Added tasks example

lnbits/extensions/example/__init__.py

@@ -1,8 +1,10 @@
+import asyncio
 from fastapi import APIRouter
 from fastapi.staticfiles import StaticFiles
 
 from lnbits.db import Database
 from lnbits.helpers import template_renderer
+from lnbits.tasks import catch_everything_and_restart
 
 db = Database("ext_example")
 
@@ -20,6 +22,10 @@ example_static_files = [
 def example_renderer():
     return template_renderer(["lnbits/extensions/example/templates"])
 
+from .tasks import wait_for_paid_invoices
+from .views import *
+from .views_api import *
 
-from .views import *  # noqa
+def tpos_start():
-from .views_api import *  # noqa
+    loop = asyncio.get_event_loop()
+    loop.create_task(catch_everything_and_restart(wait_for_paid_invoices))

lnbits/extensions/example/tasks.py

@@ -0,0 +1,23 @@
+# views_api.py is for you API endpoints that could be hit by another service
+
+# add your dependencies here
+
+import asyncio
+from loguru import logger
+from lnbits.core.models import Payment
+from lnbits.helpers import get_current_extension_name
+from lnbits.tasks import register_invoice_listener
+
+async def wait_for_paid_invoices():
+    invoice_queue = asyncio.Queue()
+    register_invoice_listener(invoice_queue, get_current_extension_name())
+
+    while True:
+        payment = await invoice_queue.get()
+        await on_invoice_paid(payment)
+
+async def on_invoice_paid(payment: Payment) -> None:
+    if payment.extra.get("tag") != "example":
+        logger.debug(payment)
+        # Do something
+    return