResponse(200, 'Success')
public async uploadAttachment(
@UploadedFile() file: Express.Multer.File
): Promise<UploadResponse> {
if (!file) {
this.setStatus(400);
throw new Error('No file provided');
}
const result = await uploadService.uploadFile(file, 'attachments');
return {
file_name: result.fileName,
file_path: result.key,
file_size: result.fileSize,
mime_type: result.mimeType,
download_url: result.url
};
}
}
```
---
## Step 5: Generate TSOA Routes
// turbo
After creating the upload controller, generate routes and API documentation:
```bash
npm run tsoa:gen
```
---
## Step 5: Create Upload Routes
Create `src/routes/upload.routes.js`:
```javascript
const express = require('express');
const router = express.Router();
const uploadController = require('../controllers/upload.controller');
const { authenticate, authorize } = require('../middleware/auth');
const { uploadVideo, uploadAttachment } = require('../middleware/upload.middleware');
// Video upload
router.post(
'/video',
authenticate,
authorize(['INSTRUCTOR', 'ADMIN']),
(req, res, next) => {
uploadVideo(req, res, (err) => {
if (err) {
if (err.message === 'Invalid file type') {
return res.status(422).json({
error: {
code: 'INVALID_FILE_TYPE',
message: 'Only MP4, WebM, and QuickTime videos are allowed'
}
});
}
if (err.code === 'LIMIT_FILE_SIZE') {
return res.status(422).json({
error: {
code: 'FILE_TOO_LARGE',
message: 'Video file size exceeds 500 MB limit'
}
});
}
return res.status(500).json({
error: {
code: 'UPLOAD_ERROR',
message: err.message
}
});
}
next();
});
},
uploadController.uploadVideo
);
// Attachment upload
router.post(
'/attachment',
authenticate,
authorize(['INSTRUCTOR', 'ADMIN']),
(req, res, next) => {
uploadAttachment(req, res, (err) => {
if (err) {
if (err.message === 'Invalid file type') {
return res.status(422).json({
error: {
code: 'INVALID_FILE_TYPE',
message: 'File type not allowed'
}
});
}
if (err.code === 'LIMIT_FILE_SIZE') {
return res.status(422).json({
error: {
code: 'FILE_TOO_LARGE',
message: 'File size exceeds 100 MB limit'
}
});
}
return res.status(500).json({
error: {
code: 'UPLOAD_ERROR',
message: err.message
}
});
}
next();
});
},
uploadController.uploadAttachment
);
module.exports = router;
```
---
## Step 6: Integrate with Lesson Creation
Update lesson controller to handle file uploads:
```javascript
async createLesson(req, res) {
try {
const { courseId, chapterId } = req.params;
// Create lesson
const lesson = await lessonService.create({
...req.body,
chapter_id: parseInt(chapterId)
});
// Handle video upload if present
if (req.files?.video) {
const videoResult = await uploadService.uploadFile(
req.files.video[0],
`courses/${courseId}/lessons/${lesson.id}`
);
await lessonService.update(lesson.id, {
video_url: videoResult.url
});
}
// Handle attachments if present
if (req.files?.attachments) {
const attachments = await Promise.all(
req.files.attachments.map(async (file, index) => {
const result = await uploadService.uploadFile(
file,
`lessons/${lesson.id}/attachments`
);
return {
lesson_id: lesson.id,
file_name: result.fileName,
file_path: result.key,
file_size: result.fileSize,
mime_type: result.mimeType,
description: req.body.descriptions?.[index] || {},
sort_order: index + 1
};
})
);
await prisma.attachment.createMany({
data: attachments
});
}
return res.status(201).json(lesson);
} catch (error) {
console.error('Create lesson error:', error);
return res.status(500).json({
error: {
code: 'INTERNAL_ERROR',
message: 'Failed to create lesson'
}
});
}
}
```
---
## Step 7: Test File Upload
```bash
# Upload video
curl -X POST http://localhost:4000/api/upload/video \
-H "Authorization: Bearer <token>" \
-F "video=@/path/to/video.mp4"
# Upload attachment
curl -X POST http://localhost:4000/api/upload/attachment \
-H "Authorization: Bearer <token>" \
-F "file=@/path/to/document.pdf"
```
---
## Error Handling
### Common Errors
1. **File Too Large**
```json
{
"error": {
"code": "FILE_TOO_LARGE",
"message": "File size exceeds maximum limit"
}
}
```
2. **Invalid File Type**
```json
{
"error": {
"code": "INVALID_FILE_TYPE",
"message": "File type not allowed"
}
}
```
3. **S3 Upload Failed**
```json
{
"error": {
"code": "UPLOAD_FAILED",
"message": "Failed to upload file to storage"
}
}
```
---
## Checklist
- [ ] S3/MinIO client configured
- [ ] Upload service created
- [ ] Upload middleware configured
- [ ] File type validation implemented
- [ ] File size validation implemented
- [ ] Upload routes created
- [ ] Error handling implemented
- [ ] File deletion implemented
- [ ] Tests written
- [ ] Manual testing done
---
## Best Practices
1. **Validate Before Upload**: Check file type and size before uploading
2. **Unique Filenames**: Use UUID to prevent filename conflicts
3. **Organized Storage**: Use folder structure (courses/1/lessons/5/video.mp4)
4. **Error Handling**: Provide clear error messages
5. **Cleanup**: Delete files from S3 when deleting records
6. **Security**: Validate file content, not just extension
7. **Progress**: Consider upload progress for large files
---
## Advanced: Video Processing
For video processing (transcoding, thumbnails):
```javascript
const ffmpeg = require('fluent-ffmpeg');
async function processVideo(videoPath) {
// Generate thumbnail
await new Promise((resolve, reject) => {
ffmpeg(videoPath)
.screenshots({
timestamps: ['00:00:01'],
filename: 'thumbnail.jpg',
folder: './thumbnails'
})
.on('end', resolve)
.on('error', reject);
});
// Get video duration
const metadata = await new Promise((resolve, reject) => {
ffmpeg.ffprobe(videoPath, (err, metadata) => {
if (err) reject(err);
else resolve(metadata);
});
});
return {
duration: metadata.format.duration,
thumbnail: './thumbnails/thumbnail.jpg'
};
}
```

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---
description: How to create k6 load tests for API endpoints
---
# K6 Load Test Workflow
วิธีสร้าง k6 load test สำหรับ API endpoints ใน E-Learning Backend
## Prerequisites
1. ติดตั้ง k6:
```bash
# macOS
brew install k6
# หรือ download จาก https://k6.io/docs/getting-started/installation/
```
2. สร้าง folder สำหรับ tests:
```bash
mkdir -p Backend/tests/k6
```
## Step 1: ระบุ API Endpoints ที่ต้องการ Test
ดู API endpoints จาก:
- `Backend/src/controllers/` - ดู Route decorators (@Route, @Get, @Post, etc.)
