chore(docs): consolidate 22 audit files from root into docs/audits/
Root directory had accumulated audit/exploration markdown files cluttering the project root. Moved all audit-related files to docs/audits/ with a README.md index, and updated cross-references in K6_LOAD_TESTING_GUIDE.md and README_FRONTEND_DOCS.md. Co-Authored-By: Paperclip <noreply@paperclip.ing>
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Ho Ngoc Hai
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docs/audits/API_AUDIT_REPORT.md
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docs/audits/API_AUDIT_REPORT.md
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# GoodGo Platform API - Comprehensive Code Audit Report
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**Date:** April 10, 2026
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**Scope:** `/apps/api/` | NestJS Backend
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**Codebase Size:** ~22K LOC (prod) | ~20K LOC (tests) | 207 test files
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---
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## 1. MODULE STRUCTURE & DDD ADHERENCE
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### ✅ **STRONG: Full DDD Layer Implementation**
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All 16 modules follow strict DDD separation:
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- **Modules:** auth, listings, payments, subscriptions, admin, analytics, search, notifications, mcp, metrics, agents, inquiries, leads, reviews, health, shared
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- **Layer Structure:** `domain/` (entities, VOs, repositories) → `application/` (commands, queries, handlers) → `infrastructure/` (services, strategies, repos) → `presentation/` (controllers, DTOs, guards)
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- **CQRS Pattern:** Consistently implemented with CommandBus & QueryBus in auth, payments, subscriptions modules
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- **All MVP modules present:** ✓ auth, ✓ listings, ✓ payments, ✓ subscriptions, ✓ admin, ✓ analytics, ✓ search, ✓ notifications, ✓ mcp, ✓ metrics + 6 additional (agents, inquiries, leads, reviews, health)
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**Severity:** LOW (architecture excellent)
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---
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## 2. CODE HEALTH & TYPE SAFETY
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### ✅ **EXCELLENT: TypeScript Strict Mode**
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```json
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"strict": true
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"noUncheckedIndexedAccess": true
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"noImplicitOverride": true
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"noPropertyAccessFromIndexSignature": true
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"skipLibCheck": false
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```
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- **Result Type Pattern:** Implemented in `shared/domain/result.ts` with `.match()`, `.map()`, `.andThen()`
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- **Error Handling:** 46 instances of explicit throws (exceptions over bare throws)
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- **No type shortcuts:** Zero `: any` types in production code
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- **No console logs:** Enforced via Pino structured logging
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- **No hardcoded values:** All secrets use `process.env` with validation
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**Severity:** LOW (exemplary)
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---
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## 3. TESTING
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### ✅ **COMPREHENSIVE: 207 test files, ~50% code coverage**
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- **Test Structure:** Unit tests (`.spec.ts`), integration tests (`.integration.spec.ts`)
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- **Test Framework:** Vitest with Node environment
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- **Key Coverage:**
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- Auth handlers: 8 spec files (register, login, verify-kyc, deletion, export-user)
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- Payments: Full CQRS handlers tested
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- Listings: Media storage, status updates
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- Subscriptions: Quota, metering, upgrades
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- **Test Ratio:** ~0.93:1 (20.4K test LOC : 21.9K prod LOC)
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- **Missing:** No e2e tests configured; only unit + integration
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⚠️ **MEDIUM:** Integration test suite not wired to CI/CD; needs `vitest.integration.config.ts` execution
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**Severity:** MEDIUM (strong unit coverage, missing e2e)
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---
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## 4. DEPENDENCIES & SECURITY
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### ✅ **CURRENT: All dependencies up-to-date (NestJS 11, Prisma 7.7, TypeScript 6)**
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```
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@nestjs/*: ^11.0
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@prisma/*: ^7.7.0
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typescript: ^6.0.2
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passport: ^0.7.0, @nestjs/jwt: ^11.0.2
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helmet: ^8.1.0
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sentry: ^10.47.0
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```
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**Audit Findings:**
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- ✅ No known CVEs in direct dependencies
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- ✅ Helmet configured with CSP, HSTS, COEP, COOP
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- ✅ Sentry profiling enabled for error tracking
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- ✅ Database adapter: `@prisma/adapter-pg` v7.7.0
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⚠️ **LOW:** Package lock strategy unclear (monorepo uses `workspace:*`); ensure pnpm-lock.yaml is committed
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**Severity:** LOW (dependencies clean)
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---
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## 5. SECURITY AUDIT
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### ✅ **STRONG: Multi-layered security controls**
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#### **Environment Validation** (CRITICAL)
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```typescript
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// Enforced at app bootstrap (main.ts)
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- ALWAYS_REQUIRED: JWT_SECRET, JWT_REFRESH_SECRET
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- PRODUCTION_ONLY: DATABASE_URL, CORS_ORIGINS, REDIS_HOST, KYC_ENCRYPTION_KEY
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- MINIMUM_SECRET_LENGTH: 32 chars (256-bit equiv.)
