docs(cookbook): Add starting a flow after HA restart example

docs/.vuepress/config.js

@@ -40,6 +40,7 @@ module.exports = {
                         'expiration-date-monitor',
                         'using-date-and-time-entities-to-trigger-flows',
                         'check-if-an-entity-was-turned-on-in-the-last-24-hours',
+                        'starting-flow-after-home-assistant-restart',
                     ],
                 },
             ],

docs/cookbook/README.md

@@ -13,6 +13,7 @@ further educate yourself in the world of Home Automation with Node-RED.
 - [Expiration Date Monitor](./expiration-date-monitor.md)
 - [Using date and time entities to trigger flows](./using-date-and-time-entities-to-trigger-flows.md)
 - [Check if an entity was a certain state in the last 24 hours](./check-if-an-entity-was-turned-on-in-the-last-24-hours.md)
+- [Starting flow after Home Assistant reestart](./starting-flow-after-home-assistant-restart.md)
 
 All JSON exports are also available under the examples tab in the Node-RED
 import menu.

docs/cookbook/starting-flow-after-home-assistant-restart.md

@@ -0,0 +1,29 @@
+# Starting a flow after a Home Assistant restart
+
+Use a Home Assistant automation to set an input boolean to `on` then from Node-RED check if that input boolean is `on` after a successful connection or at any time it changes to `on`.
+
+## Create an input boolean using the Helpers menu (Configuration -> Helpers)
+
+![screenshot](./images/starting-flow-after-home-assistant-restart_02.png)
+
+## Create the Home Assistant automation
+
+```yaml
+alias: Home Assistant Restart
+description: ""
+trigger:
+  - platform: homeassistant
+    event: start
+condition: []
+action:
+  - service: input_boolean.turn_on
+    data: {}
+    entity_id: input_boolean.home_assistant_restarted
+mode: single
+```
+
+## Create the Node-RED flow
+
+![screenshot](./images/starting-flow-after-home-assistant-restart_01.png)
+
+<<< @/examples/cookbook/starting-flow-after-home-assistant-restart/example_01.json

examples/cookbook/starting-flow-after-home-assistant-restart/example_01.json

@@ -0,0 +1 @@
+[{"id":"18e24240.85551e","type":"server-events","z":"91a80f99.6180e","name":"","event_type":"home_assistant_client","exposeToHomeAssistant":false,"haConfig":[{"property":"name","value":""},{"property":"icon","value":""}],"waitForRunning":false,"x":152,"y":3968,"wires":[["45c2480a.030d78"]]},{"id":"45c2480a.030d78","type":"switch","z":"91a80f99.6180e","name":"running?","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"running","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":364,"y":3968,"wires":[["aaf97af.8e20e88"]]},{"id":"8632ed30.bd796","type":"api-call-service","z":"91a80f99.6180e","name":"","version":1,"debugenabled":false,"service_domain":"input_boolean","service":"turn_off","entityId":"input_boolean.home_assistant_restarted","data":"","dataType":"json","mergecontext":"","output_location":"","output_location_type":"none","mustacheAltTags":false,"x":760,"y":3968,"wires":[["9efea94e.8901e8"]]},{"id":"aaf97af.8e20e88","type":"api-current-state","z":"91a80f99.6180e","name":"has restarted?","version":1,"outputs":2,"halt_if":"on","halt_if_type":"str","halt_if_compare":"is","override_topic":false,"entity_id":"input_boolean.home_assistant_restarted","state_type":"str","state_location":"","override_payload":"none","entity_location":"","override_data":"none","blockInputOverrides":false,"x":528,"y":3968,"wires":[["8632ed30.bd796"],[]]},{"id":"f6b884f4.54b7b8","type":"server-state-changed","z":"91a80f99.6180e","name":"restarted?","version":1,"exposeToHomeAssistant":false,"haConfig":[{"property":"name","value":""},{"property":"icon","value":""}],"entityidfilter":"input_boolean.home_assistant_restarted","entityidfiltertype":"exact","outputinitially":false,"state_type":"str","haltifstate":"on","halt_if_type":"str","halt_if_compare":"is","outputs":2,"output_only_on_state_change":false,"for":0,"forType":"num","forUnits":"minutes","ignorePrevStateNull":false,"ignorePrevStateUnknown":false,"ignorePrevStateUnavailable":false,"ignoreCurrentStateUnknown":false,"ignoreCurrentStateUnavailable":false,"x":540,"y":4016,"wires":[["8632ed30.bd796"],[]]},{"id":"aea736a5.b21058","type":"comment","z":"91a80f99.6180e","name":"Home Assistant Restarted","info":"","x":142,"y":3920,"wires":[]},{"id":"9efea94e.8901e8","type":"link out","z":"91a80f99.6180e","name":"Home Assistant Restarted","links":["8e22de6e.96a9d"],"x":1022,"y":3968,"wires":[],"l":true},{"id":"8e22de6e.96a9d","type":"link in","z":"91a80f99.6180e","name":"Home Assistant Restarted","links":["9efea94e.8901e8"],"x":142,"y":4064,"wires":[["7029511d.e34d7"]],"l":true},{"id":"7029511d.e34d7","type":"debug","z":"91a80f99.6180e","name":"do stuff","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":348,"y":4064,"wires":[]}]