Support for Aquara FP2 Sleep sensor using REST in Home Assistant

configuration.yaml

rest:
  resource: https://rpc-ger.aqara.com/app/v1.0/lumi/res/query
  method: POST
  scan_interval: 3
  headers:
      Sys-Type: 1
      Appid: FIXME
      Userid: FIXME
      Token: FIXME
      Content-Type: application/json; charset=utf-8
  payload: '{"data":[{"options":["heartrate_value","respiration_rate_value","sleep_state","body_movement_value","lux","device_offline_status"],"subjectId":"FIXME"}]}'
  sensor:
    - name: aquara_fp2_bed_heartrate_value
      unique_id: "e080fb23-1aca-4f3f-844e-c715f4a73c20"
      availability: "{{ is_state('binary_sensor.bedroom_presence_presence_sensor_1', 'on') }}"
      value_template: "{{ value_json.result[0].value | float }}"
      unit_of_measurement: "bpm"
      state_class: "measurement"
      json_attributes_path: "$.[0]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

    - name: aquara_fp2_bed_respiration_rate_value
      unique_id: "6b6a384d-435a-4d91-9cbb-b1c10d228ff1"
      availability: "{{ is_state('binary_sensor.bedroom_presence_presence_sensor_1', 'on') }}"
      value_template: "{{ value_json.result[1].value | float }}"
      unit_of_measurement: "bpm"
      state_class: "measurement"
      json_attributes_path: "$.[1]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

    - name: aquara_fp2_bed_sleep_state
      unique_id: "9283e24a-5a40-4503-aa34-d30f29af0642"
      value_template: >-
            {% set sleep_states = {
            0: 'Out of Bed',
            1: 'In Bed',
            2: 'Fully Awake',
            3: 'REM Sleep',
            4: 'Light Sleep',
            5: 'Deep Sleep'
            } %}
            {{ sleep_states[value_json.result[2].value | int] }}
      json_attributes_path: "$.[2]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

    - name: aquara_fp2_bed_body_movement_value
      unique_id: "01440a16-90e0-4408-87fd-c5bda8c81ef3"
      availability: "{{ is_state('binary_sensor.bedroom_presence_presence_sensor_1', 'on') }}"
      value_template: "{{ value_json.result[4].value | float }}"
      state_class: "measurement"
      json_attributes_path: "$.[4]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

    - name: aquara_fp2_bed_lux
      unique_id: "96e1f524-0da2-4b1f-9a5c-b5ac1c836154"
      availability: "{{ is_state('binary_sensor.bedroom_presence_presence_sensor_1', 'on') }}"
      value_template: "{{ value_json.result[5].value | float }}"
      unit_of_measurement: "lux"
      state_class: "measurement"
      json_attributes_path: "$.[5]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

    - name: aquara_fp2_bed_device_offline_status
      unique_id: "e21f6835-943e-40a7-b814-ff9e319e4ab5"
      availability: "{{ is_state('binary_sensor.bedroom_presence_presence_sensor_1', 'on') }}"
      value_template: "{{ value_json.result[3].value | float }}"
      state_class: "measurement"
      json_attributes_path: "$.[3]"
      json_attributes:
          - attr 
          - value
          - subjectId
          - timeStamp

I think this is now deprecated.

I captured the API used in my app, and it seems that https://rpc-ger.aqara.com/app/v1.0/lumi/res/query no longer works.
Instead, the API call is made to https://rpc-kr.aqara.com/app/v1.0/lumi/res/query/by/resourceId.
I also captured the token and appId to use the retrieved data.
And The format of the data included in the headers is slightly different as well.

API requests call data using resourceIds rather than names. This can be found in the Aqara Developer Console.

Just in case, the solution above still works for me. May the difference be region-dependent? Yours seems to phone home to kr=Korea, my seems to be in ger=Germany.

Yes my server is Kr
I think the API specs used in my region are different. Thanks for the answer.