- `Backend/public/swagger.json` - ดู OpenAPI spec (ถ้ามี)
### Available Controllers & Endpoints:
| Controller | Base Route | Key Endpoints |
|------------|------------|---------------|
| AuthController | `/api/auth` | `POST /login`, `POST /register-learner`, `POST /register-instructor`, `POST /refresh` |
| CoursesStudentController | `/api/students` | `GET /courses`, `POST /courses/{id}/enroll`, `GET /courses/{id}/learn` |
| CoursesInstructorController | `/api/instructors/courses` | `GET /`, `GET /{id}`, `POST /`, `PUT /{id}` |
| CategoriesController | `/api/categories` | `GET /`, `GET /{id}` |
| UserController | `/api/users` | `GET /me`, `PUT /me` |
| CertificateController | `/api/certificates` | `GET /{id}` |
## Step 2: สร้าง K6 Test Script
สร้างไฟล์ใน `Backend/tests/k6/` ตาม template นี้:
### Template: Basic Load Test
```javascript
// Backend/tests/k6/<test-name>.js
import http from 'k6/http';
import { check, sleep } from 'k6';
import { Rate, Trend } from 'k6/metrics';
// Custom metrics
const errorRate = new Rate('errors');
const responseTime = new Trend('response_time');
// Test configuration
export const options = {
// Ramp-up pattern
stages: [
{ duration: '30s', target: 10 }, // Ramp up to 10 users
{ duration: '1m', target: 10 }, // Stay at 10 users
{ duration: '30s', target: 50 }, // Ramp up to 50 users
{ duration: '1m', target: 50 }, // Stay at 50 users
{ duration: '30s', target: 0 }, // Ramp down
],
thresholds: {
http_req_duration: ['p(95)<500'], // 95% of requests < 500ms
errors: ['rate<0.1'], // Error rate < 10%
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:3000';
// Setup: Get auth token (runs once per VU)
export function setup() {
const loginRes = http.post(`${BASE_URL}/api/auth/login`, JSON.stringify({
email: 'test@example.com',
password: 'password123',
}), {
headers: { 'Content-Type': 'application/json' },
});
const token = loginRes.json('data.token');
return { token };
}
// Main test function
export default function (data) {
const headers = {
'Content-Type': 'application/json',
'Authorization': `Bearer ${data.token}`,
};
// Test endpoint
const res = http.get(`${BASE_URL}/api/endpoint`, { headers });
// Record metrics
responseTime.add(res.timings.duration);
errorRate.add(res.status !== 200);
// Assertions
check(res, {
'status is 200': (r) => r.status === 200,
'response time < 500ms': (r) => r.timings.duration < 500,
});
sleep(1); // Think time between requests
}
```
## Step 3: Test Scenarios ตามประเภท
### 3.1 Authentication Load Test
```javascript
// Backend/tests/k6/auth-load-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';
import { Rate } from 'k6/metrics';
const errorRate = new Rate('errors');
export const options = {
stages: [
{ duration: '30s', target: 20 },
{ duration: '1m', target: 20 },
{ duration: '30s', target: 0 },
],
thresholds: {
http_req_duration: ['p(95)<1000'],
errors: ['rate<0.05'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:3000';
export default function () {
// Test Login
const loginRes = http.post(`${BASE_URL}/api/auth/login`, JSON.stringify({
email: `user${__VU}@test.com`,
password: 'password123',
}), {
headers: { 'Content-Type': 'application/json' },
});
errorRate.add(loginRes.status !== 200);
check(loginRes, {
'login successful': (r) => r.status === 200,
'has token': (r) => r.json('data.token') !== undefined,
});
sleep(1);
}
```
### 3.2 Course Browsing Load Test (Student)
```javascript
// Backend/tests/k6/student-courses-load-test.js
import http from 'k6/http';
import { check, sleep, group } from 'k6';
import { Rate, Trend } from 'k6/metrics';
const errorRate = new Rate('errors');
const courseListTime = new Trend('course_list_time');
const courseLearningTime = new Trend('course_learning_time');
export const options = {
stages: [
{ duration: '30s', target: 30 },
{ duration: '2m', target: 30 },
{ duration: '30s', target: 0 },
],
thresholds: {
http_req_duration: ['p(95)<800'],
errors: ['rate<0.1'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:3000';
export function setup() {
const loginRes = http.post(`${BASE_URL}/api/auth/login`, JSON.stringify({
email: 'student@test.com',
password: 'password123',
}), {
headers: { 'Content-Type': 'application/json' },
});
return { token: loginRes.json('data.token') };
}
export default function (data) {
const headers = {
'Content-Type': 'application/json',
'Authorization': `Bearer ${data.token}`,
};
group('List Enrolled Courses', () => {
const res = http.get(`${BASE_URL}/api/students/courses`, { headers });
courseListTime.add(res.timings.duration);
errorRate.add(res.status !== 200);
check(res, { 'courses listed': (r) => r.status === 200 });
});
sleep(2);
group('Get Course Learning Page', () => {
const courseId = 1; // Use a valid course ID
const res = http.get(`${BASE_URL}/api/students/courses/${courseId}/learn`, { headers });
courseLearningTime.add(res.timings.duration);
errorRate.add(res.status !== 200 && res.status !== 403);
check(res, { 'learning page loaded': (r) => r.status === 200 || r.status === 403 });
});
sleep(1);
}
```
### 3.3 Instructor Course Management Load Test
```javascript
