FastAPI native extension, easy and simple JWT auth

Overview

fastapi-jwt

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FastAPI native extension, easy and simple JWT auth


Documentation: https://k4black.github.io/fastapi-jwt/
Source Code: https://github.com/k4black/fastapi-jwt/

Installation

pip install fastapi-jwt

Usage

This library made in fastapi style, so it can be used as standard security features

from fastapi import FastAPI, Security
from fastapi_jwt import JwtAuthorizationCredentials, JwtAccessBearer


app = FastAPI()
access_security = JwtAccessBearer(secret_key="secret_key", auto_error=True)


@app.post("/auth")
def auth():
    subject = {"username": "username", "role": "user"}
    return {"access_token": access_security.create_access_token(subject=subject)}


@app.get("/users/me")
def read_current_user(
    credentials: JwtAuthorizationCredentials = Security(access_security),
):
    return {"username": credentials["username"], "role": credentials["role"]}

For more examples see usage docs

Alternatives

  • FastAPI docs suggest writing it manually, but

    • code duplication
    • opportunity for bugs
  • There is nice fastapi-jwt-auth, but

    • poorly supported
    • not "FastAPI-style" (not native functions parameters)

FastAPI Integration

There it is open and maintained Pull Request #3305 to the fastapi repo. Currently, not considered.

Requirements

  • fastapi
  • python-jose[cryptography]
Comments
  • How to refresh tokens?

    How to refresh tokens?

    I'm currently trying to implement the refresh token functionality, but I always get the error:

    Credentials are not provided
    

    The request is made using axios with withCredentials: true enabled in the options.

    Here's the code for the server:

    @router.post(
        "/refresh",
    )
    async def refresh_token(
        response: Response,
        credentials: JwtAuthorizationCredentials = Security(refresh_security),
        db: Session = Depends(get_db),
    ):
        logger.info("Request: Refresh -> New Request to refresh JWT token.")
    
        user = get_user_by_id(db, credentials["id"])
    
        logger.info("Request: Refresh -> Returning new credentials.")
    
        set_authentication_cookies(response, user)
    
        return {
            "user": user,
            "detail": "Token refreshed successfully!"
        }
    
    opened by Myzel394 6
  • Add compatibility for Python 3.10

    Add compatibility for Python 3.10

    Changes:

    1. Remove the version upper-limit for Python, fastapi, and python-jose
    2. Add Python 3.10 to the Test workflow
      • testing against 3.10 is passing

    Cheers! Kyle

    opened by smithk86 1
  • Proposal to add a custom message for expired signature and incorrect token

    Proposal to add a custom message for expired signature and incorrect token

    Hi @k4black ,

    FYI:this is just a proposal and not complete PR. If you agree, i will enrich the PR

    Proposal: I would like to propose to add custom message as a param when creating a bearer token and refresh token. i have a use case where i need to pass different languages as message.

    opened by rakesh1988 1
  • No access token type checking?

    No access token type checking?

    "credentials: JwtAuthorizationCredentials = Security(refresh_security)" allows only the refresh token. "credentials: JwtAuthorizationCredentials = Security(access_security)" allows both the access token and the refresh token. did you intend this?

    class JwtAccess(JwtAuthBase):

    def __init__(
        self,
        secret_key: str,
        places: Optional[Set[str]] = None,
        auto_error: bool = True,
        algorithm: str = jwt.ALGORITHMS.HS256,
        access_expires_delta: Optional[timedelta] = None,
        refresh_expires_delta: Optional[timedelta] = None,
    ):
        super().__init__(
            secret_key,
            places=places,
            auto_error=auto_error,
            algorithm=algorithm,
            access_expires_delta=access_expires_delta,
            refresh_expires_delta=refresh_expires_delta,
        )
    
    async def _get_credentials(
        self,
        bearer: Optional[JwtAuthBase.JwtAccessBearer],
        cookie: Optional[JwtAuthBase.JwtAccessCookie],
    ) -> Optional[JwtAuthorizationCredentials]:
        payload = await self._get_payload(bearer, cookie)
    
        if payload:
            return JwtAuthorizationCredentials(
                payload["subject"], payload.get("jti", None)
            )
        return None
    

    class JwtRefresh(JwtAuthBase):

    def __init__(
        self,
        secret_key: str,
        places: Optional[Set[str]] = None,
        auto_error: bool = True,
        algorithm: str = jwt.ALGORITHMS.HS256,
        access_expires_delta: Optional[timedelta] = None,
        refresh_expires_delta: Optional[timedelta] = None,
    ):
        super().__init__(
            secret_key,
            places=places,
            auto_error=auto_error,
            algorithm=algorithm,
            access_expires_delta=access_expires_delta,
            refresh_expires_delta=refresh_expires_delta,
        )
    
    async def _get_credentials(
        self,
        bearer: Optional[JwtAuthBase.JwtRefreshBearer],
        cookie: Optional[JwtAuthBase.JwtRefreshCookie],
    ) -> Optional[JwtAuthorizationCredentials]:
        payload = await self._get_payload(bearer, cookie)
    
        if payload is None:
            return None
    
        if "type" not in payload or payload["type"] != "refresh":
            if self.auto_error:
                raise HTTPException(
                    status_code=HTTP_401_UNAUTHORIZED,
                    detail="Wrong token: 'type' is not 'refresh'",
                )
            else:
                return None
    
        return JwtAuthorizationCredentials(
            payload["subject"], payload.get("jti", None)
        )
    
    opened by ohgoodjay 0
  • Bump supported python version?

    Bump supported python version?

    Im unable to install this project in my python 3.10 project, as you have pinned >=3.7,<3.10 in setup.cfg

    I think this code will probably run with 3.10

    opened by farridav 2
  • Is this project actively maintained?

    Is this project actively maintained?

    I am looking for a fast api jwt extension that is still maintained. Looks like this repo was created to replace poorly maintained fastapi-jwt-auth but you have PRs opened for 3 months...

    opened by jmilosze 1
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