NAME
    gcloud apihub attributes create - create an Attribute

SYNOPSIS
    gcloud apihub attributes create (ATTRIBUTE : --location=LOCATION)
        --data-type=DATA_TYPE --display-name=DISPLAY_NAME --scope=SCOPE
        [--allowed-values=[description=DESCRIPTION],
          [displayName=DISPLAYNAME],[id=ID],[immutable=IMMUTABLE]]
        [--cardinality=CARDINALITY] [--description=DESCRIPTION]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Create an attribute

EXAMPLES
    To create an attribute with the ID my-attribute, run:

        $ gcloud apihub attributes create --attribute=my-attribute \
            --display-name="My Attribute" --scope=api --data-type=string \
            --project=my-project --location=us-central1

POSITIONAL ARGUMENTS
     Attribute resource - Identifier. The name of the attribute in the API Hub.

     Format: projects/{project}/locations/{location}/attributes/{attribute} The
     arguments in this group can be used to specify the attributes of this
     resource. (NOTE) Some attributes are not given arguments in this group but
     can be set in other ways.

     To set the project attribute:
      ◆ provide the argument attribute on the command line with a fully
        specified name;
      ◆ provide the argument --project on the command line;
      ◆ set the property core/project.

     This must be specified.

       ATTRIBUTE
          ID of the attribute or fully qualified identifier for the attribute.

          To set the attribute attribute:
          ▸ provide the argument attribute on the command line.

          This positional argument must be specified if any of the other
          arguments in this group are specified.

       --location=LOCATION
          The location id of the attribute resource.

          To set the location attribute:
          ▸ provide the argument attribute on the command line with a fully
            specified name;
          ▸ provide the argument --location on the command line.

REQUIRED FLAGS
     --data-type=DATA_TYPE
        The type of the data of the attribute. DATA_TYPE must be one of:

         enum
            Attribute's value is of type enum.
         json
            Attribute's value is of type json.
         string
            Attribute's value is of type string.
         uri
            Attribute's value is of type uri.

     --display-name=DISPLAY_NAME
        The display name of the attribute.

     --scope=SCOPE
        The scope of the attribute. It represents the resource in the API Hub
        to which the attribute can be linked. SCOPE must be one of:

         api
            Attribute can be linked to an API.
         api-operation
            Attribute can be linked to an API Operation.
         definition
            Attribute can be linked to a definition.
         dependency
            Attribute can be linked to a Dependency.
         deployment
            Attribute can be linked to a Deployment.
         external-api
            Attribute can be linked to a ExternalAPI.
         plugin
            Attribute can be linked to a Plugin.
         spec
            Attribute can be linked to a Spec.
         version
            Attribute can be linked to an API version.

OPTIONAL FLAGS
     --allowed-values=[description=DESCRIPTION],[displayName=DISPLAYNAME],[id=ID],[immutable=IMMUTABLE]
        The list of allowed values when the attribute value is of type enum.
        This is required when the data_type of the attribute is ENUM. The
        maximum number of allowed values of an attribute will be 1000.

         description
            The detailed description of the allowed value.

         displayName
            The display name of the allowed value.

         id
            The ID of the allowed value.
            ▸ If provided, the same will be used. The service will throw an
              error if the specified id is already used by another allowed
              value in the same attribute resource.
            ▸ If not provided, a system generated id derived from the display
              name will be used. In this case, the service will handle conflict
              resolution by adding a system generated suffix in case of
              duplicates.

            This value should be 4-63 characters, and valid characters are
            /[a-z][0-9]-/.

         immutable
            When set to true, the allowed value cannot be updated or deleted by
            the user. It can only be true for System defined attributes.

        Shorthand Example:

            --allowed-values=description=string,displayName=string,id=string,immutable=boolean --allowed-values=description=string,displayName=string,id=string,immutable=boolean

        JSON Example:

            --allowed-values='[{"description": "string", "displayName": "string", "id": "string", "immutable": boolean}]'

        File Example:

            --allowed-values=path_to_file.(yaml|json)

     --cardinality=CARDINALITY
        The maximum number of values that the attribute can have when
        associated with an API Hub resource. Cardinality 1 would represent a
        single-valued attribute. It must not be less than 1 or greater than 20.
        If not specified, the cardinality would be set to 1 by default and
        represent a single-valued attribute.

     --description=DESCRIPTION
        The description of the attribute.

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.

API REFERENCE
    This command uses the apihub/v1 API. The full documentation for this API
    can be found at:
    https://cloud.google.com/apigee/docs/api-hub/what-is-api-hub

NOTES
    This variant is also available:

        $ gcloud alpha apihub attributes create