// Backend/tests/k6/instructor-courses-load-test.js
import http from 'k6/http';
import { check, sleep, group } from 'k6';
import { Rate } from 'k6/metrics';
const errorRate = new Rate('errors');
export const options = {
stages: [
{ duration: '30s', target: 10 },
{ duration: '1m', target: 10 },
{ duration: '30s', target: 0 },
],
thresholds: {
http_req_duration: ['p(95)<1000'],
errors: ['rate<0.1'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:3000';
export function setup() {
const loginRes = http.post(`${BASE_URL}/api/auth/login`, JSON.stringify({
email: 'instructor@test.com',
password: 'password123',
}), {
headers: { 'Content-Type': 'application/json' },
});
return { token: loginRes.json('data.token') };
}
export default function (data) {
const headers = {
'Content-Type': 'application/json',
'Authorization': `Bearer ${data.token}`,
};
group('List My Courses', () => {
const res = http.get(`${BASE_URL}/api/instructors/courses`, { headers });
errorRate.add(res.status !== 200);
check(res, { 'courses listed': (r) => r.status === 200 });
});
sleep(2);
group('Get Course Detail', () => {
const courseId = 1;
const res = http.get(`${BASE_URL}/api/instructors/courses/${courseId}`, { headers });
errorRate.add(res.status !== 200 && res.status !== 404);
check(res, { 'course detail loaded': (r) => r.status === 200 || r.status === 404 });
});
sleep(1);
}
```
### 3.4 Mixed Scenario (Realistic Load)
```javascript
// Backend/tests/k6/mixed-load-test.js
import http from 'k6/http';
import { check, sleep, group } from 'k6';
import { Rate } from 'k6/metrics';
import { randomIntBetween } from 'https://jslib.k6.io/k6-utils/1.2.0/index.js';
const errorRate = new Rate('errors');
export const options = {
scenarios: {
students: {
executor: 'ramping-vus',
startVUs: 0,
stages: [
{ duration: '30s', target: 50 },
{ duration: '2m', target: 50 },
{ duration: '30s', target: 0 },
],
exec: 'studentScenario',
},
instructors: {
executor: 'ramping-vus',
startVUs: 0,
stages: [
{ duration: '30s', target: 10 },
{ duration: '2m', target: 10 },
{ duration: '30s', target: 0 },
],
exec: 'instructorScenario',
},
},
thresholds: {
http_req_duration: ['p(95)<1000'],
errors: ['rate<0.1'],
},
};
const BASE_URL = __ENV.BASE_URL || 'http://localhost:3000';
function getToken(email, password) {
const res = http.post(`${BASE_URL}/api/auth/login`, JSON.stringify({ email, password }), {
headers: { 'Content-Type': 'application/json' },
});
return res.json('data.token');
}
export function studentScenario() {
const token = getToken('student@test.com', 'password123');
const headers = {
'Content-Type': 'application/json',
'Authorization': `Bearer ${token}`,
};
// Browse courses
const coursesRes = http.get(`${BASE_URL}/api/students/courses`, { headers });
check(coursesRes, { 'student courses ok': (r) => r.status === 200 });
sleep(randomIntBetween(1, 3));
}
export function instructorScenario() {
const token = getToken('instructor@test.com', 'password123');
const headers = {
'Content-Type': 'application/json',
'Authorization': `Bearer ${token}`,
};
// List courses
const coursesRes = http.get(`${BASE_URL}/api/instructors/courses`, { headers });
check(coursesRes, { 'instructor courses ok': (r) => r.status === 200 });
sleep(randomIntBetween(2, 5));
}
```
## Step 4: รัน Load Test
### Basic Run
```bash
# รันจาก Backend directory
k6 run tests/k6/<test-name>.js
```
### With Environment Variables
```bash
# ระบุ BASE_URL
k6 run -e BASE_URL=http://localhost:3000 tests/k6/<test-name>.js
# ระบุ VUs และ Duration แบบ simple
k6 run --vus 10 --duration 30s tests/k6/<test-name>.js
```
### Output to JSON
```bash
k6 run --out json=results.json tests/k6/<test-name>.js
```
### Output to InfluxDB (for Grafana)
```bash
k6 run --out influxdb=http://localhost:8086/k6 tests/k6/<test-name>.js
```
## Step 5: วิเคราะห์ผลลัพธ์
### Key Metrics to Watch:
- **http_req_duration**: Response time (p50, p90, p95, p99)
- **http_req_failed**: Failed request rate
- **http_reqs**: Requests per second (throughput)
- **vus**: Virtual users at any point
- **iterations**: Total completed iterations
### Thresholds ที่แนะนำ:
```javascript
thresholds: {
http_req_duration: ['p(95)<500'], // 95% < 500ms
http_req_duration: ['p(99)<1000'], // 99% < 1s
http_req_failed: ['rate<0.01'], // < 1% errors
http_reqs: ['rate>100'], // > 100 req/s
}
```
## Tips & Best Practices
1. **Test Data**: สร้าง test users ก่อนรัน load test
2. **Warm-up**: ใช้ ramp-up stages เพื่อไม่ให้ server shock
3. **Think Time**: ใส่ `sleep()` เพื่อจำลอง user behavior จริง
4. **Isolation**: รัน test บน environment แยก ไม่ใช่ production
5. **Baseline**: รัน test หลายรอบเพื่อหา baseline performance
6. **Monitor**: ดู server metrics (CPU, Memory, DB connections) ขณะรัน test

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---
description:
---

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---
description: How to setup the backend development environment
---
# Setup Development Environment
Follow these steps to setup the E-Learning Platform backend with TypeScript and TSOA on your local machine.
