got httpclient working, spoke heartbeat is working

capsulflask/__init__.py

@@ -1,8 +1,10 @@
 import logging 
 from logging.config import dictConfig as logging_dict_config
 
+import atexit
 import os
 import hashlib
+import requests
 
 import stripe
 from dotenv import load_dotenv, find_dotenv
@@ -11,11 +13,13 @@ from flask_mail import Mail
 from flask import render_template
 from flask import url_for
 from flask import current_app
+from apscheduler.schedulers.background import BackgroundScheduler
 
 from capsulflask import hub_model, spoke_model, cli
 from capsulflask.btcpay import client as btcpay
 from capsulflask.http_client import MyHTTPClient
 
+
 load_dotenv(find_dotenv())
 
 app = Flask(__name__)
@@ -32,7 +36,6 @@ app.config.from_mapping(
   SPOKE_HOST_ID=os.environ.get("SPOKE_HOST_ID", default="default"),
   SPOKE_HOST_TOKEN=os.environ.get("SPOKE_HOST_TOKEN", default="default"),
   HUB_TOKEN=os.environ.get("HUB_TOKEN", default="default"),
-  HUB_URL=os.environ.get("HUB_URL", default="https://capsul.org"),
 
   DATABASE_URL=os.environ.get("DATABASE_URL", default="sql://postgres:dev@localhost:5432/postgres"),
   DATABASE_SCHEMA=os.environ.get("DATABASE_SCHEMA", default="public"),
@@ -56,6 +59,8 @@ app.config.from_mapping(
   BTCPAY_URL=os.environ.get("BTCPAY_URL", default="https://btcpay.cyberia.club")
 )
 
+app.config['HUB_URL'] = os.environ.get("HUB_URL", default=app.config['BASE_URL'])
+
 logging_dict_config({
   'version': 1,
   'formatters': {'default': {
@@ -89,6 +94,19 @@ if app.config['HUB_MODE_ENABLED']:
 
   if app.config['HUB_MODEL'] == "capsul-flask":
     app.config['HUB_MODEL'] = hub_model.CapsulFlaskHub()
+
+    # debug mode (flask reloader) runs two copies of the app. When running in debug mode,
+    # we only want to start the scheduler one time.
+    if not app.debug or os.environ.get('WERKZEUG_RUN_MAIN') == 'true':
+      scheduler = BackgroundScheduler()
+      heartbeat_task_url = f"{app.config['HUB_URL']}/hub/heartbeat-task"
+      heartbeat_task_headers = {'Authorization': f"Bearer {app.config['HUB_TOKEN']}"}
+      heartbeat_task = lambda: requests.post(heartbeat_task_url, headers=heartbeat_task_headers)
+      scheduler.add_job(func=heartbeat_task, trigger="interval", seconds=5)
+      scheduler.start()
+
+      atexit.register(lambda: scheduler.shutdown())
+
   else:
     app.config['HUB_MODEL'] = hub_model.MockHub()
     
@@ -107,6 +125,8 @@ if app.config['HUB_MODE_ENABLED']:
 
   app.add_url_rule("/", endpoint="index")
 
+
+
 if app.config['SPOKE_MODE_ENABLED']:
 
   if app.config['SPOKE_MODEL'] == "shell-scripts":