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title | sidebar_label | id | original_id |
---|---|---|---|
Config Entries | Introduction | version-0.72-config_entries_index | config_entries_index |
Config Entries are configuration data that are persistently stored by Home Assistant. A config entry is created by a user via the UI. The UI flow is powered by a config flow handler as defined by the component.
Setting up an entry
During startup, Home Assistant first call the normal component setup,
and then call the method async_setup_entry(hass, entry)
for each entry. If a new Config Entry is
created at runtime, Home Assistant will also call async_setup_entry(hass, entry)
(example).
For platforms
If a component includes platforms, it will need to forward the Config Entry to the platform. This can be done by calling the forward function on the config entry manager (example):
# Use `hass.async_add_job` to avoid a circular dependency between the platform and the component
hass.async_add_job(hass.config_entries.async_forward_entry_setup(config_entry, 'light'))
For a platform to support config entries, it will need to add a setup entry method (example):
async def async_setup_entry(hass, config_entry, async_add_devices):
Unloading entries
Components can optionally support unloading a config entry. When unloading an entry, the component needs
to clean up all entities, unsubscribe any event listener and close all connections. To implement this,
add async_unload_entry(hass, entry)
to your component (example).
Platforms will not need to add any logic for unloading a config entry. The entity component will take care of this.
If you need to clean up resources used for an entity, implement the async_will_remove_from_hass
method on the Entity (example).