Simplify coordinator

custom_components/integration_blueprint/__init__.py

@@ -7,13 +7,15 @@
 
 from __future__ import annotations
 
+from datetime import timedelta
 from typing import TYPE_CHECKING
 
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.loader import async_get_loaded_integration
 
 from .api import IntegrationBlueprintApiClient
+from .const import DOMAIN, LOGGER
 from .coordinator import BlueprintDataUpdateCoordinator
 from .data import IntegrationBlueprintData
 
@@ -37,6 +39,9 @@ async def async_setup_entry(
     """Set up this integration using UI."""
     coordinator = BlueprintDataUpdateCoordinator(
         hass=hass,
+        logger=LOGGER,
+        name=DOMAIN,
+        update_interval=timedelta(hours=1),
     )
     entry.runtime_data = IntegrationBlueprintData(
         client=IntegrationBlueprintApiClient(

custom_components/integration_blueprint/config_flow.py

@@ -3,10 +3,11 @@
 from __future__ import annotations
 
 import voluptuous as vol
-from homeassistant import config_entries, data_entry_flow
+from homeassistant import config_entries
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 from homeassistant.helpers import selector
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
+from slugify import slugify
 
 from .api import (
     IntegrationBlueprintApiClient,
@@ -25,7 +26,7 @@ class BlueprintFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
     async def async_step_user(
         self,
         user_input: dict | None = None,
-    ) -> data_entry_flow.FlowResult:
+    ) -> config_entries.ConfigFlowResult:
         """Handle a flow initialized by the user."""
         _errors = {}
         if user_input is not None:
@@ -44,6 +45,13 @@ async def async_step_user(
                 LOGGER.exception(exception)
                 _errors["base"] = "unknown"
             else:
+                await self.async_set_unique_id(
+                    ## Do NOT use this in production code
+                    ## The unique_id should never be something that can change
+                    ## https://developers.home-assistant.io/docs/config_entries_config_flow_handler#unique-ids
+                    unique_id=slugify(user_input[CONF_USERNAME])
+                )
+                self._abort_if_unique_id_configured()
                 return self.async_create_entry(
                     title=user_input[CONF_USERNAME],
                     data=user_input,

custom_components/integration_blueprint/coordinator.py

@@ -2,7 +2,6 @@
 
 from __future__ import annotations
 
-from datetime import timedelta
 from typing import TYPE_CHECKING, Any
 
 from homeassistant.exceptions import ConfigEntryAuthFailed
@@ -12,11 +11,8 @@
     IntegrationBlueprintApiClientAuthenticationError,
     IntegrationBlueprintApiClientError,
 )
-from .const import DOMAIN, LOGGER
 
 if TYPE_CHECKING:
-    from homeassistant.core import HomeAssistant
-
     from .data import IntegrationBlueprintConfigEntry
 
 
@@ -26,18 +22,6 @@ class BlueprintDataUpdateCoordinator(DataUpdateCoordinator):
 
     config_entry: IntegrationBlueprintConfigEntry
 
-    def __init__(
-        self,
-        hass: HomeAssistant,
-    ) -> None:
-        """Initialize."""
-        super().__init__(
-            hass=hass,
-            logger=LOGGER,
-            name=DOMAIN,
-            update_interval=timedelta(hours=1),
-        )
-
     async def _async_update_data(self) -> Any:
         """Update data via library."""
         try:

custom_components/integration_blueprint/translations/en.json

@@ -13,6 +13,9 @@
             "auth": "Username/Password is wrong.",
             "connection": "Unable to connect to the server.",
             "unknown": "Unknown error occurred."
+        },
+        "abort": {
+            "already_configured": "This entry is already configured."
         }
     }
 }