Extract Device ID function : (error) "TypeError: Cannot read properties of undefined (reading '0')"

[chaoske1]

Hi,

I keep getting this error when pressing the stop button:

I have my deviceid, so could I hardcode it in the subflow?

when checking the "build URL device id", it works and gives back my device id, so I'm a little puzzled here :/

---

Steps:

• start charging -> error

• stop charging -> error

• poll -> error

• login

• start charging -> works

• stop charging -> works

• poll -> works

I've tried to mitigate this with adding the login to the start and stop button, but that doesn't work all of the time:

[wilbiev]

The above solution will not work. You are assigning two values to one variable. Only one value will pass-through. To solve this problem I added an additional check in the subflow. It checks if the output of 'Get Device ID' = '[]'. If so, it reroute the flow to the 'Authenticate'-node. If not, it continues to the 'Extract Device ID'-node.

[chaoske1]

hi Wilbiev,

Thanks for your feedback, I've reversed my change.

Could you give me some more details wrt the subflow check? Thx!

[account-name-git]

I encounter typically something similar in the middle of the night.
(dynamic tarif - cheapest and potentially busiest moment?)
A bit later when I retry and look at it, it just works... already bugging me for a few months

My docker logs:

20 Dec 02:01:33 - [error] [http request:POST Login] MaxRedirectsError: Redirected 21 times. Aborting.
20 Dec 02:01:46 - [error] [function:Extract Device ID] TypeError: Cannot read properties of undefined (reading '0')
20 Dec 02:02:16 - [error] [link call:Get props] timeout
20 Dec 04:01:33 - [error] [http request:POST Login] MaxRedirectsError: Redirected 21 times. Aborting.
20 Dec 04:01:46 - [error] [function:Extract Device ID] TypeError: Cannot read properties of undefined (reading '0')
20 Dec 04:02:16 - [error] [link call:Get props] timeout

4 Jan 03:11:37 - [error] [http request:POST Login] MaxRedirectsError: Redirected 21 times. Aborting.
4 Jan 03:11:50 - [error] [function:Extract Device ID] TypeError: Cannot read properties of undefined (reading '0')
4 Jan 03:12:20 - [error] [link call:Get props] timeout

10 Jan 00:01:38 - [error] [http request:POST Login] MaxRedirectsError: Redirected 21 times. Aborting.
10 Jan 00:01:51 - [error] [function:Extract Device ID] TypeError: Cannot read properties of undefined (reading '0')
10 Jan 00:02:21 - [error] [link call:Get props] timeout
10 Jan 05:01:32 - [error] [function:Extract Device ID] TypeError: Cannot read properties of undefined (reading '0')
10 Jan 05:02:00 - [info] [debug:debug 1] [[{"CHANNEL":"1","CONNECTOR":"IEC-62196-T2","MOM_POWER_KW":null,"SOC":null,"TRANS_ENERGY_DELIVERED_KWH":null,"TRANSACTION_TIME_H_M":null,"EVENT_DATA":"","CARDID":"","CARD_TYPE_ICON":"","CARDS_IDX":null,"CUSTOMERS_IDX":null,"CUSTOMER_NAME":"","IS_SELF":false,"IS_GLOBAL_CARD":null,"STATUS":"0","NOTIFICATION":"Transactie voorbereiden","ICON":"fa fa-car"}]]

[nikagl]

Note that I have stopped development for this myself as I have moved to https://github.com/Platzii/homeassistant-evcnet which does not require these flows and node-red anymore... So I cannot test anything and I would recommend forking this repo to someone that can still continue development that includes testing the changes...

If you want me to close the issue, let me know.

Regards,

Nika.

[wilbiev]

For everyone still interested there is a completely revised Node Red flow (v2.0) on https://github.com/wilbiev/50five.

[Gunterius]

For everyone still interested there is a completely revised Node Red flow (v2.0) on https://github.com/wilbiev/50five.

fully replaces the previous one and then works today ? I will give it a try coz my previous one stopped working recently.