jwtguard 0.1.0

Simple, modern JWT authentication for Django REST Framework with roles support

jwtguard

Simple, modern JWT authentication for Django REST Framework — with roles, refresh token rotation, and zero magic.

Built on top of PyJWT, fully compliant with RFC 7519.

---

Why jwtguard?

Most JWT libraries for Django are either abandoned, over-engineered, or hide too much behind configuration. This library gives you a working JWT auth workflow in minutes, with code you can actually read and understand.

• Explicit over magic — no hidden middleware or monkey-patching
• Role-based permissions baked in, sourced from Django Groups
• Refresh token rotation with database-backed revocation
• RFC 7519 compliant — sub, jti, iat, exp claims out of the box
• RS256 and HS256 support
• Django 4.2+ and 5.x compatible

---

Installation

pip install jwtguard

For RS256 support (asymmetric keys):

pip install "jwtguard[crypto]"

---

Quick start

1. Add to INSTALLED_APPS

INSTALLED_APPS = [
    ...
    "jwtguard",
]

2. Run migrations

python manage.py migrate

3. Configure DRF

REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "jwtguard.authentication.JWTAuthentication",
    ],
}

4. Add URLs

from django.urls import include, path

urlpatterns = [
    path("api/auth/", include("jwtguard.urls")),
]

That's it. You now have a working JWT auth workflow.

---

Usage

Authenticate

curl -X POST http://localhost:8000/api/auth/token/ \
  -H "Content-Type: application/json" \
  -d '{"username": "john", "password": "secret"}'

{
  "access": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
}

Call a protected endpoint

curl http://localhost:8000/api/me/ \
  -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."

Refresh the access token

curl -X POST http://localhost:8000/api/auth/token/refresh/ \
  -H "Content-Type: application/json" \
  -d '{"refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."}'

{
  "access": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."
}

Logout (revoke refresh token)

curl -X POST http://localhost:8000/api/auth/token/logout/ \
  -H "Authorization: Bearer <access_token>" \
  -H "Content-Type: application/json" \
  -d '{"refresh": "<refresh_token>"}'

Logout from all devices

curl -X POST http://localhost:8000/api/auth/token/logout/all/ \
  -H "Authorization: Bearer <access_token>"

---

Endpoints

Method	Endpoint	Description
POST	/auth/token/	Obtain access + refresh tokens
POST	/auth/token/refresh/	Rotate refresh token, get new access token
POST	/auth/token/logout/	Revoke a specific refresh token
POST	/auth/token/logout/all/	Revoke all sessions for the current user

---

Role-based permissions

Roles are sourced from Django's built-in Group model and embedded in the access token at login time.

from jwtguard.permissions import HasRole, HasAllRoles

class ReportView(APIView):
    permission_classes = [HasRole.require("analyst", "admin")]

    def get(self, request):
        ...

class BillingView(APIView):
    # user must have BOTH roles
    permission_classes = [HasAllRoles.require("finance", "admin")]

    def post(self, request):
        ...

You can also read roles directly from the token payload in your view:

def get(self, request):
    payload = request.auth  # dict with all JWT claims
    roles = payload.get("roles", [])

---

Configuration

All settings go under DRF_JWT in your settings.py. Every key is optional — the defaults are production-ready.

from datetime import timedelta

DRF_JWT = {
    # Token lifetimes
    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=15),
    "REFRESH_TOKEN_LIFETIME": timedelta(days=7),

    # Signing
    "ALGORITHM": "HS256",           # or "RS256"
    "SIGNING_KEY": SECRET_KEY,      # for RS256: your private key
    "VERIFYING_KEY": None,          # for RS256: your public key

    # Refresh token behavior
    "ROTATE_REFRESH_TOKENS": True,
    "BLACKLIST_AFTER_ROTATION": True,

    # Roles
    "ROLES_CLAIM": "roles",         # claim name in the token
    "ROLES_FROM": "groups",         # attribute on the User model

    # Header
    "AUTH_HEADER_PREFIX": "Bearer",

    # Multi-service / microservices (optional)
    "AUDIENCE": None,               # e.g. "my-api"
    "ISSUER": None,                 # e.g. "https://auth.example.com"

    # Custom claims (optional)
    "EXTRA_CLAIMS_CALLABLE": None,  # dotted path to a callable(user) -> dict
}

RS256 example

from pathlib import Path

DRF_JWT = {
    "ALGORITHM": "RS256",
    "SIGNING_KEY": Path("private.pem").read_text(),
    "VERIFYING_KEY": Path("public.pem").read_text(),
}

Custom claims

Add any extra claims to the access token without touching core claims (sub, jti, type, exp):

# myapp/tokens.py
def add_claims(user):
    return {"email": user.email, "tenant": user.org.slug}

# settings.py
DRF_JWT = {
    "EXTRA_CLAIMS_CALLABLE": "myapp.tokens.add_claims",
}

Audience and issuer (microservices)

When multiple services share a signing key, configure AUDIENCE and ISSUER to prevent a token issued for one service from being accepted by another:

DRF_JWT = {
    "AUDIENCE": "payments-service",
    "ISSUER": "https://auth.example.com",
}

Custom roles source

If your roles live somewhere other than Django Groups, point ROLES_FROM at any attribute or property on your User model:

# models.py
class User(AbstractUser):
    @property
    def role_names(self):
        return [self.role]  # your custom logic

# settings.py
DRF_JWT = {
    "ROLES_FROM": "role_names",
}

---

Token payload structure

{
  "sub": "42",
  "jti": "a3f8c2...",
  "roles": ["admin", "editor"],
  "type": "access",
  "iat": 1714300800,
  "exp": 1714301700
}

No PII is included by default. Use EXTRA_CLAIMS_CALLABLE to embed custom data.

---

Requirements

• Python 3.10+
• Django 4.2+
• djangorestframework 3.14+
• PyJWT 2.8+

---

Contributing

Contributions are welcome. Please open an issue before submitting a pull request for significant changes.

git clone https://github.com/fabianfalon/drf-jwt-auth.git
cd drf-jwt-auth
python -m venv .venv && source .venv/bin/activate
pip install -e ".[dev]"
pytest

---

License

MIT — see LICENSE for details.