---
## Prerequisites
- Node.js 18+ and npm
- Docker and Docker Compose
- Git
---
## Step 1: Clone Repository
```bash
git clone <repository-url>
cd e-learning/Backend
```
---
## Step 2: Install Dependencies
// turbo
```bash
npm install
```
// turbo
Install TypeScript and TSOA:
```bash
npm install -D typescript @types/node @types/express ts-node nodemon
npm install tsoa swagger-ui-express
```
---
## Step 3: Initialize TypeScript
// turbo
Create `tsconfig.json`:
```bash
npx tsc --init
```
Update `tsconfig.json`:
```json
{
"compilerOptions": {
"target": "ES2020",
"module": "commonjs",
"lib": ["ES2020"],
"outDir": "./dist",
"rootDir": "./src",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"resolveJsonModule": true,
"experimentalDecorators": true,
"emitDecoratorMetadata": true
},
"include": ["src/**/*"],
"exclude": ["node_modules", "dist"]
}
```
---
## Step 4: Configure TSOA
Create `tsoa.json`:
```json
{
"entryFile": "src/app.ts",
"noImplicitAdditionalProperties": "throw-on-extras",
"controllerPathGlobs": ["src/controllers/**/*.controller.ts"],
"spec": {
"outputDirectory": "public",
"specVersion": 3,
"securityDefinitions": {
"jwt": {
"type": "http",
"scheme": "bearer",
"bearerFormat": "JWT"
}
}
},
"routes": {
"routesDir": "src/routes",
"middleware": "express",
"authenticationModule": "./src/middleware/auth.ts"
}
}
```
---
## Step 5: Setup Environment Variables
Copy example env file:
```bash
cp .env.example .env
```
Edit `.env`:
```bash
# Application
NODE_ENV=development
PORT=4000
APP_URL=http://localhost:4000
# Database
DATABASE_URL=postgresql://postgres:12345678@localhost:5432/elearning_dev
# MinIO/S3
S3_ENDPOINT=http://localhost:9000
S3_ACCESS_KEY=admin
S3_SECRET_KEY=12345678
S3_BUCKET_COURSES=courses
S3_BUCKET_VIDEOS=videos
S3_BUCKET_DOCUMENTS=documents
S3_BUCKET_IMAGES=images
S3_BUCKET_ATTACHMENTS=attachments
# JWT
JWT_SECRET=your-super-secret-jwt-key-change-in-production
JWT_EXPIRES_IN=24h
# Email (Mailhog)
SMTP_HOST=localhost
SMTP_PORT=1025
SMTP_FROM=noreply@elearning.local
```
---
## Step 4: Start Docker Services
// turbo
```bash
docker compose up -d
```
This starts:
- PostgreSQL (port 5432)
- MinIO (ports 9000, 9001)
- Mailhog (ports 1025, 8025)
- Adminer (port 8080)
---
## Step 6: Run Database Migrations
// turbo
```bash
npx prisma migrate dev
```
---
## Step 7: Seed Database
// turbo
```bash
npx prisma db seed
```
This creates:
- Default roles (Admin, Instructor, Student)
- Test users
- Sample categories
- Sample courses
---
## Step 8: Generate TSOA Routes
// turbo
```bash
npm run tsoa:gen
```
This generates:
- Routes in `src/routes/tsoa-routes.ts`
- Swagger spec in `public/swagger.json`
---
## Step 9: Start Development Server
// turbo
```bash
npm run dev
```
Server will start at http://localhost:4000
---
## Step 10: Verify Setup
// turbo
Test health endpoint:
```bash
curl http://localhost:4000/health
```
// turbo
Test login:
```bash
curl -X POST http://localhost:4000/api/auth/login \
-H "Content-Type: application/json" \
-d '{"username": "admin", "password": "admin123"}'
```
---
## Access Services
| Service | URL | Credentials |
|---------|-----|-------------|
| **Backend API** | http://localhost:4000 | - |
| **API Docs (Swagger)** | http://localhost:4000/api-docs | - |
| **MinIO Console** | http://localhost:9001 | admin / 12345678 |
| **Mailhog UI** | http://localhost:8025 | - |
| **Adminer** | http://localhost:8080 | postgres / 12345678 |
---
## Development Commands
```bash
# Start dev server (TypeScript)
npm run dev
# Build TypeScript
npm run build
# Generate TSOA routes and Swagger
npm run tsoa:gen
# Run tests
npm test
# Run linter
npm run lint
# Format code
npm run format
# Generate Prisma Client
npx prisma generate
# View database in Prisma Studio
npx prisma studio
# Reset database (WARNING: deletes all data)
npx prisma migrate reset
```
---
## Troubleshooting
### Port Already in Use
```bash
# Find process using port
lsof -i :4000
# Kill process
kill -9 <PID>
```
### Database Connection Error
```bash
# Check if PostgreSQL is running
docker ps | grep postgres
# Check logs
docker logs elearning-postgres
# Restart PostgreSQL
docker restart elearning-postgres
```
### Prisma Client Error
```bash
# Regenerate client
npx prisma generate
# Clear node_modules
rm -rf node_modules
npm install
```
---
## Checklist
- [ ] Node.js 18+ installed
- [ ] Docker installed and running
- [ ] Repository cloned
- [ ] Dependencies installed
- [ ] `.env` file configured
- [ ] Docker services running
- [ ] Database migrated
- [ ] Database seeded
- [ ] Dev server running
- [ ] Health check passing
- [ ] Login test successful
---
## Next Steps
- Read [Backend Development Rules](../.agent/rules.md)
- Follow [Create API Endpoint](./create-api-endpoint.md) workflow
- Review [Agent Skills](../docs/agent_skills_backend.md)

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---
description: How to test backend APIs and services
---
# Testing Workflow
Follow these steps to write and run tests for the E-Learning Platform backend using TypeScript and Jest.
