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https://github.com/michael7nightingale/fastapi_authtools

JWT authentication fot FastAPI framework.
https://github.com/michael7nightingale/fastapi_authtools

fastapi jwt-authentication starlette

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JWT authentication fot FastAPI framework.

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README

          

# FastAPI auth library.

It`s simple to connect to your project. Just make user_data verification, and library will manage JWT-tokens.

## Installation
Install package with pip:
```commandline
pip install fastapi-authtools
```

...or with poetry:
```commandline
poetry add fastapi-authtools
```

## Usage
You can you it with JWT-token (default in you headers).

```python
from fastapi import FastAPI, Request, Body

from fastapi_authtools import AuthManager, login_required
from fastapi_authtools.models import UsernamePasswordToken, UserModel

app = FastAPI()

# JWT token settings
SECRET_KEY = 'secretSERCRET007'
EXPIRE_MINUTES = 60 * 40
ALGORITHM = "HS256"

# create login manager
auth_manager = AuthManager(
app=app,
secret_key=SECRET_KEY,
algorithm=ALGORITHM,
expire_minutes=EXPIRE_MINUTES
)

# now you can use login_manager directly or py adding it to the application statement
# it`s comfortable while dealing with APIRouters
app.state.auth_manager = auth_manager

@app.get("/")
@login_required # make this endpoint allowed only for authenticated users
async def homepage(request: Request):
current_user = request.user
return {"current_user": current_user}

@app.post("/auth/token", status_code=201)
async def get_access_token(request: Request, user_data: UsernamePasswordToken = Body()):
# ... here goes db user verification and getting user information
# user = get_login_user(user_data)
user = UserModel(
email="suslanchikmol@gmail.con",
username="michael7nightingale"
)
token = request.app.state.auth_manager.create_token(user)
return {"access_token": token}

```

But you can still use cookies to save token, just define `user_cookies` as True when initialize AuthManager.

To use templates and form data you should install `jinja2` and `python-multipart`.
```python
from fastapi import FastAPI, Request
from fastapi.responses import RedirectResponse
from fastapi.templating import Jinja2Templates

from fastapi_authtools import AuthManager, login_required
from fastapi_authtools.models import UserModel

app = FastAPI()
templates = Jinja2Templates(directory="templates")

# JWT token settings
SECRET_KEY = 'secretSERCRET007'
EXPIRE_MINUTES = 60 * 40
ALGORITHM = "HS256"

# create login manager
auth_manager = AuthManager(
app=app,
use_cookies=True,
secret_key=SECRET_KEY,
algorithm=ALGORITHM,
expire_minutes=EXPIRE_MINUTES
)

# now you can use login_manager directly or py adding it to the application statement
# it`s comfortable while dealing with APIRouters
app.state.auth_manager = auth_manager

@app.get("/")
@login_required # make this endpoint allowed only for authenticated users
async def homepage(request: Request):
return templates.TemplateResponse(
name="homepage.html",
context={"request": request, "current_user": request.user}
)

@app.get('/login')
async def login_get(request: Request):
return templates.TemplateResponse(
name='login.html',
context={"request": request}
)

@app.post("/login", status_code=201)
async def login_post(request: Request):
user_data = await request.form()
# ... here goes db user verification and getting user information
# user = get_login_user(user_data)
user = UserModel(
email="suslanchikmol@gmail.con",
username="michael7nightingale"
)
response = RedirectResponse(app.url_path_for("homepage"), status_code=303)
app.state.auth_manager.login(response, user)
return response
```

Auth manager adds authentication middleware to your application instance and uses authentication backends to treat token and
request user instance.