get-subscription-definition-version¶

Description¶

Retrieves information about a subscription definition version.

Synopsis¶

  get-subscription-definition-version
[--next-token <value>]
--subscription-definition-id <value>
--subscription-definition-version-id <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--next-token (string) The token for the next set of results, or ‘’null’’ if there are no additional results.

--subscription-definition-id (string) The ID of the subscription definition.

--subscription-definition-version-id (string) The ID of the subscription definition version. This value maps to the ‘’Version’’ property of the corresponding ‘’VersionInformation’’ object, which is returned by ‘’ListSubscriptionDefinitionVersions’’ requests. If the version is the last one that was associated with a subscription definition, the value also maps to the ‘’LatestVersion’’ property of the corresponding ‘’DefinitionInformation’’ object.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To retrieve information about a specific version of a subscription definition

The following get-subscription-definition-version example retrieves retrieves information about the specified version of the specified subscription definition. To retrieve the IDs of all versions of the subscription definition, use the list-subscription-definition-versions command. To retrieve the ID of the last version added to the subscription definition, use the get-subscription-definition command and check the LatestVersion property.

aws greengrass get-subscription-definition-version \
    --subscription-definition-id "70e49321-83d5-45d2-bc09-81f4917ae152" \
    --subscription-definition-version-id "88ae8699-12ac-4663-ba3f-4d7f0519140b"

Output:

{
    "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/subscriptions/70e49321-83d5-45d2-bc09-81f4917ae152/versions/88ae8699-12ac-4663-ba3f-4d7f0519140b",
    "CreationTimestamp": "2019-06-18T17:03:52.499Z",
    "Definition": {
        "Subscriptions": [
            {
                "Id": "692c4484-d89f-4f64-8edd-1a041a65e5b6",
                "Source": "arn:aws:lambda:us-west-2:123456789012:function:Greengrass_HelloWorld:GG_HelloWorld",
                "Subject": "hello/world",
                "Target": "cloud"
            }
        ]
    },
    "Id": "70e49321-83d5-45d2-bc09-81f4917ae152",
    "Version": "88ae8699-12ac-4663-ba3f-4d7f0519140b"
}

Output¶

Arn -> (string)

The ARN of the subscription definition version.

CreationTimestamp -> (string)

The time, in milliseconds since the epoch, when the subscription definition version was created.

Definition -> (structure)

Information about the subscription definition version.

Subscriptions -> (list)

A list of subscriptions.

(structure)

Information about a subscription.

Id -> (string)

A descriptive or arbitrary ID for the subscription. This value must be unique within the subscription definition version. Max length is 128 characters with pattern ‘’[a-zA-Z0-9:_-]+’’.

Source -> (string)

The source of the subscription. Can be a thing ARN, a Lambda function ARN, a connector ARN, ‘cloud’ (which represents the AWS IoT cloud), or ‘GGShadowService’.

Subject -> (string)

The MQTT topic used to route the message.

Target -> (string)

Where the message is sent to. Can be a thing ARN, a Lambda function ARN, a connector ARN, ‘cloud’ (which represents the AWS IoT cloud), or ‘GGShadowService’.

Id -> (string)

The ID of the subscription definition version.

NextToken -> (string)

The token for the next set of results, or ‘’null’’ if there are no additional results.

Version -> (string)

The version of the subscription definition version.

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