From 8bad631fb6636e57acaaa223cb882df4a8d9772c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?dni=20=E2=9A=A1?= <office@dnilabs.com>
Date: Sun, 1 Oct 2023 09:55:21 +0200
Subject: [PATCH] bug: update lnurlp without username (#24)

* bug: update lnurlp without username

thrown an exception

```
    if len(kwargs["username"]) > 0:
TypeError: object of type 'NoneType' has no len()
2023-09-29 08:54:04.79 | ERROR | lnbits.app:exception_handler:460 | Exception: object of type 'NoneType' has no len()
```

* nicer if
---
 crud.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crud.py b/crud.py
index 4bbde29..de76cce 100644
--- a/crud.py
+++ b/crud.py
@@ -105,7 +105,7 @@ async def get_pay_links(wallet_ids: Union[str, List[str]]) -> List[PayLink]:
 
 
 async def update_pay_link(link_id: str, **kwargs) -> Optional[PayLink]:
-    if len(kwargs["username"]) > 0:
+    if "username" in kwargs and len(kwargs["username"]) > 0:
         await check_lnaddress_format(kwargs["username"])
         await check_lnaddress_not_exists(kwargs["username"])