orion/docs/api/authentication-quick-reference.md

Authentication Quick Reference

Version 1.0 | One-page reference for developers

---

Function Cheat Sheet

For HTML Pages (accept cookie OR header)

from app.api.deps import (
    get_current_admin_from_cookie_or_header,
    get_current_vendor_from_cookie_or_header,
    get_current_customer_from_cookie_or_header
)

# Admin page
@router.get("/admin/dashboard")
def admin_page(user: User = Depends(get_current_admin_from_cookie_or_header)):
    pass

# Vendor page
@router.get("/vendor/{code}/dashboard")
def vendor_page(user: User = Depends(get_current_vendor_from_cookie_or_header)):
    pass

# Customer page
@router.get("/shop/account/dashboard")
def customer_page(user: User = Depends(get_current_customer_from_cookie_or_header)):
    pass

For API Endpoints (header only - better security)

from app.api.deps import (
    get_current_admin_api,
    get_current_vendor_api,
    get_current_customer_api
)

# Admin API
@router.post("/api/v1/admin/vendors")
def admin_api(user: User = Depends(get_current_admin_api)):
    pass

# Vendor API
@router.post("/api/v1/vendor/{code}/products")
def vendor_api(user: User = Depends(get_current_vendor_api)):
    pass

# Customer API
@router.post("/api/v1/shop/orders")
def customer_api(user: User = Depends(get_current_customer_api)):
    pass

---

Three Authentication Contexts

Context	Cookie	Path	Role	Routes
Admin	admin_token	/admin	admin	/admin/*
Vendor	vendor_token	/vendor	vendor	/vendor/*
Customer	customer_token	/shop	customer	/shop/account/*

---

Access Control Matrix

User	Admin Portal	Vendor Portal	Shop Catalog	Customer Account
Admin	✅	❌	✅ (view)	❌
Vendor	❌	✅	✅ (view)	❌
Customer	❌	❌	✅ (view)	✅
Anonymous	❌	❌	✅ (view)	❌

---

Login Endpoints

# Admin
POST /api/v1/admin/auth/login
Body: {"username": "...", "password": "..."}

# Vendor
POST /api/v1/vendor/auth/login
Body: {"username": "...", "password": "..."}

# Customer
POST /api/v1/public/vendors/{vendor_id}/customers/login
Body: {"username": "...", "password": "..."}

Response:

{
    "access_token": "eyJ0eXAi...",
    "token_type": "Bearer",
    "expires_in": 3600,
    "user": {...}
}

Plus HTTP-only cookie is set automatically.

---

Frontend Patterns

Login (Store Token)

const response = await fetch('/api/v1/admin/auth/login', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ username, password })
});

const data = await response.json();

// Cookie set automatically
// Optionally store for API calls
localStorage.setItem('token', data.access_token);

// Navigate (cookie automatic)
window.location.href = '/admin/dashboard';

API Call (Use Token)

const token = localStorage.getItem('token');

const response = await fetch('/api/v1/admin/vendors', {
    headers: {
        'Authorization': `Bearer ${token}`
    }
});

Logout

await fetch('/api/v1/admin/auth/logout', { method: 'POST' });
localStorage.removeItem('token');
window.location.href = '/admin/login';

---

Testing Commands

curl Examples

# Login
TOKEN=$(curl -X POST http://localhost:8000/api/v1/admin/auth/login \
  -H "Content-Type: application/json" \
  -d '{"username":"admin","password":"admin123"}' \
  | jq -r '.access_token')

# Authenticated request
curl http://localhost:8000/api/v1/admin/vendors \
  -H "Authorization: Bearer $TOKEN"

Check Cookie in Browser

// In DevTools console
document.cookie.split(';').forEach(c => console.log(c.trim()));

Decode JWT

function parseJwt(token) {
    return JSON.parse(atob(token.split('.')[1]));
}

console.log(parseJwt(localStorage.getItem('token')));

---

Common Errors

Error	Meaning	Solution
INVALID_TOKEN	No token or invalid	Re-login
TOKEN_EXPIRED	Token expired	Re-login
ADMIN_REQUIRED	Need admin role	Use correct account
INSUFFICIENT_PERMISSIONS	Wrong role for route	Use correct portal
USER_NOT_ACTIVE	Account disabled	Contact admin

---

Security Rules

1. ✅ HTML pages use *_from_cookie_or_header functions
2. ✅ API endpoints use *_api functions
3. ✅ Admins cannot access vendor/customer portals
4. ✅ Vendors cannot access admin/customer portals
5. ✅ Customers cannot access admin/vendor portals
6. ✅ Public shop (/shop/products) needs no auth
7. ✅ Customer accounts (/shop/account/*) need auth

---

Cookie Security

All cookies have:

• ✅ HttpOnly=true - JavaScript cannot read (XSS protection)
• ✅ Secure=true - HTTPS only (production)
• ✅ SameSite=Lax - CSRF protection
• ✅ Path restriction - Context isolation

---

Quick Debug

1. Auth not working?

   • Check DevTools → Application → Cookies
   • Verify cookie name and path match route
   • Check token not expired

2. Cross-context access denied?

   • This is intentional security
   • Use correct portal for your role

3. API call fails but page loads?

   • API needs Authorization header
   • Page uses cookie (automatic)
   • Add header to API calls

---

File Locations

app/api/
├── deps.py                         # All auth functions here
├── v1/
    ├── admin/auth.py              # Admin login
    ├── vendor/auth.py             # Vendor login
    └── public/vendors/auth.py     # Customer login

---

Environment Variables

JWT_SECRET_KEY=your-secret-key
JWT_ALGORITHM=HS256
JWT_EXPIRATION=3600  # 1 hour
ENVIRONMENT=production

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Full Documentation: See Authentication System Documentation Questions? Contact backend team

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