migrate to trio so c-lightning sockets stop hanging.

lnbits/app.py

@@ -1,7 +1,8 @@
-import asyncio
+import trio # type: ignore
 import importlib
 
-from quart import Quart, g
+from quart import g
+from quart_trio import QuartTrio
 from quart_cors import cors  # type: ignore
 from quart_compress import Compress  # type: ignore
 from secure import SecureHeaders  # type: ignore
@@ -15,11 +16,11 @@ from .proxy_fix import ASGIProxyFix
 secure_headers = SecureHeaders(hsts=False)
 
 
-def create_app(config_object="lnbits.settings") -> Quart:
+def create_app(config_object="lnbits.settings") -> QuartTrio:
     """Create application factory.
     :param config_object: The configuration object to use.
     """
-    app = Quart(__name__, static_folder="static")
+    app = QuartTrio(__name__, static_folder="static")
     app.config.from_object(config_object)
     app.asgi_http_class = ASGIProxyFix
 
@@ -36,7 +37,7 @@ def create_app(config_object="lnbits.settings") -> Quart:
     return app
 
 
-def register_blueprints(app: Quart) -> None:
+def register_blueprints(app: QuartTrio) -> None:
     """Register Flask blueprints / LNbits extensions."""
     app.register_blueprint(core_app)
 
@@ -58,13 +59,13 @@ def register_blueprints(app: Quart) -> None:
             raise ImportError(f"Please make sure that the extension `{ext.code}` follows conventions.")
 
 
-def register_commands(app: Quart):
+def register_commands(app: QuartTrio):
     """Register Click commands."""
     app.cli.add_command(db_migrate)
     app.cli.add_command(handle_assets)
 
 
-def register_assets(app: Quart):
+def register_assets(app: QuartTrio):
     """Serve each vendored asset separately or a bundle."""
 
     @app.before_request
@@ -77,13 +78,13 @@ def register_assets(app: Quart):
             g.VENDORED_CSS = ["/static/bundle.css"]
 
 
-def register_filters(app: Quart):
+def register_filters(app: QuartTrio):
     """Jinja filters."""
     app.jinja_env.globals["SITE_TITLE"] = app.config["LNBITS_SITE_TITLE"]
     app.jinja_env.globals["EXTENSIONS"] = get_valid_extensions()
 
 
-def register_request_hooks(app: Quart):
+def register_request_hooks(app: QuartTrio):
     """Open the core db for each request so everything happens in a big transaction"""
 
     @app.before_request
@@ -109,8 +110,8 @@ def register_async_tasks(app):
 
     @app.before_serving
     async def listeners():
-        loop = asyncio.get_running_loop()
-        loop.create_task(invoice_listener())
+        app.nursery.start_soon(invoice_listener)
+        print("started invoice_listener")
 
     @app.after_serving
     async def stop_listeners():