add user auth boilerplate

crawler/api/app.py

@@ -1,14 +1,31 @@
-from fastapi import FastAPI
+from typing import Annotated
+from fastapi import Depends, FastAPI, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from models.user import User
 from repositories.listing_repository import ListingRepository
 from repositories.listing_repository import ListingRepository
 from database import engine
+from repositories.user_repository import UserRepository
 
 
 app = FastAPI()
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+
+async def decode_token(token: Annotated[str, Depends(oauth2_scheme)]):
+    repository = UserRepository(engine)
+    user = await repository.get_user_from_token(token)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Invalid authentication credentials",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    return user
 
 
 @app.get("/listing")
-async def get_listing():
+async def get_listing(user: Annotated[User | None, Depends(decode_token)]):
     repository = ListingRepository(engine)
     listings = await repository.get_listings()
     return {"listings": listings}