fastapi-resource-server 0.1.1

Build resource servers with FastAPI

FastAPI Resource Server

Build an OIDC resource server using FastAPI.

Your aplication receives the claims decoded from the access token.

Usage

Run keycloak on port 8888:

docker container run --name auth-server -d -p 8888:8080 \
    -e KEYCLOAK_USER=admin -e KEYCLOAK_PASSWORD=admin \
    jboss/keycloak:latest

Install dependencies

pip install fastapi fastapi_resource_server uvicorn

Create the main.py module

from fastapi import Depends, FastAPI, Security
from pydantic import BaseModel

from fastapi_resource_server import JwtDecodeOptions, OidcResourceServer

app = FastAPI()

decode_options = JwtDecodeOptions(verify_aud=False)

auth_scheme = OidcResourceServer(
    "http://localhost:8888/auth/realms/master",
    scheme_name="Keycloak",
    jwt_decode_options=decode_options,
)


class User(BaseModel):
    username: str
    given_name: str
    family_name: str
    email: str


def get_current_user(claims: dict = Security(auth_scheme)):
    claims.update(username=claims["preferred_username"])
    user = User.parse_obj(claims)
    return user


@app.get("/users/me")
def read_current_user(current_user: User = Depends(get_current_user)):
    return current_user

Run the application

uvicorn main:app