Initial commit

backend/app/routers/auth.py

@@ -0,0 +1,42 @@
+from typing import Annotated
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordRequestForm
+from sqlmodel import select
+
+from app.deps import SessionDep
+from app.models import User
+from app.schemas import Token, UserCreate, UserRead
+from app.security import create_access_token, get_password_hash, verify_password
+
+router = APIRouter(prefix="/api/auth", tags=["auth"])
+
+
+@router.post("/register", response_model=UserRead, status_code=status.HTTP_201_CREATED)
+def register(user_in: UserCreate, session: SessionDep):
+    existing_user = session.exec(select(User).where(User.username == user_in.username)).first()
+    if existing_user:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Username already registered")
+
+    user = User(username=user_in.username, hashed_password=get_password_hash(user_in.password))
+    session.add(user)
+    session.commit()
+    session.refresh(user)
+    return user
+
+
+@router.post("/token", response_model=Token)
+def login(
+    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
+    session: SessionDep,
+):
+    user = session.exec(select(User).where(User.username == form_data.username)).first()
+    if not user or not verify_password(form_data.password, user.hashed_password):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    access_token = create_access_token(data={"sub": user.username})
+    return Token(access_token=access_token)