---
## Test Structure
```
tests/
├── unit/ # Unit tests (services, utilities)
├── integration/ # Integration tests (API endpoints)
├── fixtures/ # Test data
└── setup.js # Test setup
```
---
## Step 1: Setup Test Environment
Create `tests/setup.ts`:
```typescript
import { PrismaClient } from '@prisma/client';
import bcrypt from 'bcrypt';
const prisma = new PrismaClient();
beforeAll(async () => {
// Setup test database
await prisma.$executeRaw`TRUNCATE TABLE "User" CASCADE`;
// Create test data
await createTestUsers();
await createTestCourses();
});
afterAll(async () => {
// Cleanup
await prisma.$disconnect();
});
async function createTestUsers() {
// Create admin, instructor, student
await prisma.user.createMany({
data: [
{
username: 'admin',
email: 'admin@test.com',
password: await bcrypt.hash('password123', 10),
role_id: 1
},
{
username: 'instructor1',
email: 'instructor@test.com',
password: await bcrypt.hash('password123', 10),
role_id: 2
},
{
username: 'student1',
email: 'student@test.com',
password: await bcrypt.hash('password123', 10),
role_id: 3
}
]
});
}
```
---
## Step 2: Write Unit Tests
Create `tests/unit/course.service.test.ts`:
```typescript
import { courseService } from '../../src/services/course.service';
import { PrismaClient } from '@prisma/client';
const prisma = new PrismaClient();
describe('Course Service', () => {
describe('createCourse', () => {
it('should create course with valid data', async () => {
const courseData = {
title: { th: 'ทดสอบ', en: 'Test' },
description: { th: 'รายละเอียด', en: 'Description' },
category_id: 1,
price: 990,
is_free: false
};
const course = await courseService.create(courseData, 1);
expect(course).toHaveProperty('id');
expect(course.status).toBe('DRAFT');
expect(course.title.th).toBe('ทดสอบ');
});
it('should throw error with invalid category', async () => {
const courseData = {
title: { th: 'ทดสอบ', en: 'Test' },
category_id: 9999, // Invalid
price: 990
};
await expect(
courseService.create(courseData, 1)
).rejects.toThrow();
});
});
describe('checkLessonAccess', () => {
it('should allow access to unlocked lesson', async () => {
const result = await courseService.checkLessonAccess(1, 1);
expect(result.allowed).toBe(true);
});
it('should deny access to locked lesson', async () => {
const result = await courseService.checkLessonAccess(1, 5);
expect(result.allowed).toBe(false);
expect(result.reason).toBe('incomplete_prerequisites');
});
});
});
```
---
## Step 3: Write Integration Tests
Create `tests/integration/courses.test.ts`:
```typescript
import request from 'supertest';
import app from '../../src/app';
describe('Course API', () => {
let adminToken: string;
let instructorToken: string;
let studentToken: string;
beforeAll(async () => {
// Login as different users
const adminRes = await request(app)
.post('/api/auth/login')
.send({ username: 'admin', password: 'password123' });
adminToken = adminRes.body.token;
const instructorRes = await request(app)
.post('/api/auth/login')
.send({ username: 'instructor1', password: 'password123' });
instructorToken = instructorRes.body.token;
const studentRes = await request(app)
.post('/api/auth/login')
.send({ username: 'student1', password: 'password123' });
studentToken = studentRes.body.token;
});
describe('POST /api/instructor/courses', () => {
it('should create course as instructor', async () => {
const courseData = {
title: { th: 'คอร์สใหม่', en: 'New Course' },
description: { th: 'รายละเอียด', en: 'Description' },
category_id: 1,
price: 990,
is_free: false
};
const response = await request(app)
.post('/api/instructor/courses')
.set('Authorization', `Bearer ${instructorToken}`)
.send(courseData);
expect(response.status).toBe(201);
expect(response.body).toHaveProperty('id');
expect(response.body.status).toBe('DRAFT');
});
it('should return 403 as student', async () => {
const response = await request(app)
.post('/api/instructor/courses')
.set('Authorization', `Bearer ${studentToken}`)
.send({});
expect(response.status).toBe(403);
});
it('should return 401 without auth', async () => {
const response = await request(app)
.post('/api/instructor/courses')
.send({});
expect(response.status).toBe(401);
});
});
describe('GET /api/courses', () => {
it('should list public courses', async () => {
const response = await request(app)
.get('/api/courses')
.query({ page: 1, limit: 10 });
expect(response.status).toBe(200);
expect(response.body).toHaveProperty('data');
expect(response.body).toHaveProperty('pagination');
expect(Array.isArray(response.body.data)).toBe(true);
});
it('should filter by category', async () => {
const response = await request(app)
.get('/api/courses')
.query({ category: 1 });
expect(response.status).toBe(200);
response.body.data.forEach((course: any) => {
expect(course.category_id).toBe(1);
});
});
});
});
```
---
## Step 4: Test File Uploads
Create `tests/integration/file-upload.test.ts`:
```typescript
import request from 'supertest';
import app from '../../src/app';
import path from 'path';
describe('File Upload API', () => {
let instructorToken: string;
beforeAll(async () => {
const res = await request(app)
.post('/api/auth/login')
.send({ username: 'instructor1', password: 'password123' });
instructorToken = res.body.token;
});
describe('POST /api/instructor/lessons/:lessonId/attachments', () => {
