add cron jobs for ATProto polling posts and notifications

fixes #942

cron.yaml

@@ -0,0 +1,13 @@
+# timezone defaults to UTC
+# docs: https://cloud.google.com/appengine/docs/standard/python3/scheduling-jobs-with-cron-yaml
+
+cron:
+- description: ATProto poll posts
+  url: /queue/atproto-poll-posts
+  schedule: every 15 minutes
+  target: hub
+
+- description: ATProto poll notifications
+  url: /queue/atproto-poll-notifs
+  schedule: every 15 minutes
+  target: hub

hub.py

@@ -60,11 +60,11 @@ lexrpc.flask_server.init_flask(arroba.server.server, app)
 
 app.add_url_rule('/queue/atproto-poll-notifs',
                  view_func=atproto.poll_notifications,
-                 methods=['POST'])
+                 methods=['GET', 'POST'])
 
 app.add_url_rule('/queue/atproto-poll-posts',
                  view_func=atproto.poll_posts,
-                 methods=['POST'])
+                 methods=['GET', 'POST'])
 
 @app.post('/queue/atproto-commit')
 @flask_util.cloud_tasks_only