[QUESTION] Token undefined?

First check

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Description

When I try to run read_user_me on "/me" endpoint, an undefined (empty?) Token enters the function get_current_user (I saw it in debuger 'token='undefined') and after this I get "Authorization: Bearer undefined"

I definitely can’t understand if this is a bug, or an error in my code. Maybe I should use cookies…

python 3.8 last versions of libs

....
oauth2_scheme = OAuth2PasswordBearer(
    tokenUrl="/token",
    scopes={"me": "Read information about the current user."},
)


async def get_current_user(
    security_scopes: SecurityScopes,
    token: str = Depends(oauth2_scheme)
):
    pb_key = usecases.users.GetPublicKey().execute()
    if security_scopes.scopes:
        authenticate_value = f'Bearer scope="{security_scopes.scope_str}"'
    else:
        authenticate_value = f"Bearer"
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Doesn't work :'(",
        headers={"WWW-Authenticate": authenticate_value},
    )
    try:
        payload = jwt.decode(token, pb_key, algorithms=['RS256'])
        username: str = payload.get("sub")
        if username is None:
            raise credentials_exception
        token_scopes = payload.get("scopes", [])
        token_data = entities.TokenData(scopes=token_scopes, username=username)
    except (PyJWTError, ValidationError):
        raise credentials_exception
    user = usecases.users.ReadByUsername().execute(user_name=username)
    for scope in security_scopes.scopes:
        if scope not in token_data.scopes:
            raise HTTPException(
                status_code=status.HTTP_401_UNAUTHORIZED,
                detail="Not enough permissions",
                headers={"WWW-Authenticate": authenticate_value},
            )
    return user


app = FastAPI(default_response_class=JSONAPIResponse)


@app.post(
    "/token",
    response_model=entities.Token,
    tags=["auth"]
)
async def login_for_access_token(
    from_data: OAuth2PasswordRequestForm = Depends()
):
    token = users_usecases.AuthUser().execute(
        user_name=from_data.username,
        password=from_data.password
    )
    return token.value.dict()


@app.get(
    "/me",
    response_model=users_presenter.UserJSONObject
)
async def read_user_me(
    current_user: users_presenter.UserJSONObject = Security(
        get_current_user,
        scopes=["me"]
    )
):
    return JSONAPIConverter().serialize(current_user)
....

Additional context

I have JSON-API entities and classes of user cases for manipulating data from the database

[coryvirok]

If it helps, I just ran into this and it was because the Swagger-UI was not adding the token to the Authorization header. It was doing this because I had the Token() model from the example in the docs but I was also using an alias generator that was camelCasing the response.

class Token(BaseModel):
    access_token: str
    token_type: str

    class Config:
        alias_generator = camel.case

https://stackoverflow.com/questions/59808854/swagger-authorization-bearer-not-send#:~:text=In the cURL request you,header%2C it cannot be found.

[einsone]

{
    "access_token": "token",
    "token_type": "bearer"
}

above works well.

the following results in : -H 'Authorization: Bearer undefined'

{
    "errcode": 10000,
    "errmsg": "",
    "data": {
        "access_token": "token",
        "token_type": "bearer"
    }
}