it('should upload PDF attachment', async () => {
const filePath = path.join(__dirname, '../fixtures/test.pdf');
const response = await request(app)
.post('/api/instructor/courses/1/lessons/1/attachments')
.set('Authorization', `Bearer ${instructorToken}`)
.attach('file', filePath)
.field('description_th', 'ไฟล์ทดสอบ')
.field('description_en', 'Test file');
expect(response.status).toBe(201);
expect(response.body).toHaveProperty('file_name');
expect(response.body.mime_type).toBe('application/pdf');
});
it('should reject invalid file type', async () => {
const filePath = path.join(__dirname, '../fixtures/test.exe');
const response = await request(app)
.post('/api/instructor/courses/1/lessons/1/attachments')
.set('Authorization', `Bearer ${instructorToken}`)
.attach('file', filePath);
expect(response.status).toBe(422);
expect(response.body.error.code).toBe('INVALID_FILE_TYPE');
});
it('should reject file too large', async () => {
// Mock large file
const response = await request(app)
.post('/api/instructor/courses/1/lessons/1/attachments')
.set('Authorization', `Bearer ${instructorToken}`)
.attach('file', Buffer.alloc(101 * 1024 * 1024)); // 101 MB
expect(response.status).toBe(422);
expect(response.body.error.code).toBe('FILE_TOO_LARGE');
});
});
});
```
---
## Step 5: Run Tests
// turbo
Run all tests:
```bash
npm test
```
// turbo
Run specific test file:
```bash
npm test -- courses.test.js
```
// turbo
Run with coverage:
```bash
npm test -- --coverage
```
// turbo
Run in watch mode:
```bash
npm test -- --watch
```
---
## Test Configuration
Update `package.json`:
```json
{
"scripts": {
"test": "jest --runInBand",
"test:watch": "jest --watch",
"test:coverage": "jest --coverage"
},
"jest": {
"preset": "ts-jest",
"testEnvironment": "node",
"coveragePathIgnorePatterns": ["/node_modules/"],
"setupFilesAfterEnv": ["<rootDir>/tests/setup.ts"],
"testMatch": ["**/tests/**/*.test.ts"],
"moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json", "node"]
}
}
```
---
## Mocking
### Mock Prisma
```javascript
jest.mock('@prisma/client', () => {
const mockPrisma = {
user: {
findUnique: jest.fn(),
create: jest.fn()
},
course: {
findMany: jest.fn(),
create: jest.fn()
}
};
return { PrismaClient: jest.fn(() => mockPrisma) };
});
```
### Mock S3/MinIO
```javascript
jest.mock('../src/services/s3.service', () => ({
uploadFile: jest.fn().mockResolvedValue({
url: 'https://s3.example.com/test.pdf',
key: 'test.pdf'
}),
deleteFile: jest.fn().mockResolvedValue(true)
}));
```
---
## Test Fixtures
Create `tests/fixtures/courses.json`:
```json
{
"validCourse": {
"title": { "th": "คอร์สทดสอบ", "en": "Test Course" },
"description": { "th": "รายละเอียด", "en": "Description" },
"category_id": 1,
"price": 990,
"is_free": false
},
"invalidCourse": {
"title": "Invalid"
}
}
```
Use in tests:
```javascript
const fixtures = require('../fixtures/courses.json');
it('should create course', async () => {
const response = await request(app)
.post('/api/instructor/courses')
.send(fixtures.validCourse);
expect(response.status).toBe(201);
});
```
---
## Checklist
- [ ] Test setup configured
- [ ] Unit tests written for services
- [ ] Integration tests written for API endpoints
- [ ] File upload tests included
- [ ] Authentication/authorization tested
- [ ] Error cases tested
- [ ] All tests passing
- [ ] Coverage > 80%
---
## Best Practices
1. **Test Isolation**: Each test should be independent
2. **Descriptive Names**: Use clear test descriptions
3. **AAA Pattern**: Arrange, Act, Assert
4. **Mock External Services**: Don't call real APIs in tests
5. **Test Edge Cases**: Not just happy path
6. **Clean Up**: Reset database state between tests
7. **Fast Tests**: Keep tests fast (< 5 seconds total)

View file

@ -0,0 +1,75 @@
import { Body, Get, Path, Put, Request, Response, Route, Security, SuccessResponse, Tags } from 'tsoa';
import { ValidationError } from '../middleware/errorHandler';
import { RecommendedCoursesService } from '../services/RecommendedCourses.service';
import {
ListApprovedCoursesResponse,
GetCourseByIdResponse,
ToggleRecommendedRequest,
ToggleRecommendedResponse
} from '../types/RecommendedCourses.types';
@Route('api/admin/recommended-courses')
@Tags('Admin/RecommendedCourses')
export class RecommendedCoursesController {
/**
* ()
* List all approved courses (for managing recommendations)
*/
@Get()
@Security('jwt', ['admin'])
@SuccessResponse('200', 'Approved courses retrieved successfully')
@Response('401', 'Unauthorized')
@Response('403', 'Forbidden - Admin only')
public async listApprovedCourses(@Request() request: any): Promise<ListApprovedCoursesResponse> {
const token = request.headers.authorization?.replace('Bearer ', '');
if (!token) {
throw new ValidationError('No token provided');
}
return await RecommendedCoursesService.listApprovedCourses();
}
/**
* ID
* Get course by ID
* @param courseId - / Course ID
*/
@Get('{courseId}')
@Security('jwt', ['admin'])
@SuccessResponse('200', 'Course retrieved successfully')
@Response('400', 'Course is not approved')
@Response('401', 'Unauthorized')
@Response('403', 'Forbidden - Admin only')
@Response('404', 'Course not found')
public async getCourseById(@Request() request: any, @Path() courseId: number): Promise<GetCourseByIdResponse> {
