So after going further and further with my HA installation, I managed to convert the python script from Kyle Johnson to an AppDaemon app 
Here is the code of the ecowater.py file (to be placed in the ‘appdaemon\apps’ folder) :
import mqttapi as mqtt
import datetime
from datetime import timedelta
import requests
import json
import re
#
# Retrieve data from EcoWater interface and publish to MQTT
#
# Args: ecowater_minutes, ecowater_dsn, ecowater_email, ecowater_password
#
# Credits : Thanks to Kyle Johnson for the original code (https://www.gnulnx.net/2020/02/18/ecowater-api-scraping/)
#
# Converted to AppDaemon by kalhimeo
#
class EcoWater(mqtt.Mqtt):
def initialize(self):
# Run every X minutes
self.run_every(self.run_parsing, datetime.datetime.now() + timedelta(seconds=3), self.args["ecowater_minutes"] * 60)
def run_parsing(self, kwargs):
# Regex to match the hidden input on the initial log in page
request_validation_re = re.compile(r'<input name="__RequestVerificationToken" type="hidden" value="(.*?)" />')
# The serial number of your ecowater device
dsn = { "dsn": self.args["ecowater_dsn"], }
# The initial form data
payload = {
"Email" : self.args["ecowater_email"],
"Password" : self.args["ecowater_password"],
"Remember" : 'false'
}
# The headers needed for the JSON request
headers = {
'Accept': '*/*',
'Accept-Encoding': 'gzip, deflate, br',
'Accept-Language' : 'en-US,en;q=0.5',
'X-Requested-With': 'XMLHttpRequest',
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0'
}
with requests.Session() as s:
# Initial GET request
g = s.get('https://www.wifi.ecowater.com/Site/Login')
# Grab the token from the hidden input
tokens = request_validation_re.findall(g.text)
# Add the token to the form data payload
payload['__RequestVerificationToken'] = tokens[0]
# Log in to the site
login = s.post('https://www.wifi.ecowater.com/Site/Login', data=payload)
# Add the correct Referer header
headers['Referer'] = login.url + '/' + dsn['dsn']
# Query the JSON endpoint for the data that we actually want
data = s.post('https://www.wifi.ecowater.com/Dashboard/UpdateFrequentData', data=dsn, headers=headers)
# Load the data in to json
jsonv = json.loads(data.text)
# Delete the elements that we don't want
del jsonv['water_units']
del jsonv['time']
# Publish each piece of json data in to mqtt
for d in jsonv:
self.mqtt_publish('ecowater/' + d, jsonv[d])
You need to add the app in the apps.yaml and provide some parameters :
EcoWater:
module: ecowater
class: EcoWater
ecowater_minutes: 60
ecowater_dsn: 'your_ecowater_serial_number'
ecowater_email: 'your_email_account_for_ecowater_portal'
ecowater_password: 'your_password_for_ecowater_portal'
You can then use the MQTT data as sensors and binary sensors in HA, example :
binary_sensor:
- platform: mqtt
name: Ecowater Online
state_topic: "ecowater/online"
payload_on: True
payload_off: False
sensor:
- platform: mqtt
name: Ecowater Salt Level
state_topic: "ecowater/salt_level"
Available binary sensors : online, recharge, out_of_salt
Available sensors : salt_level, salt_level_percent, water_today, water_avg, water_avail, water_flow, out_of_salt_days
That’s it , have fun !