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- FORBIDDEN_VALUES: placeholder, test, default, change_me, xxx, etc.
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```
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**Severity:** LOW (excellent validation)
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#### **Authentication & Authorization**
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- ✅ JWT + refresh token strategy (15m expiry, audience/issuer set)
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- ✅ Passport.js guards: JwtAuthGuard, LocalAuthGuard, RolesGuard
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- ✅ Multi-OAuth: Google, Zalo
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- ✅ Secrets retrieved via ConfigService, not environment directly
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#### **CSRF Protection**
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- ✅ Double-submit cookie pattern (CsrfMiddleware in shared)
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- ✅ X-CSRF-Token header validated on state-changing methods
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- ✅ Health endpoints excluded to prevent cookie pollution
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#### **Input Sanitization**
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- ✅ Global ValidationPipe: whitelist, forbidNonWhitelisted, transform enabled
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- ✅ SanitizeInputMiddleware applied to all routes (using `sanitize-html`)
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- ✅ Prisma uses parameterized queries (no SQL injection risk detected)
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- Only `Prisma.sql` template literal with `Prisma.join()` found (safe)
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#### **Rate Limiting**
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- ✅ ThrottlerModule with per-route overrides:
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- default: 60 req/60s
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- auth: 10 req/60s
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- payment-callback: 20 req/60s
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#### **CORS Configuration**
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- ✅ Configurable allowed origins (required in production)
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- ✅ Credentials: true, Methods: GET/POST/PUT/PATCH/DELETE, maxAge: 86400
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#### **Security Headers (Helmet)**
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```
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- Content-Security-Policy: 'self' + CDN exceptions (reviewable)
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- HSTS: 31536000s, preload enabled
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- X-Frame-Options: deny
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- Cross-Origin policies: COEP, COOP enabled
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- Referrer-Policy: strict-origin-when-cross-origin
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```
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⚠️ **MEDIUM:** CSP allows `'unsafe-inline'` for scripts/styles
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```javascript
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scriptSrc: ["'self'", "'unsafe-inline'", 'https://cdn.jsdelivr.net']
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```
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**Recommendation:** Move to nonce-based CSP in production.
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#### **Data Protection**
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- ✅ KYC data encrypted at rest (Prisma field encryption via KYC_ENCRYPTION_KEY)
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- ✅ Soft deletes: `deletedAt`, `deletionScheduledAt` fields (GDPR compliance path)
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- ✅ User deletion workflow: RequestUserDeletion → 30-day grace → ProcessScheduledDeletions
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⚠️ **LOW:** No mention of bcrypt cost factor; assume default (10) is acceptable
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**Severity:** MEDIUM (CSP policy review needed; otherwise strong)
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---
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## 6. DATABASE & SCHEMA
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### ✅ **SOLID: Prisma 7.7 + PostgreSQL 16 + PostGIS**
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- **Schema File:** `/prisma/schema.prisma` (well-structured)
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- **Migrations:** 11 SQL migrations tracked (evolution visible)
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- **Key Tables:**
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- User (with soft delete, KYC status, roles: BUYER/SELLER/AGENT/ADMIN)
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- RefreshToken (TTL-based, indexed by userId)
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- OAuthAccount (Google, Zalo providers)
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- Listing, Property (with PostGIS geometry for geo queries)
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- Subscription, Payment, Transaction
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- Inquiry, Review, SavedSearch
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**Indexing Strategy:**
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- ✅ Single-column indexes on hot queries (role, kycStatus, isActive, createdAt)
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- ✅ Composite indexes (role + isActive + createdAt DESC) for admin queries
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- ✅ Foreign keys with cascade rules checked
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⚠️ **LOW:** No explicit CASCADE/RESTRICT rules visible; verify orphaned data handling in deletes
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**Severity:** LOW (schema well-designed)
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---
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## 7. API ENDPOINTS & ROUTES
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### ✅ **COMPREHENSIVE: 105+ route decorators across 16 modules**
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**Endpoints by module:**
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- **Auth:** Register, Login, RefreshToken, VerifyKyc, RequestUserDeletion, ExportUserData, GetProfile, OAuthCallbacks
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- **Listings:** CreateListing, UpdateListing, GetListing, ListListings, UpdateStatus, UploadMedia, DeleteMedia
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- **Payments:** CreatePayment, GetPaymentStatus, ListTransactions, HandleCallback, RefundPayment
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- **Subscriptions:** GetPlan, CreateSubscription, UpgradeSubscription, CancelSubscription, CheckQuota, GetBillingHistory
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- **Search:** FullTextSearch, GeoSearch, SavedSearches
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- **Admin:** UserModeration, Analytics Dashboard, PaymentReports
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- **Notifications:** GetHistory, UpdatePreferences
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- **Reviews:** CreateReview, ListReviews, UpdateReview
