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

How to use:

• replace FIXME with values you get out of sniffing the traffic from your Aquara APK (or using https://github.com/sdavides/AqaraPOST-Homeassistant/tree/main/generatejson#generate-token-from-username-and-password)
• replace the sensor name for Availability to zero out readings when you're not in bed with your actual HomeKit one