Initial commit

api/backends.py

@@ -0,0 +1,17 @@
+from django.contrib.auth import get_user_model
+from django.contrib.auth.backends import ModelBackend
+
+
+class EmailBackend(ModelBackend):
+    def authenticate(self, request, username=None, password=None, **kwargs):
+        UserModel = get_user_model()
+        if not password:
+            return None
+        try:
+            user = UserModel.objects.get(email=username)
+        except UserModel.DoesNotExist:
+            return None
+        else:
+            if user.check_password(password):
+                return user
+        return None