NAME
    gcloud alpha spanner samples backend - run the backend gRPC service for the
        given Cloud Spanner sample app

SYNOPSIS
    gcloud alpha spanner samples backend APPNAME --instance-id=INSTANCE_ID
        [--database-id=DATABASE_ID] [--duration=DURATION; default="1h"]
        [--port=PORT] [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    (ALPHA) This command starts the backend gRPC service for the given sample
    application. Before starting the service, create the database and load any
    initial data with:

        $ gcloud alpha spanner samples init APPNAME --instance-id=INSTANCE_ID

    After starting the service, generate traffic with:

        $ gcloud alpha spanner samples workload APPNAME

    To run all three steps together, use:

        $ gcloud alpha spanner samples run APPNAME --instance-id=INSTANCE_ID

EXAMPLES
    To run the backend gRPC service for the 'finance' sample app using instance
    'my-instance', run:

        $ gcloud alpha spanner samples backend finance \
            --instance-id=my-instance

POSITIONAL ARGUMENTS
     APPNAME
        The sample app name, e.g. "finance".

REQUIRED FLAGS
     --instance-id=INSTANCE_ID
        The Cloud Spanner instance ID for the sample app.

OPTIONAL FLAGS
     --database-id=DATABASE_ID
        The Cloud Spanner database ID for the sample app.

     --duration=DURATION; default="1h"
        Duration of time allowed to run before stopping the service.

     --port=PORT
        Port on which to receive gRPC requests.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

NOTES
    This command is currently in alpha and might change without notice. If this
    command fails with API permission errors despite specifying the correct
    project, you might be trying to access an API with an invitation-only early
    access allowlist. These variants are also available:

        $ gcloud spanner samples backend

        $ gcloud beta spanner samples backend