const token = request.headers.authorization?.replace('Bearer ', '');
if (!token) {
throw new ValidationError('No token provided');
}
return await RecommendedCoursesService.getCourseById(courseId);
}
/**
*
* Toggle course recommendation status
* @param courseId - / Course ID
*/
@Put('{courseId}/toggle')
@Security('jwt', ['admin'])
@SuccessResponse('200', 'Recommendation status updated successfully')
@Response('400', 'Only approved courses can be recommended')
@Response('401', 'Unauthorized')
@Response('403', 'Forbidden - Admin only')
@Response('404', 'Course not found')
public async toggleRecommended(
@Request() request: any,
@Path() courseId: number,
@Body() body: ToggleRecommendedRequest
): Promise<ToggleRecommendedResponse> {
const token = request.headers.authorization?.replace('Bearer ', '');
if (!token) {
throw new ValidationError('No token provided');
}
return await RecommendedCoursesService.toggleRecommended(token, courseId, body.is_recommended);
}
}

View file

@ -1482,7 +1482,7 @@ export class ChaptersLessonService {
*/
async updateQuiz(request: UpdateQuizInput): Promise<UpdateQuizResponse> {
try {
const { token, course_id, lesson_id, title, description, passing_score, time_limit, shuffle_questions, shuffle_choices, show_answers_after_completion, is_skippable } = request;
const { token, course_id, lesson_id, title, description, passing_score, time_limit, shuffle_questions, shuffle_choices, show_answers_after_completion, is_skippable, allow_multiple_attempts } = request;
const decodedToken = jwt.verify(token, config.jwt.secret) as { id: number };
await CoursesInstructorService.validateCourseStatus(course_id);
@ -1513,6 +1513,7 @@ export class ChaptersLessonService {
if (shuffle_choices !== undefined) updateData.shuffle_choices = shuffle_choices;
if (show_answers_after_completion !== undefined) updateData.show_answers_after_completion = show_answers_after_completion;
if (is_skippable !== undefined) updateData.is_skippable = is_skippable;
if (allow_multiple_attempts !== undefined) updateData.allow_multiple_attempts = allow_multiple_attempts;
// Update the quiz
const updatedQuiz = await prisma.quiz.update({

View file

@ -0,0 +1,235 @@
import { prisma } from '../config/database';
import { config } from '../config';
import { logger } from '../config/logger';
import { NotFoundError, ValidationError } from '../middleware/errorHandler';
import jwt from 'jsonwebtoken';
import { getPresignedUrl } from '../config/minio';
import {
ListApprovedCoursesResponse,
GetCourseByIdResponse,
ToggleRecommendedResponse,
RecommendedCourseData
} from '../types/RecommendedCourses.types';
import { auditService } from './audit.service';
import { AuditAction } from '@prisma/client';
export class RecommendedCoursesService {
/**
* List all approved courses (for admin to manage recommendations)
*/
static async listApprovedCourses(): Promise<ListApprovedCoursesResponse> {
try {
const courses = await prisma.course.findMany({
where: { status: 'APPROVED' },
orderBy: [
{ is_recommended: 'desc' },
{ updated_at: 'desc' }
],
include: {
category: {
select: { id: true, name: true }
},
creator: {
select: { id: true, username: true, email: true }
},
instructors: {
include: {
user: {
select: { id: true, username: true, email: true }
}
}
},
chapters: {
include: {
lessons: true
}
}
}
});
const data = await Promise.all(courses.map(async (course) => {
let thumbnail_presigned_url: string | null = null;
if (course.thumbnail_url) {
try {
thumbnail_presigned_url = await getPresignedUrl(course.thumbnail_url, 3600);
} catch (err) {
logger.warn(`Failed to generate presigned URL for thumbnail: ${err}`);
}
}
return {
id: course.id,
title: course.title as { th: string; en: string },
slug: course.slug,
description: course.description as { th: string; en: string },
thumbnail_url: thumbnail_presigned_url,
price: Number(course.price),
is_free: course.is_free,
have_certificate: course.have_certificate,
is_recommended: course.is_recommended,
status: course.status,
created_at: course.created_at,
updated_at: course.updated_at,
creator: course.creator,
category: course.category ? {
id: course.category.id,
name: course.category.name as { th: string; en: string }
} : null,
instructors: course.instructors.map(i => ({
user_id: i.user_id,
is_primary: i.is_primary,
user: i.user
})),
chapters_count: course.chapters.length,
lessons_count: course.chapters.reduce((sum, ch) => sum + ch.lessons.length, 0)
} as RecommendedCourseData;
}));
return {
code: 200,
message: 'Approved courses retrieved successfully',
data,
total: data.length
};
} catch (error) {
logger.error('Failed to list approved courses', { error });
throw error;
}
}
/**
* Get course by ID (for admin to view details)
*/
static async getCourseById(courseId: number): Promise<GetCourseByIdResponse> {
try {
const course = await prisma.course.findUnique({
where: { id: courseId },
include: {
category: {
select: { id: true, name: true }
},
creator: {
select: { id: true, username: true, email: true }
},
instructors: {
include: {
user: {
select: { id: true, username: true, email: true }
}
}
},
chapters: {
include: {
lessons: true
}
}
}
});
if (!course) {
throw new NotFoundError('Course not found');
}
if (course.status !== 'APPROVED') {
throw new ValidationError('Course is not approved');
}
// Generate presigned URL for thumbnail
