diff --git a/api/auth/login.py b/api/auth/login.py
index 04d3b31..474b8b8 100644
--- a/api/auth/login.py
+++ b/api/auth/login.py
@@ -1,5 +1,5 @@
 from flask import Blueprint, request, jsonify
-from firebase_admin import auth
+from firebase_admin import auth, firestore
 import urllib.parse
 
 login_bp = Blueprint("login", __name__)
@@ -16,9 +16,24 @@ def login():
         # Verify if the user exists in Firebase
         user = auth.get_user_by_email(email)
 
+        # Initialize Firestore client
+        db = firestore.client()
+
+        # Check if the user document exists in Firestore
+        user_ref = db.collection('users').document(user.uid)
+        user_doc = user_ref.get()
+
+        if not user_doc.exists:
+            # If user doesn't exist in Firestore, create a new user document
+            user_ref.set({
+                'email': email,
+                'uid': user.uid,
+                'messages': []  # Initialize an empty messages array
+            })
+
         # Generate a one-time login URL
         action_code_settings = {
-            "url": "http://localhost:8000/",
+            "url": "http://localhost:8000/",  # URL to redirect to after successful login
             "handleCodeInApp": False,
         }
         login_url = auth.generate_email_action_link("SIGN_IN", email, action_code_settings)