Added support for Starling Bank (#16522)

* Added support for Starling Bank

* Fixing Lint Issues

* Resolving Change Requests

* HTTP Error Handling & Sandbox URL Option

* Update starlingbank Requirement to v1.2

* Minor changes

.coveragerc

@@ -747,6 +747,7 @@ omit =
     homeassistant/components/sensor/sonarr.py
     homeassistant/components/sensor/speedtest.py
     homeassistant/components/sensor/spotcrime.py
+    homeassistant/components/sensor/starlingbank.py
     homeassistant/components/sensor/steam_online.py
     homeassistant/components/sensor/supervisord.py
     homeassistant/components/sensor/swiss_hydrological_data.py

homeassistant/components/sensor/starlingbank.py

@@ -0,0 +1,103 @@
+"""
+Support for balance data via the Starling Bank API.
+
+For more details about this platform, please refer to the documentation at
+https://www.home-assistant.io/components/sensor.starlingbank/
+"""
+import logging
+
+import requests
+import voluptuous as vol
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_ACCESS_TOKEN, CONF_NAME
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import Entity
+
+REQUIREMENTS = ['starlingbank==1.2']
+
+_LOGGER = logging.getLogger(__name__)
+
+BALANCE_TYPES = ['cleared_balance', 'effective_balance']
+
+CONF_ACCOUNTS = 'accounts'
+CONF_BALANCE_TYPES = 'balance_types'
+CONF_SANDBOX = 'sandbox'
+
+DEFAULT_SANDBOX = False
+DEFAULT_ACCOUNT_NAME = 'Starling'
+
+ICON = 'mdi:currency-gbp'
+
+ACCOUNT_SCHEMA = vol.Schema({
+    vol.Required(CONF_ACCESS_TOKEN): cv.string,
+    vol.Optional(CONF_BALANCE_TYPES, default=BALANCE_TYPES):
+        vol.All(cv.ensure_list, [vol.In(BALANCE_TYPES)]),
+    vol.Optional(CONF_NAME, default=DEFAULT_ACCOUNT_NAME): cv.string,
+    vol.Optional(CONF_SANDBOX, default=DEFAULT_SANDBOX): cv.boolean,
+})
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_ACCOUNTS): vol.Schema([ACCOUNT_SCHEMA]),
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the Sterling Bank sensor platform."""
+    from starlingbank import StarlingAccount
+
+    sensors = []
+    for account in config[CONF_ACCOUNTS]:
+        try:
+            starling_account = StarlingAccount(
+                account[CONF_ACCESS_TOKEN], sandbox=account[CONF_SANDBOX])
+            for balance_type in account[CONF_BALANCE_TYPES]:
+                sensors.append(StarlingBalanceSensor(
+                    starling_account, account[CONF_NAME], balance_type))
+        except requests.exceptions.HTTPError as error:
+            _LOGGER.error(
+                "Unable to set up Starling account '%s': %s",
+                account[CONF_NAME], error)
+
+    add_devices(sensors, True)
+
+
+class StarlingBalanceSensor(Entity):
+    """Representation of a Starling balance sensor."""
+
+    def __init__(self, starling_account, account_name, balance_data_type):
+        """Initialize the sensor."""
+        self._starling_account = starling_account
+        self._balance_data_type = balance_data_type
+        self._state = None
+        self._account_name = account_name
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return "{0} {1}".format(
+            self._account_name,
+            self._balance_data_type.replace('_', ' ').capitalize())
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement."""
+        return self._starling_account.currency
+
+    @property
+    def icon(self):
+        """Return the entity icon."""
+        return ICON
+
+    def update(self):
+        """Fetch new state data for the sensor."""
+        self._starling_account.balance.update()
+        if self._balance_data_type == 'cleared_balance':
+            self._state = self._starling_account.balance.cleared_balance
+        elif self._balance_data_type == 'effective_balance':
+            self._state = self._starling_account.balance.effective_balance

requirements_all.txt

@@ -1366,6 +1366,9 @@ spotipy-homeassistant==2.4.4.dev1
 # homeassistant.components.sensor.sql
 sqlalchemy==1.2.11
 
+# homeassistant.components.sensor.starlingbank
+starlingbank==1.2
+
 # homeassistant.components.statsd
 statsd==3.2.1