🏗️ Added first DTO

app/dto/UserRegisterDTO.py

@@ -0,0 +1,5 @@
+from pydantic import BaseModel
+
+class UserRegisterDTO(BaseModel):
+    username: str
+    password: str

app/dto/__init__.py

@@ -0,0 +1 @@
+from .UserRegisterDTO import UserRegisterDTO

app/main.py

@@ -14,6 +14,9 @@ from app.serializers import * # Import all serializers (detailed in __init__.py)
 # Import all models (detailed in __init__.py) 
 from app.models import *
 
+# Import all DTOs (detailed in __init__.py) 
+from app.dto import *
+
 # Contains all constants
 from app.config import *
 
@@ -27,6 +30,12 @@ app = FastAPI()
 # OAuth2 scheme
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl=TOKEN_URL)
 
+# Collections
+users_collection = db["users"]
+pins_collection = db["pins"]
+friends_collection = db["friends"]
+
+# Token management
 def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
     to_encode = data.copy()
 
@@ -62,14 +71,10 @@ async def get_current_user(token: str = Depends(oauth2_scheme)):
     
     return user
 
-# Collections
-users_collection = db["users"]
-pins_collection = db["pins"]
-friends_collection = db["friends"]
 
 # Routes - TODO: find workaround to display 401/409/... HTTP error codes in openapi.json 
 @app.post("/register", response_model=Token)
-async def register(user: User):
+async def register(user: UserRegisterDTO):
     user_exists = users_collection.find_one({"username": user.username})
     if user_exists:
         raise HTTPException(