The recommended way to create a local configuration file for the Asset Library module is through CDF's installer.
Once you had deployed CDF to your AWS account, you can generate .env file to be used for your local development.
The instruction to generate the local file can be found here. The .env file will be populated with resources and options that are specified during the deployment wizard flow.
Default properties can be found in here. Below are the properties that you can override.
# Events may be published to an MQTT topic for any additions, updates
# or deletions to groups, devices, policies, group templates, device
# templates and/or profiles. The following represents the default
# topics that are built into the application. To disable, override
# with an empty string.
EVENTS_GROUPS_TOPIC=cdf/assetlibrary/events/groups/{objectId}/{event}
EVENTS_DEVICES_TOPIC=cdf/assetlibrary/events/devices/{objectId}/{event}
EVENTS_POLICIES_TOPIC=cdf/assetlibrary/events/policies/{objectId}/{event}
EVENTS_GROUPTEMPLATES_TOPIC=cdf/assetlibrary/events/groupTemplates/{objectId}/{event}
EVENTS_DEVICETEMPLATES_TOPIC=cdf/assetlibrary/events/deviceTemplates/{objectId}/{event}
EVENTS_PROFILES_TOPIC=cdf/assetlibrary/events/profiles/{objectId}/{event}
# When a device is created, if certain attributes are not provided then
# these defaults are used. These only need to be set if they need to be
# changed.
# If no initial group to be associated with is provided when the device
# is first created, the following `relation` is created to the
# specified `groupPath`:
DEFAULTS_DEVICES_PARENT_RELATION=parent
DEFAULTS_DEVICES_PARENT_GROUPPATH=/unprovisioned
# If no initial state is provided when the device is first created, the state is set to the following:
DEFAULTS_DEVICES_STATE=unprovisioned
# Early versions of the Asset Library allowed devices and groups to be
# added to any device/group type as its parent. Later this was changed
# so that the allowed parent types may be defined in the device/group
# template, but to be backwards compatible this feature is disable by
# default. Set to `true` to enable.
DEFAULTS_GROUPS_VALIDATEALLOWEDPARENTPATHS=false
# The allowed CORS origin to validate requests against.
CORS_ORIGIN=*
CORS_EXPOSED_HEADERS=content-type,location
# If a custom domain has been configured for this module, specifying its base path here will remove
# the base path from the request to allow the module to map the incoming request to the correct lambda handler
CUSTOMDOMAIN_BASEPATH=
# The Asset Library mode. `full` (default) will enable the full feature set and
# use Neptune as its datastore, whereas `lite` will offer a reduced feature set
# (see documentation) and use the AWS IoT Device Registry as its datastore.
MODE=full
# If true, fine-grained access control will be enabled. Refer to documentation
# for additional steps required (custom IdP claims).
AUTHORIZATION_ENABLED=false
#Application logging level. Set to (in order) error, warn, info, verbose, debug or silly.
LOGGING_LEVEL=info
PORT=3000