Helper Error - required key not provided @ data['value']. Got None

Configuration
1

I would like to record the current brightness of a light to a helper, and then reduce that number by some amount, and then set the lights to that level.

I am trying to run an action " Input number ‘Set’"

The YAML I have is

action: input_number.set_value
metadata: {}
data: {}
  value: {{state_attr('light.living_room_ceiling_fan_light', 'brightness')}}
target:
  entity_id: input_number.living_room_light_brightness

I get the error “required key not provided @ data[‘value’]. Got None”

I feel like it worked once, and I don’t know what I changed but it didn’t work again after I tried to go to the next step I had in mind.

2

Look after the colon after data

That {} structure means null…

Then you have value right after that as it’s sub key. It cant both be null and have a sub key :wink:

One or the other. And it picked null. This the error.

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3

okay so I have deleted the {} and now have this:

action: input_number.set_value
metadata: {}
data:
  value: {{state_attr('light.living_room_ceiling_fan_light', 'brightness')}}
target:
  entity_id: input_number.living_room_light_brightness

Now I get a new error: expected float for dictionary value @ data[‘value’]. Got None

Based on the developer tools template editor this state_attr should give the result 130.

4

Your single-line template is not surrounded by quotes. That’s literally template rule #1:

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image734×175 13.7 KB

:smile:

1 Like
5

Thanks everyone.

There is something very humbling about doing this stuff.

3 Likes