JWT SImple implimentation

backend/auth/jwt.py

@@ -1,40 +1,63 @@
-# backend/auth/jwt.py
+# auth/jwt.py
 
-import requests
-from jose import jwt
-from jose.exceptions import JWTError
-from fastapi import Depends, HTTPException, status
-from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
-from typing import Dict
+from fastapi import Request, HTTPException, status, Depends
+from jose import jwt, JWTError
+import os
 
-SUPABASE_PROJECT_ID = "lcoretjgpauozmuoedus"  # <-- Replace with your project ref
-SUPABASE_JWKS_URL = f"https://{SUPABASE_PROJECT_ID}.supabase.co/auth/v1/keys"
+JWT_SECRET = os.getenv("SUPABASE_JWT_SECRET")
+ALGORITHM = "HS256"
 
-# Fetch JWKs from Supabase
-jwks = requests.get(SUPABASE_JWKS_URL).json()
 
-# Define FastAPI's bearer auth scheme
-auth_scheme = HTTPBearer()
+def get_token_from_header(request: Request) -> str:
+    auth_header = request.headers.get("Authorization")
+    if not auth_header or not auth_header.startswith("Bearer "):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Missing or invalid Authorization header",
+        )
+    return auth_header.split(" ")[1]
 
-# Decode + verify JWT token
-def verify_jwt_token(token: str) -> Dict:
+
+# def verify_jwt_token(token: str) -> dict:
+#     try:
+#         payload = jwt.decode(token, JWT_SECRET, algorithms=[ALGORITHM])
+#         return payload
+#     except JWTError as e:
+#         raise HTTPException(
+#             status_code=status.HTTP_403_FORBIDDEN,
+#             detail=f"Invalid JWT token: {str(e)}",
+#         )
+def verify_jwt_token(token: str) -> dict:
     try:
-        header = jwt.get_unverified_header(token)
-        kid = header["kid"]
+        payload = jwt.decode(
+            token,
+            JWT_SECRET,
+            algorithms=[ALGORITHM],
+            options={"verify_aud": False}  # <- Disable audience verification
+        )
 
-        key = next((k for k in jwks["keys"] if k["kid"] == kid), None)
-        if key is None:
-            raise HTTPException(status_code=403, detail="Invalid Supabase JWT: No matching key")
-
-        payload = jwt.decode(token, key, algorithms=["RS256"], options={"verify_aud": False})
         return payload
-
     except JWTError as e:
-        raise HTTPException(status_code=403, detail=f"Invalid Supabase JWT: {str(e)}")
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail=f"Invalid JWT token: {str(e)}",
+        )
 
-# Dependency for protected endpoints
-def get_current_user(
-    credentials: HTTPAuthorizationCredentials = Depends(auth_scheme)
-) -> Dict:
-    token = credentials.credentials
-    return verify_jwt_token(token)
+
+def get_current_user(request: Request):
+    token = get_token_from_header(request)
+    payload = verify_jwt_token(token)
+
+    user_id = payload.get("sub")
+    if not user_id:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="JWT missing 'sub' field",
+        )
+    print("🔐  JWT payload seen by API →", payload)
+    return {
+        "id": user_id,
+        "email": payload.get("email"),
+        "role": payload.get("role"),
+        "tenant_id": payload.get("tenant_id", "unknown"),
+    }

backend/main.py

@@ -24,10 +24,13 @@ def supabase_check():
         return JSONResponse(status_code=500, content={"status": "error", "error": str(e)})
     
 @app.get("/me")
-def me(user: dict = Depends(get_current_user)):
+def me(current: dict = Depends(get_current_user)):
     return {
-        "id": user.get("sub"),
-        "email": user.get("email"),
-        "role": user.get("role"),
-        "tenant_id": user.get("tenant_id", "unknown")
+        "id":        current["id"],
+        "email":     current["email"],
+        "role":      current["role"],
+        "tenant_id": current["tenant_id"],
     }
+
+
+