From 8cff11bf721be3139be00d1cc1323609c9d21995 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@alhur.es>
Date: Thu, 6 May 2021 23:22:02 -0300
Subject: [PATCH] global quart errorhandler.

---
 lnbits/app.py   | 24 +++++++++++++++++++++---
 lnbits/tasks.py |  7 -------
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/lnbits/app.py b/lnbits/app.py
index c5654f8e3..6137fdaf3 100644
--- a/lnbits/app.py
+++ b/lnbits/app.py
@@ -1,6 +1,7 @@
 import sys
-import importlib
 import warnings
+import importlib
+import traceback
 
 from quart import g
 from quart_trio import QuartTrio
@@ -23,7 +24,6 @@ from .tasks import (
     invoice_listener,
     internal_invoice_listener,
     webhook_handler,
-    grab_app_for_later,
 )
 from .settings import WALLET
 
@@ -48,7 +48,7 @@ def create_app(config_object="lnbits.settings") -> QuartTrio:
     register_commands(app)
     register_request_hooks(app)
     register_async_tasks(app)
-    grab_app_for_later(app)
+    register_exception_handlers(app)
 
     return app
 
@@ -135,3 +135,21 @@ def register_async_tasks(app):
     @app.after_serving
     async def stop_listeners():
         pass
+
+
+def register_exception_handlers(app):
+    @app.errorhandler(Exception)
+    async def basic_error(err):
+        etype, value, tb = sys.exc_info()
+        traceback.print_exception(etype, err, tb)
+        exc = traceback.format_exc()
+        return (
+            "\n\n".join(
+                [
+                    "LNbits internal error!",
+                    exc,
+                    "If you believe this shouldn't be an error please bring it up on https://t.me/lnbits",
+                ]
+            ),
+            500,
+        )
diff --git a/lnbits/tasks.py b/lnbits/tasks.py
index 0e2ff98da..756b11425 100644
--- a/lnbits/tasks.py
+++ b/lnbits/tasks.py
@@ -13,13 +13,6 @@ from lnbits.core.crud import (
 )
 from lnbits.core.services import redeem_lnurl_withdraw
 
-main_app: Optional[QuartTrio] = None
-
-
-def grab_app_for_later(app: QuartTrio):
-    global main_app
-    main_app = app
-
 
 deferred_async: List[Callable] = []