Allow webhooks that support GET

homeassistant/components/webhook.py

@@ -101,11 +101,19 @@ class WebhookView(HomeAssistantView):
     name = "api:webhook"
     requires_auth = False
 
-    async def post(self, request, webhook_id):
+    async def handle(self, request, webhook_id):
         """Handle webhook call."""
         hass = request.app['hass']
         return await async_handle_webhook(hass, webhook_id, request)
 
+    async def post(self, request, webhook_id):
+        """Handle webhook POST call."""
+        return await self.handle(request, webhook_id)
+
+    async def get(self, request, webhook_id):
+        """Handle webhook GET call."""
+        return await self.handle(request, webhook_id)
+
 
 @callback
 def websocket_list(hass, connection, msg):

tests/components/test_webhook.py

@@ -122,3 +122,28 @@ async def test_listing_webhook(hass, hass_ws_client, hass_access_token):
             'name': 'Test hook'
         }
     ]
+
+
+async def test_getting_webhook_nonexisting(hass, mock_client):
+    """Test getting a nonexisting webhook."""
+    resp = await mock_client.get('/api/webhook/non-existing')
+    assert resp.status == 200
+
+
+async def test_getting_webhook(hass, mock_client):
+    """Test getting a webhook with no data."""
+    hooks = []
+    webhook_id = hass.components.webhook.async_generate_id()
+
+    async def handle(*args):
+        """Handle webhook."""
+        hooks.append(args)
+
+    hass.components.webhook.async_register(
+        'test', "Test hook", webhook_id, handle)
+
+    resp = await mock_client.get('/api/webhook/{}'.format(webhook_id))
+    assert resp.status == 200
+    assert len(hooks) == 1
+    assert hooks[0][0] is hass
+    assert hooks[0][1] == webhook_id