python-dependency-injector/tests/unit/samples/wiringfastapi/web.py

import sys

from fastapi import FastAPI, Depends
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from dependency_injector import containers, providers
from dependency_injector.wiring import inject, Provide


class Service:
    async def process(self) -> str:
        return 'Ok'


class Container(containers.DeclarativeContainer):

    service = providers.Factory(Service)


app = FastAPI()
security = HTTPBasic()


@app.api_route('/')
@inject
async def index(service: Service = Depends(Provide[Container.service])):
    result = await service.process()
    return {'result': result}


@app.get('/auth')
@inject
def read_current_user(
        credentials: HTTPBasicCredentials = Depends(security)
):
    return {'username': credentials.username, 'password': credentials.password}


container = Container()
container.wire(modules=[sys.modules[__name__]])