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- **Agents:** GetAgentProfile, ListAgents, GetAgentStats
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- **Analytics:** PriceAnalytics, MarketReports, MetricsExport
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- **MCP:** TransportController (Model Context Protocol server transport)
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**Versioning:** Global `/api/v1/` prefix with health endpoints excluded
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**Severity:** LOW (routes well-organized)
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---
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## 8. CONFIGURATION & ENV MANAGEMENT
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### ✅ **STRICT: Comprehensive env validation**
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- **Validation Location:** `shared/infrastructure/env-validation.ts` (called at bootstrap)
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- **Error Handling:** Throws on missing critical vars (fail-fast)
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- **Warnings:** Logged for optional payment/storage vars if unset
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- **Supported Payment Gateways:**
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- VNPay (VNPAY_TMN_CODE, VNPAY_HASH_SECRET)
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- MoMo (MOMO_PARTNER_CODE, MOMO_ACCESS_KEY, MOMO_SECRET_KEY)
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- ZaloPay (ZALOPAY_APP_ID, ZALOPAY_KEY1, ZALOPAY_KEY2)
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- **Supported OAuth:** Google, Zalo
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- **Storage:** MinIO (MINIO_ACCESS_KEY, MINIO_SECRET_KEY, MINIO_ENDPOINT, MINIO_BUCKET)
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- **Infrastructure:** PostgreSQL, Redis, Sentry, Typesense
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**Missing .env.example:** ⚠️ MEDIUM - No `.env.example` or `.env.sample` found; developers must infer required vars.
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**Severity:** MEDIUM (validation strong, documentation missing)
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---
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## 9. BUILD, LINT & QUALITY
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### ✅ **CURRENT: ESLint + TypeScript with strict checks**
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- **ESLint:** Monorepo-level config at root (`eslint.config.mjs`)
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- **TypeScript:** `tsc --noEmit` for type-checking without emit
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- **Build:** NestJS CLI (`nest build`) outputs to `dist/`
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- **Scripts:**
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- `npm run lint` - ESLint on `src/`
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- `npm run test` - Vitest unit tests
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- `npm run test:integration` - Integration suite
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- `npm run typecheck` - Type safety only
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⚠️ **LOW:** No pre-commit hooks configured (can be added via Husky); CI/CD not shown
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**Severity:** LOW (tooling solid, CI/CD unknown)
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---
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## 10. MONITORING & OBSERVABILITY
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### ✅ **GOOD: Sentry + Prometheus + Pino**
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- **Error Tracking:** Sentry integration with profiling
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- **Metrics:** Prometheus client (HTTP request latency, payments processed, subscriptions active)
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- **Logging:** Pino with structured JSON output (pino-pretty for dev)
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- **Health Checks:** Terminus module with Prisma + Redis indicators
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**MCP Module:** Connected to AI service (configurable base URL)
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**Severity:** LOW (solid observability)
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---
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## 11. CRITICAL FINDINGS SUMMARY
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| Issue | Severity | Location | Remediation |
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|-------|----------|----------|-------------|
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| CSP allows `'unsafe-inline'` scripts | MEDIUM | `main.ts` line 61 | Use nonce-based CSP with hash-based fallback |
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| Missing `.env.example` | MEDIUM | Root project | Create `.env.example` with all required vars |
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| No e2e tests in CI | MEDIUM | `vitest.integration.config.ts` | Add e2e suite to pipeline |
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| JSON.parse without try-catch | LOW | `zalopay.service.ts` | Wrap in error handler (already done, verify) |
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| No explicit DELETE cascade rules | LOW | `schema.prisma` | Document orphaned data cleanup |
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---
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## FINAL SCORE: **8.5/10** ✅
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### Strengths:
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✅ Exemplary DDD architecture with full layer separation
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✅ Comprehensive test coverage (207 test files, 50% LOC ratio)
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✅ Strong environment validation & secrets management
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✅ Multi-layered security (CSRF, rate-limiting, input sanitization, CSP)
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✅ All MVP modules implemented + 6 extras
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✅ TypeScript strict mode enforced
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✅ Sentry + Prometheus observability
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✅ Clean code (no `any`, no console logs)
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### Weaknesses:
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⚠️ CSP policy review needed (unsafe-inline)
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⚠️ Missing `.env.example` documentation
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⚠️ No e2e test suite visible
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⚠️ CI/CD pipeline not documented
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⚠️ No pre-commit hooks
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### Recommendations:
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1. **High Priority:** Migrate to nonce-based CSP; create `.env.example`
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2. **Medium Priority:** Add e2e tests to Vitest config; integrate into CI
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3. **Low Priority:** Add Husky pre-commit hooks; document cascade delete rules
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