gcloud beta emulators datastore start - start a local datastore emulator

gcloud beta emulators datastore start[--data-dir=DATA_DIR][--host-port=HOST_PORT][--no-store-on-disk][--consistency=CONSISTENCY; default=0.9    |--use-firestore-in-datastore-mode][GCLOUD_WIDE_FLAG …]

--data-dir=DATA_DIR

The directory to be used to store/retrieve data/config for an emulator run. Thedefault value is<USER_CONFIG_DIR>/emulators/datastore. Thevalue of USER_CONFIG_DIR can be found by running:

gcloudinfo--format='get(config.paths.global_config_dir)'

--host-port=HOST_PORT

The host:port to which the emulator should be bound. Can take the form of asingle address (hostname, IPv4, or IPv6) and/or port:

[ADDRESS][:PORT]

In this format you must enclose IPv6 addresses in square brackets: e.g.

[2001:db8:0:0:0:ff00:42:8329]:8080

The default value is localhost:8081.

--store-on-disk

Whether data should be persisted to disk. Enabled by default, use--no-store-on-disk to disable.

At most one of these can be specified:

--consistency=CONSISTENCY; default=0.9

Fraction of eventually consistent operations that should succeed immediately.Setting to 1.0 can be useful for unit tests, but may mask incorrect assumptionsabout non-ancestor queries which are eventually consistent.

--use-firestore-in-datastore-mode

Runs the emulator in Cloud Firestore in Datastore Mode. Reads are alwaysstrongly consistent and --consistency flag may not be specified.

Run$gcloud help for details.