FastApi middleware on different folder not working

Question

I,m getting this error when I try to run my FastApi api.

app = cls(app=app, **options) TypeError: 'module' object is not callable

I'm trying to add a middleware on other folder separeted from main.py and don't know why isn't working. Otherwise when I add the middleware code into main.py works without problems. Here is my code, thank you for your help and excuse my english.

main.py

from fastapi import FastAPI
from fastapi import Depends, FastAPI, HTTPException
from fastapi import Request
from routers import rutas
from utils import CheckApiKey
from utils.CheckApiKey import check_api_key

app = FastAPI()
app.add_middleware(CheckApiKey, dispatch=check_api_key) <--- Here calling middleware
app.include_router(rutas.router)


if __name__ == "__main__":
  import uvicorn

  uvicorn.run("main:app", host="127.0.0.1", port=8000, reload=True)

Middleware

from fastapi import Request

async def check_api_key(request: Request, call_next):    

  print("ok")
  response = await call_next(request) 

  return response

Answer 1

I found the solution...I have to create a class that inherite from starlette basehttpmiddleare, like this.

from starlette.middleware.base import BaseHTTPMiddleware


class CheckApiKey(BaseHTTPMiddleware):
 async def dispatch(self, request, call_next):
    print("ok")
    response = await call_next(request)

    return response