fix error message

main.py

@@ -58,7 +58,7 @@ def verify_token(req: Request):
     if "Authorization" not in req.headers:
         raise HTTPException(
             status_code=401,
-            detail="Unauthorized"
+            detail="Authorization header not present"
         )
     token = req.headers["Authorization"]
     if token.startswith("Bearer "):
@@ -68,14 +68,20 @@ def verify_token(req: Request):
     if TOKEN_SERVER:
         tokenAuthResult = requests.get(TOKEN_SERVER, headers={"Authorization": "Bearer "+token})
         if tokenAuthResult.status_code >= 400:
+            tokenError = tokenAuthResult.json()
+            errorMessage = 'Unknown error'
+            for key in ['error', 'message', 'detail']:
+                if key in tokenError:
+                    errorMessage = tokenError[key]
+                    break
             raise HTTPException(
                 status_code=tokenAuthResult.status_code,
-                detail="Unauthorized"
+                detail=tokenError['message']
             )
         return True
     raise HTTPException(
         status_code=401,
-        detail="Unauthorized"
+        detail="Invalid token"
     )
 #Initialize fastapi
 app = FastAPI()