Xiaomi vacuum clean rooms ifttt webhooks

Configuration
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Hi everyone, it’s my first post here!
I’m trying to use ifttt webhooks to clean multiple rooms with my xiaomi vacuum.

I have this in the iftt body:

{ "action": "vacuum", "entity_id": "vacuum.xiaomi_vacuum_cleaner", "area": "{{TextField}}" }

I’m trying to use app_segment_clean with the rooms IDs.

How can I use the text in the variable “area” to trigger the service vacuum.send_command with this service data:

entity_id: vacuum.xiaomi_vacuum_cleaner
command: app_segment_clean
params:
  - 16

And is there a way to clean more than one room? If so, how?

Thanks in advance!