let thumbnail_presigned_url: string | null = null;
if (course.thumbnail_url) {
try {
thumbnail_presigned_url = await getPresignedUrl(course.thumbnail_url, 3600);
} catch (err) {
logger.warn(`Failed to generate presigned URL for thumbnail: ${err}`);
}
}
const data: RecommendedCourseData = {
id: course.id,
title: course.title as { th: string; en: string },
slug: course.slug,
description: course.description as { th: string; en: string },
thumbnail_url: thumbnail_presigned_url,
price: Number(course.price),
is_free: course.is_free,
have_certificate: course.have_certificate,
is_recommended: course.is_recommended,
status: course.status,
created_at: course.created_at,
updated_at: course.updated_at,
creator: course.creator,
category: course.category ? {
id: course.category.id,
name: course.category.name as { th: string; en: string }
} : null,
instructors: course.instructors.map(i => ({
user_id: i.user_id,
is_primary: i.is_primary,
user: i.user
})),
chapters_count: course.chapters.length,
lessons_count: course.chapters.reduce((sum, ch) => sum + ch.lessons.length, 0)
};
return {
code: 200,
message: 'Course retrieved successfully',
data
};
} catch (error) {
logger.error('Failed to get course by ID', { error });
throw error;
}
}
/**
* Toggle course recommendation status
*/
static async toggleRecommended(
token: string,
courseId: number,
isRecommended: boolean
): Promise<ToggleRecommendedResponse> {
try {
const decoded = jwt.verify(token, config.jwt.secret) as { id: number };
const course = await prisma.course.findUnique({ where: { id: courseId } });
if (!course) {
throw new NotFoundError('Course not found');
}
if (course.status !== 'APPROVED') {
throw new ValidationError('Only approved courses can be recommended');
}
const updatedCourse = await prisma.course.update({
where: { id: courseId },
data: { is_recommended: isRecommended }
});
// Audit log
await auditService.logSync({
userId: decoded.id,
action: isRecommended ? AuditAction.UPDATE_COURSE : AuditAction.UPDATE_COURSE,
entityType: 'Course',
entityId: courseId,
oldValue: { is_recommended: course.is_recommended },
newValue: { is_recommended: isRecommended },
metadata: { action: 'toggle_recommended' }
});
return {
code: 200,
message: `Course ${isRecommended ? 'marked as recommended' : 'unmarked as recommended'} successfully`,
data: {
id: updatedCourse.id,
is_recommended: updatedCourse.is_recommended
}
};
} catch (error) {
logger.error('Failed to toggle recommended status', { error });
throw error;
}
}
}

View file

@ -9,7 +9,7 @@ import { getPresignedUrl } from '../config/minio';
export class CoursesService {
async ListCourses(input: ListCoursesInput): Promise<listCourseResponse> {
try {
const { category_id, page = 1, limit = 10, random = false } = input;
const { category_id, is_recommended, page = 1, limit = 10, random = false } = input;
const where: Prisma.CourseWhereInput = {
status: 'APPROVED',
@ -19,6 +19,10 @@ export class CoursesService {
where.category_id = category_id;
}
if (is_recommended !== undefined) {
where.is_recommended = is_recommended;
}
// Get total count for pagination
const total = await prisma.course.count({ where });
const totalPages = Math.ceil(total / limit);

View file

@ -36,6 +36,7 @@ export interface QuizData {
shuffle_choices: boolean;
show_answers_after_completion: boolean;
is_skippable: boolean;
allow_multiple_attempts: boolean;
created_at: Date;
created_by: number;
updated_at: Date | null;
@ -598,6 +599,7 @@ export interface UpdateQuizInput {
shuffle_choices?: boolean;
show_answers_after_completion?: boolean;
is_skippable?: boolean;
allow_multiple_attempts?: boolean;
}
/**
@ -685,4 +687,5 @@ export interface UpdateQuizBody {
shuffle_choices?: boolean;
show_answers_after_completion?: boolean;
is_skippable?: boolean;
allow_multiple_attempts?: boolean;
}

View file

@ -0,0 +1,70 @@
import { MultiLanguageText } from './index';
// ============================================
// Request Types
// ============================================
export interface ToggleRecommendedRequest {
is_recommended: boolean;
}
// ============================================
// Response Types
// ============================================
export interface RecommendedCourseData {
id: number;
title: MultiLanguageText;
slug: string;
description: MultiLanguageText;
thumbnail_url: string | null;
price: number;
is_free: boolean;
have_certificate: boolean;
is_recommended: boolean;
status: string;
created_at: Date;
updated_at: Date | null;
creator: {
id: number;
username: string;
email: string;
};
category: {
id: number;
name: MultiLanguageText;
} | null;
instructors: Array<{
user_id: number;
is_primary: boolean;
user: {
id: number;
username: string;
email: string;
};
}>;
chapters_count: number;
lessons_count: number;
}
export interface ListApprovedCoursesResponse {
code: number;
message: string;
data: RecommendedCourseData[];
total: number;
}
export interface GetCourseByIdResponse {
code: number;
message: string;
data: RecommendedCourseData;
}
export interface ToggleRecommendedResponse {
code: number;
message: string;
data: {
id: number;
is_recommended: boolean;
};
}

View file

@ -2,6 +2,7 @@ import { Course } from '@prisma/client';
export interface ListCoursesInput {
category_id?: number;
is_recommended?: boolean;
page?: number;
limit?: number;
random?: boolean;